171 Sentences With "percolates" | Random Sentence Generator

This enmity, they argue, percolates into opinions about everyday life.

This album percolates and glows, basking in a honeymoon's ephemerality.

The notion percolates all the way down to tart cherries.

"People tend to assume the system percolates happily along," she said.

They're basically a cauldron in which past drama percolates before boiling over.

A debate percolates among economists whether the bond-buying program did any good.

This attitude quickly percolates through the team and can be deadly for the culture.

" Development percolates in, Bahr says, and people simply say, "Oh, well, what's one more road?

The hydrogen often comes from serpentinization, when water percolates usually through rocks from the mantle.

It comes down to nurturing intrapreneurship — a spirit of innovation that percolates from within as a company scales.

Income polarization percolates as a universal theme within the film, but the Korean director leaves his own stamp.

The water percolates down through the ice, and eventually flows into the ocean, where it adds to sea level.

"Airborne" percolates with baubles of percussion, Nile Rodgers-esque disco guitars, and vocal samples all buffed to a sheen.

That's because as water percolates to depth, it tends to concentrate contaminants from above, including pesticides, fertilizer, and septic tank runoff.

When hermetically sealed, however, without a performer's pronouncements getting in the way, the same music percolates happily according to its own internal logic.

I put on some coffee for him and put a bagel in the toaster, and while that percolates/toasts, I blowdry my hair.

These bits of land next to roadways collect rainwater, which then percolates through soil and gathers in a drain, before heading out to sea.

As Nasdaq's biotechnology exchange-traded fund (IBB) percolates higher on the year, some analysts see a struggling sector finally dragging itself out of the weeds.

Widely known amongst college dorm film auteurs as a de facto advocate for Pabst Blue Ribbon, Lynch's status as a coffee aficionado percolates throughout Twin Peaks.

"What happens with landfills is that when it rains, the rain percolates through the landfill and at the bottom there's a toxic stew that forms," Enck said.

Yearning, one of the most poignant shared human experiences, percolates in the indeterminate void between the beginning of desire and the end of it (satiation or disappointment).

Speculation periodically percolates on far-leftist websites that Mao's tourist-thronged mausoleum in central Beijing's Tiananmen Square will be demolished, or moved elsewhere, though officials have dismissed this.

According to Renouf's website, the machine uses "stainless steel ball bearings that boil the water through induction heating," which then percolates through the coffee and into the waiting cup.

Amelia Meath sings about "faking the truth in a new pop song/Don't you want to sing along?" as the music percolates along for three-and-a-half minutes.

The idea sort of percolates out there largely through their activism through the 1970s But then Julius Hobson dies of cancer in 1977, and the statehood party begins to fall apart.

What is known, however, is that every day, as much as much as 150 tons of groundwater percolates into the reactors through cracks in their foundations, becoming contaminated with radioactive isotopes in the process.

"These measures will ensure that the easy policy stance percolates to the real economy and materially lowers financing costs," said Radhika Rao, DBS economist in a Wednesday note, echoing similar sentiments by Goldman Sachs.

This will not only reduce river levels, but as the water percolates into the land it should provide another benefit, helping to recharge aquifers that have been depleted statewide because of pumping for agriculture.

We begin with the young ensemble roaming David Rockwell's airy, mutable set (lighted by Japhy Weideman) with hopeful smiles and what look like bound copies of the script, while blithe piano music percolates through the air.

Nevertheless, the movie percolates enough that even when, at its climax, it shamelessly recycles a grisly punch line from 1987's "RoboCop," it's kind of endearing, not least because Mr. Anderson and company make it work.

Unlike a coffee filter, through which liquid percolates and grinds are contained, the membrane works in reverse by allowing larger particles to pass through, while keeping smaller ones at bay, and words really don't do it justice.

You have to drive a couple of hours to escape the metro area's prolific spread, which percolates into the surrounding valleys like an ever-growing amoeba, but when you finally do, the Mojave Desert swallows you whole.

While the Trump administration's lawsuit percolates in the district court—with battles at the Ninth Circuit Court of Appeals and, possibly, the Supreme Court months down the road—the war of words between state and federal officials is likely to continue.

Blom's rough-cut, hoarse roar remains the most potent and enduring reminder of Agrimonia's crust punk origins; even during the album's prettiest moments, her vocals never falter or soften, refusing to temper the aggression that percolates within the album's core.

"While Sulzer is not immune to the climate of economic uncertainty that percolates from some of the markets or geographies that the company is active in, it does not see at this point signs of a slowdown in its leading indicators," the company said.

Her technical prowess as a painter has been accompanied by a fierce commitment to questioning business as usual: the clichéd concepts of female beauty and sexual pleasure; the power dynamics between men and women; the violence that percolates, like bubbling lava, through ordinary life.

But the real reasons are obviously far more complex, rooted not just in a willingness among so many people to disregard the issue but in a hostility, sublimated or otherwise, toward the very poor that percolates even in some of the most liberal quarters of the country.

"Even as a modern, homegrown, and ever-changing culture percolates below the surface ...Washington holds to its historical ideal of a city built on a common heritage — a place for all Americans to reflect on a shared identity, even in a contentious election year," Montague writes.

But the uncomfortable proximity of terror and pleasure, the mark of mortality in the midst of intimacy, percolates beneath the surface at all times, so that even at its most extreme and obscene — "BLKS" is not for prudish ears or eyes — it is serious and sad and profoundly human.

As with all "fake news" that percolates through social media and across the political spectrum, the stories' accuracy is less important than their use as "a marker of identity, a way to proclaim your affinity with a particular community," as Judith Donath, a professor at MIT's Media Lab, puts it.

Painted mainly in yellows, it percolates with horizontal, vertical, zigzag and circular brushstrokes, supplemented by dabs and swirls overlaid with drips and drizzles of red, sea-blue, bright green, and pink, an eruptive and bubbling surface that coheres with the patient viewer's unfolding fluency in the brushwork's measured and predictable patterns.

Because I think if you look at some of the best sociologists and political scientists and so forth who are writing on this, William Julius Wilson, Robert Putnam, these guys are worried about culture; they're just not worried about culture in a way that necessarily percolates to the standard everyday political conversation.

"This is contrary to two centuries of federal policy, which is the idea that you have dueling views in the lower courts before a matter percolates to the Supreme Court and the Supreme Court can choose among different views," he told an audience at the University of California, Irvine School of Law.

He's long been the band's sole member, in addition to having recorded and mixed the album (Jack Shirley at Atomic Garden stepped in to handle mastering) so that triple-duty is nothing new; rather, he's clearly invested a great deal of time and thought into perfecting his gloomy, generously melodic take on black metal—a sound whose harmonies retain traces of the project's folk-inspired roots, whose vocals are sparse and ragged, and whose percussion percolates quietly but purposefully under the rush of riffs and blankets of distortion.

There are two types of surangas - 1) dug in the hillocks with the help of galvazined pipes in a horizontal direction, from where the water percolates out (known as addaboru in Kannada) and 2) horizontally dug tunnel like structures which are as high as the height of a man, from where the water percolates out and collects into a water tank.

These sorts of conditions can persist over several years, even with above average rainfall, as the rainfall only slowly percolates through the water stores and replenishes them.

Hard rock areas are Guindy, Velachery, Adambakkam and a part of Saidapet. In sandy areas such as Tiruvanmiyur, Adyar, Kottivakkam, Santhome, George Town, Tondiarpet and the rest of coastal Chennai, rainwater run-off percolates very quickly. In clayey and hard rock areas, rainwater percolates slowly, but it is held by the soil for a longer time. The city's clayey areas include T. Nagar, West Mambalam, Anna Nagar, Perambur and Virugambakkam.

Since the Fifties the industrial refuses received different attention and their disposal requirements improved. Leachate, the contaminated liquid which percolates through landfill material, was not prevented and this resulted in cases of environmental damages.

There are no rivers; any rainfall that is not absorbed by the dense rooting systems of the native flora percolates to form extremely saline groundwater, which is very frequently too salty even for adult sheep.

Originating in the park, Mammoth Spring averages a flow rate of per hour of water. Rainfall in southern Missouri percolates into the ground, flows through Grand Gulf State Park and reemerges as Mammoth Spring in Arkansas.

If water falls uniformly over a field such that field capacity of the soil is not exceeded, then negligible water percolates to groundwater. If instead water puddles in low-lying areas, the same water volume concentrated over a smaller area may exceed field capacity resulting in water that percolates down to recharge groundwater. The larger the relative contributing runoff area is, the more focused infiltration is. The recurring process of water that falls relatively uniformly over an area, flowing to groundwater selectively under surface depressions is depression focused recharge.

The (slightly over pressurized) trajectory works as a main airduct from which fresh air percolates to the offices to be drawn off via the double (plenum) facade. This ventilation concept is part of a strategy to integrate more functions into one element.

Rainfall percolates readily into the sandy soil, recharging the aquifer and giving rise to hundreds of permanent lakes; but the sandy soil is poorly suited for cultivation, and the area is chiefly used for cattle ranching."The Sandhills". Nebraska State Historical Society.

The Allmusic review by Jason Ankeny states "The album percolates with energy and daring, with an underlying soulfulness ...For all the mechanics at work throughout One Long String, the end result is a record that never loses focus or its sense of collaborative spirit".

Mean rainfall in the upper Florida Keys is , and in the lower Keys is about . The majority of this precipitation (75 percent) occurs between June and October. Rainfall generally percolates quickly through the soil, maintaining fresh water or low salinity "lenses" below many hammocks.

Anaerobic wetlands may be lined or unlined shallow ponds filled with organic matter, such as compost, and underlain by limestone gravel. Water percolates through the compost, becomes anaerobic and metals precipitate as sulfides. Microorganisms facilitate this reaction by first consuming oxygen. Alkalinity and H2S are produced.

In the wet snow zone, all the seasonal snow melts. The meltwater either percolates into the depths of the glacier or flows down-glacier where it might refreeze as superimposed ice. A glacier's equilibrium line is located at the lower limit of the wet snow zone.

"- Polari Magazine "A sense of historic Soho (Rimbaud and Verlaine, Quentin Crisp) percolates through the book." – One80 magazine "Original anecdotes and real life stories told with a Hogarthian incisiveness." – West End Extra "Clayton Littlewood evokes the sights and smells of an historic gaybourhood."- Toronto Star (Canada) "Funny. Observant.

Allmusic's Jason Ankeny said: "Main Squeeze percolates but never quite boils over. It's a collection of short, sharp and oh-so-sincere funk workouts performed with both style and skill, the album simply plays its cards too close to the vest, controlling the groove but never giving in to it".

Water percolates down into the stream bed, causing an abrupt loss of energy and resulting in vast deposition. Wadis may develop dams of sediment that change the stream patterns in the next flash flood. Wind also causes sediment deposition. When wadi sediments are underwater or moist, wind sediments are deposited over them.

Underground hydrological resources are a substantial supplemental source of water in Delhi, especially in the affluent sections of the city. In the residential plots called the 'farmhouses' almost every household draws from this resource. Though water-storing rocks, i.e. aquifers, are renewed as surface rain-water percolates down, they are not inexhaustible.

Water is collected or generated on Kwajalein Island and distributed by barge to Meck, Illeginni, and Gugeegue. Kwaj collects rainfall from the runway into a catch basin where it is stored and treated. A secondary source is from "skim wells" on Kwaj and Roi-Namur. Rain percolates through the coral during the wet season.

In isotropic percolation a spreading agent (e.g. water) introduced at a particular site percolates along open bonds, generating a cluster of wet sites. Contrarily, in directed percolation the spreading agent can pass open bonds only along a preferred direction in space, as indicated by the arrow. The resulting red cluster is directed in space.

The liquid encased is petroleum, and the gas bubble is methane. Enhydros are formed when water rich in silica percolates through volcanic rock, forming layers of deposited mineral. As layers build up, the mineral forms a cavity in which the water becomes trapped. The cavity is then layered with the silica-rich water, forming its shell.

The spring water at Many Springs has a year-round temperature of about and does not freeze in the winter. It originates as precipitation in the surrounding mountains and percolates down to a depth of about where it is warmed by geothermal heat. It then circulates up along the plane of the McConnell Thrust, which passes under the park beneath Many Springs.

Water issuing from a hot spring is heated geothermally, that is, with heat produced from the Earth's mantle. In general, the temperature of rocks within the earth increases with depth. The rate of temperature increase with depth is known as the geothermal gradient. If water percolates deeply enough into the crust, it will be heated as it comes into contact with hot rocks.

When precipitation falls on open landfills, water percolates through the garbage and becomes contaminated with suspended and dissolved material, forming leachate. If this is not contained it can contaminate groundwater. All modern landfill sites use a combination of impermeable liners several metres thick, geologically stable sites and collection systems to contain and capture this leachate. It can then be treated and evaporated.

A recent development in forensic science is the isotopic analysis of hair strands. Hair has a recognisable growth rate of 9-11mm per month or 15 cm per year. Human hair growth is primarily a function of diet, especially drinking water intake. The stable isotopic ratios of drinking water are a function of location, and the geology that the water percolates through.

The plain may support fresh water wetlands or Sitka Spruce forests following uplift events and salt marsh or inundated shellfish beds following subsidence events. The relatively small catchment basin tributary to Freshwater Lagoon has allowed formation of a durable coastal sand bar which has not been breached by recent storm events. Precipitation usually percolates through the bar without forming a surface channel.

The heated water percolates upwards, dissolving calcium carbonate from limestone deposits on its way by. When it reaches the surface springs, the water cools and the calcium carbonate particles are released. These microscopic particles settle to form porous calcite rims around the pools of water. These pools range in size from that of a bathtub to that of a fingernail.

For example, unemployed home builders can be hired to expand highways. Tax cuts allow consumers to increase their spending, which boosts aggregate demand. Both tax cuts and spending have multiplier effects where the initial increase in demand from the policy percolates through the economy and generates additional economic activity. The effects of fiscal policy can be limited by crowding out.

Soldier Meadows Warm Pond is a large warm spring located in the middle of the meadow with a large natural, two-foot deep soaking pool. The warm mineral water percolates up through the sand and gravel bottom. The temperature ranges from 90–102 °F. A half mile away is a second small warm pond with a temperature of 100 °F.

It flows for two kilometres before joining the River Wye, which is also notified as an SSSI. Approximately a kilometre section of the stream includes the main focus of tufa deposition. Rainwater (which percolates into sinkholes in the limestone), is enriched with dissolved calcium carbonate. When emerging from springs along the brook, the removal of carbon dioxide causes precipitation of calcium carbonate.

The first layer is coarse gravel that is 15 to 20 centimeters thick. Followed by fine gravel that is 10 centimeters thick. The third layer is sand that can be between 10 and 15 centimeters and serves as the filter between the sludge and gravel. Sludge dries up and water percolates to the first layer that is collected at the drainage pipe that is beneath all layers.

Baseflow is derived from bedrock water storage near surface valley soils and riparian zones. Water percolates to groundwater and then flows to a body of water. Baseflow depletion curve is the declining of baseflow/groundwater and soil reserves. The volume and rate of water moving as baseflow can be affected by macropores, micropores, and other fractured conditions in the soil and shallow geomorphic features.

Lava flows erupted from the flanks of Mount Edziza. Hot springs are present throughout the Northern Cordilleran Volcanic Province, indicating magmatic heat is present under the Northern Cordilleran Volcanic Province. They are formed if water percolates deeply through the crust and heats up from the primal magmatic heat under the surface. After the groundwater is heated, the heated groundwater rises to the surface as a hot spring.

Deborah Evans Price, of Billboard magazine reviewed the song favorably, calling it a "great little tune about the underdog fulfilling his dreams, and the story is wrapped in a melody that demands attention." She goes on to call Keith's performance "feisty" and say that the production "just percolates."Billboard, November 20, 1999 Jessica Andrews references both Keith and the song in her 2002 single "There's More to Me Than You".

Infiltration reclaims stormwater runoff and allows for groundwater recharge. Runoff enters the soil and percolates through to the subsurface. The rate of infiltration is affected by soil compaction and storage capacity, and will decrease as the soil becomes saturated. The soil texture and structure, vegetation types and cover, water content of the soil, soil temperature, and rainfall intensity all play a role in controlling infiltration rate and capacity.

These are formed when rainwater - a weak carbonic acid capable of dissolving limestone - percolates through it via the grykes and joints underground. This means the limestone is pervious. As this happens the limestone is dissolved and removed in solution. Caverns are often found below the surface in the limestone and as the lime-rich water finds its way underground it begins to drip from the roof of the cavern.

These are formed when rain falls on the highly acidic topsoil. The water increases in acidity as it percolates through the topsoil then dissolves the underlying chalk. Eventually there is nothing but topsoil above the caverns so formed and the familiar shape of a doline is created when the topsoil collapses into the cavern beneath. Dolines are usually shaped like a teardrop cut in half vertically and laid down horizontally.

The third layer is sand that can be between 10 and 15 centimeters thick and acts as filter between sludge and gravel. Sludge dries up and water percolates to the first layer and collected at the drainage pipe located below every layer. Fecal sludges behave differently during dewatering processes than wastewater sludges. The amount of extracellular polymeric substances (EPS) can be an important predictor for faecal sludge dewatering performance.

In many places it is quite barren. Geologically, the islands are an extension of the Burren in Clare, on the mainland to the southeast: an uplifted limestone block, striated by gashes ranging from inches to hundreds of feet deep. Water percolates right through the stone, leading sometimes to water shortages and preventing the formation of the typically boggy western Irish land form. Peat for fires had to be imported from Galway.

A large percentage of precipitation passes through the canopy. This provides a protective snow cover in winter and in warm seasons precipitation percolates through the leaf cover to nourish plants which require surface soil moisture. The result of the above factors is an extensive understory of vegetation in the aspen forest. Common shrubs and herbs are: saskatoon, red-osier dogwood, raspberry, wild rose, currants and bracted honeysuckle, wild sarsaparilla, hairy lungwort, asters, and peavine.

Satellite image of Chennai Chennai's soil is mostly clay, shale and sandstone. Clay underlies most of the city, chiefly Manali, Kolathur, Maduravoyal, K. K. Nagar, Tambaram, Mudichur, Pallavaram Semmencherry, Alapakkam, Vyasarpadi and Anna Nagar. Sandy areas are found along the river banks and coasts, and include areas such as Tiruvottiyur, George Town, Madhavaram, New Washermanpet, Chepauk, Mylapore, Porur, Adyar, Besant Nagar and Uthandi. In these areas, rainwater runoff percolates quickly through the soil.

In hydrological and fluvial landforms, the thalweg is a line drawn to join the lowest points along the entire length of a stream bed or valley in its downward slope, defining its deepest channel. The thalweg thus marks the natural direction (the profile) of a watercourse. The term is also sometimes used to refer to a subterranean stream that percolates under the surface and in the same general direction as the surface stream.

Infiltration is the process by which water enters the soil. Some of the water is absorbed, and the rest percolates down to the water table. The infiltration capacity, the maximum rate at which the soil can absorb water, depends on several factors. The layer that is already saturated provides a resistance that is proportional to its thickness, while that plus the depth of water above the soil provides the driving force (hydraulic head).

" Steven Rea wrote that "Christian Petzold's masterfully hushed, suspenseful thriller percolates with dread....Hoss, wearing her blond hair pulled back tight, and wearing an expression of inscrutable melancholy, gives a performance that doesn't feel like a performance at all. Her Barbara is absolutely real, and absolutely trapped. The film is aching, and exquisite." In The Independent, Jonathan Romney includes Barbara in the genre of war stories - "as nerve-wracking as the best.

The hot mineral water emerges from the ground between 110 °F to 151 °F. Colonies of cyanobacteria grow in the spring, coloring areas along the edges with white, yellow and orange residue. Rainwater percolates through a deep fracture in the bedrock where it is heated by magma and emerges through rocks near the surface. Granitic rocks of the hot springs pluton have intruded on the south side of the Caribou Mountain complex.

As the regional surface water percolates downward through rocks below the Mount Cayley field, it reaches areas of high temperatures surrounding an active or recently solidified magma reservoir. Here, the water is heated, becomes less dense and rises back to the surface along fissures or cracks. These features are sometimes referred to as dying volcanoes because they seem to represent the last stage of volcanic activity as the magma at depth cools and hardens.

The lymph capillaries drain the lymph to larger contractile lymphatics, which have valves as well as smooth muscle walls. These are called the collecting lymphatics. As the collecting lymph vessel accumulates lymph from more and more lymph capillaries in its course, it becomes larger and is called the afferent lymph vessel as it enters a lymphs node. Here the lymph percolates through the lymph node tissue and is removed by the efferent lymph vessel.

In the area of the railway station property in Stromberg, this area stretches along the left bank of the Guldenbach. In both places, the limestone deposits have been exploited commercially for decades, thereby leaving considerable scarring on the landscape. Worth noting is the way that the Dörrebach percolates into the ground along its eastern stretch, beginning under the bridge at the Weinbergerhof inn. The water is positively swallowed up by several holes, called ponors.

Discussed in the text are a subducting plate (5); an island arc (15) overlying a mantle wedge; a mid-ocean ridge (12); and a hotspot (3). Water is not just present as a separate phase in the ground. Seawater percolates into oceanic crust and hydrates igneous rocks such as olivine and pyroxene, transforming them into hydrous minerals such as serpentines, talc and brucite. In this form, water is carried down into the mantle.

Blood also flows from branches of the hepatic artery and mixes in the sinusoids to supply the hepatocytes with oxygen. This mixture percolates through the sinusoids and collects in a central vein which drains into the hepatic vein. The hepatic vein subsequently drains into the inferior vena cava. The hepatic artery provides 30 to 40% of the oxygen to the liver, while only accounting for 25% of the total liver blood flow.

Chalk is a highly porous and permeable rock, and rain falling onto chalk topography percolates directly into the ground, where the chalk layer acts as an aquifer. The groundwater flows through the chalk bedrock, re-emerging lower down the slope in springs. The chalk acts as a temporary reservoir by regulating the amount of water supplied to the springs. This is why many chalk streams in the UK have stable flow regimes that vary only slightly over time.

The basic design is a wall of hollow concrete slabs, with compartments opening on one or both sides of the wall. The hollows are filled with inert material like gravel, expanded clay aggregate, perlite, or vermiculite. It is designed to let the water trickle over the longest possible treatment path along the length of the wall among the pebbles. The water is brought in at the top, and percolates following a zig-zag pattern inside the wall.

Sand tends to fall into these cracks resulting in "jacking" of the cracks. Water percolates vertically down through the soil, but it also creeps horizontally under the paved shoulder. This may be a particular problem with narrow paved shoulders in regions with frequent freeze-thaw cycles that may result in frequent frost- heaving of the paved shoulder. US and Canadian guidelines recommend not installing rumble strips in asphalt pavement displaying cracks, to avoid excessive break-up of pavement.

The female constructs a depression in a location in the stream bed, sometimes referred to as a "redd", where groundwater percolates upward through the gravel. One or more males approach the female, fertilizing the eggs as the female expresses them. A majority of spawnings involve peripheral males which directly influences the number of eggs that survive into adulthood. In general, the larger the number of peripheral males present, the more likely the eggs will be cannibalized.

Every year, about of water flow into the delta. Roughly 60% is consumed through transpiration by plants, 36% by evaporation, 2% percolates into the aquifer system; and 2% flows into Lake Ngami. This turgid outflow means that the delta is unable to flush out the minerals carried by the river and is liable to become increasingly salty and uninhabitable. Water salinity is reduced by salt collecting around plant roots as most of the incoming water is transpired by plants.

The Phoenix Vernal Pools are located in Fair Oaks, a suburb of Sacramento city, around 20 miles east of the city of Sacramento and north of highway 50. This land consists of seasonally inundated wetlands that form after winter rains. The climate type of Phoenix Vernal Pools is classified as Mediterranean, receiving of rain per year. The rainwater percolates into the soil until it reaches an impermeable hardpan that causes an elevated water table, forming the vernal pools.

One brush effect is "stirring" on the snare, which creates a sustained sound for ballads. bubbles : A term most used within Reggae music to describe an electronic or Hammond organ part of short duration (usually an eight-note in length) typically played on the 2nd and 4th beats of a 4/4 progression. It is most often voiced with a dark and "wet" or reverberated sound, creating an effect that subtly "percolates" within the domain of the rhythm section.

The water which bubbles up from the ground at Bath falls as rain on the nearby Mendip Hills. It percolates down through limestone aquifers to a depth of between where geothermal energy raises the water temperature to between . Under pressure, the heated water rises to the surface along fissures and faults in the limestone. This process is similar to an enhanced geothermal system, which also makes use of the high pressures and temperatures below the earth's crust.

The first is 'heap' leaching in which the dilute cyanide solution is sprayed on large piles or heaps of coarse gold ore. The solution percolates through the pile dissolving the gold and the pregnant solution is then collected. This method is mainly used for ore with lower concentrations of gold. The other method is 'vat' leaching in which the process is similar but the gold ore is finely ground and leaching takes place in a tank or vat.

The coral reefs provide the raw material for the islands, and the reefs provide protection from erosive waves and currents that allows the islands to form and persist. Coral sand is highly porous, and water and organic nutrients quickly leach through it. The islands' small size, low relief, and porous soil mean that, despite high rainfall, they have no running streams; rainfall percolates 1-3 meters below the ground to shallow freshwater aquifers lying above salt water.

Fumigation generally involves the following phases: First, the area intended for fumigation is covered to create a sealed environment. Next, the fumigant is released into the space to be fumigated. The space is held for a set period while the fumigant gas percolates through the space and acts on/kills any infestation in the area. Finally, the space is ventilated so that the poisonous gases are allowed to escape from the space, rendering it safe for humans to enter.

Today the water percolates through the landslide debris to form the source of the Doye. In dry summers the level of the lake can fall by 5m, whereas during wet periods, the level can rise to a point where the water also flows out towards Saint-Germain-de-Joux and Bellegarde-sur-Valserine, at the other end of the water gap, via the Combet stream, which flows into the Semine then the Valserine, which flows into the Rhône.

Instead, rain water percolates through the rock, and may spend 25 years underground before emerging 50 kilometres away at Mzima. The natural filtration process gives rise to Mzima's famously clear stream, which flows through a series of pools and rapids. Two kilometres downstream from the springs, the stream is blocked by a solidified lava flow and disappears below the surface again. Mzima is one of Tsavo's most popular wildlife attractions owing to its resident populations of hippos and Nile crocodiles.

The water percolates very slowly down through the earth's surface until it reaches superheated areas deep in the crust and then rushes rapidly to the surface to emerge from the 47 hot springs. Hot Springs Creek flows from Whittington Avenue, then is underground in a tunnel beneath Bathhouse Row (Central Ave). It emerges from the tunnel south of Bathhouse Row then flows through the southern part of the city before emptying into Lake Hamilton, a reservoir on the Ouachita River.

When water percolates through waste, it promotes and assists the process of decomposition by bacteria and fungi. These processes in turn release by- products of decomposition and rapidly use up any available oxygen, creating an anoxic environment. In actively decomposing waste, the temperature rises and the pH falls rapidly with the result that many metal ions that are relatively insoluble at neutral pH become dissolved in the developing leachate. The decomposition processes themselves release more water, which adds to the volume of leachate.

The water percolates through the sand at a rate of 10 cm an hour, gradually leaving a fine film of sediment. The rapid primary filters were cleaned by an upward passage of compressed air and clean water. The compressed air broke up the surface deposit, and the water carried it away. To clean the main filter beds all the water was drained out, and the layer of sediment, with some 2 cm of sand under it, was scraped off manually.

The water which bubbles up from the ground at Bath, fell as rain on the nearby Mendip Hills. It percolates down through limestone aquifers to a depth of between and where geothermal energy raises the water temperature to between and . Under pressure, the heated water rises to the surface along fissures and faults in the limestone. This process is similar to an artificial one known as Enhanced Geothermal System which also makes use of the high pressures and temperatures below the Earth's crust.

River Bourne at Winterbourne Gunner, a typical chalk stream Chalk streams are rivers that rise from springs in landscapes with chalk bedrock. Since chalk is permeable, water percolates easily through the ground to the water table and chalk streams therefore receive little surface runoff. As a result, the water in the streams contains little organic matter and sediment and is generally very clear. The beds of the rivers are generally composed of clean, compacted gravel and flints, which are good spawning areas for Salmonidae fish species.

Lower Johnson Creek rejoins itself after forming a small island near Southeast 42nd Avenue. The watershed can be divided into two hydrologic areas with different infiltration rates. The northern area, comprising about 40 percent of the watershed, consists of the Portland Terraces, and the southern consists of the Boring Hills and the Kelso Slope. Most of the rain that falls on the northern area percolates into the ground, and most of the rain that falls on the southern area runs quickly into the creek or its tributaries.

The A.V. Club review The Village Voice likewise gave it a favorable review and said the album "percolates the same melancholy satisfaction and nervous maturity, entropy and growth, in and out--but with an urgency and impulsiveness that risks upsetting the balance".The Village Voice review E! Online gave the album a B and called it "a cure for what ails the airwaves." NME gave it a score of 7 out of 10 and said the album "sounds like a brilliant album by a lesser band".

As part of its flood control and water supply responsibilities, the Department of Public Works has 15 major dams and 27 spreading grounds in the county. Pacoima Dam is one of the largest owned by Public Works and survived the Northridge earthquake in 1994 intact. Water from the dams is released into flood-control channels and some is diverted into spreading basins where it percolates into the ground and recharges the groundwater. The surface water is not used directly as it requires more cleaning than groundwater.

In contrast, during interglacial and interstadial periods, more effective coupling occurred between the surface drainage network and the internal karst drainage system.Woodward, Hamlin, Macklin, Hughes, Lewin 2008, p. 63 Since limestone dissolves as the water percolates through its pores, an extended underground drainage system has developed, with caves and channels that enlarge with time when their roofs collapse, producing rocky exposures and perpendicular slopes, which is also the reason why the water is scarce. Only when an impenetrable stratum is met, does water appear on the surface.

With coal mining, waste materials are piled at the surface of the mine, creating aboveground runoff that pollutes and alters the flow of regional streams. As rain percolates through waste piles, soluble components are dissolved in the runoff and cause elevated total dissolved solids (TDS) levels in local water bodies. Sulfates, calcium, carbonates and bicarbonates – the typical runoff products of coalmine waste materials – make water unusable for industry or agriculture and undrinkable for humans. Acid mine wastewater can drain into groundwater, causing significant contamination.

The Mud Hole site is part of a series of submarine vents and thermal springs which produce "warm, chemically altered seawater from vents and seepage zones. The spring water apparently originates in the subsurface ocean around the Florida Platform and penetrates the highly porous strata of the platform about 500–1000 meters below sea level. It percolates toward the interior of the platform and is geothermal heated to about 40°C en route." The Mud Hole Submarine Discharge Zone is sometimes referred to as "Mud Boil".

The rain percolates through limestone aquifers to a depth of between where geothermal energy raises the water's temperature to between 64 and 96 °C (approximately 147–205 °F). Under pressure, the heated water rises to the surface along fissures and faults in the limestone. Hot water at a temperature of rises here at the rate of daily, from the Pennyquick geological fault. In 1983, a new spa-water bore-hole was sunk, providing a clean and safe supply for drinking in the Pump Room.

Soil is well developed in the forest as suggested by the thick humus layers, rich diversity of large trees and animals that live there. In forests, precipitation exceeds evapotranspiration which results in an excess of water that percolates downward through the soil layers. Slow rates of decomposition leads to large amounts of fulvic acid, greatly enhancing chemical weathering. The downward percolation, in conjunction with chemical weathering leaches magnesium (Mg), iron (Fe), and aluminium (Al) from the soil and transports them downward, a process known as podzolization.

The insulation of lanky moss prevents the roots from freezing if there is an unexpected drop in temperature. They can also help retain moisture in the soil so if there is a dry season in the forest they can help keep the trees and other plant species hydrated. Aside from water retention they can also hold large levels of nutrients. As rain percolates through the forest’s canopy, nutrients such as nitrogen flows off with the water and is immediately absorbed by the lanky moss that is growing on the forest floor.

Lake Amtkeli is fed by the Amtkeli River, but only a small part of its water percolates through the obstructing rubble back into the river. The greater part leaves the lake through underground passages to the Jampal River. Due to the lake's limited discharge capacity, its water level rises strongly during snowmelt in May, leading to annual fluctuations of up to in the lake's average height above sea level and maximal depth, and increasing its length from to . The average surface area of Lake Amtkeli is , and its drainage basin measures .

Crystal Springs and Kelley creeks contribute more flow to the main stem than the other tributaries. Fill at Foster Road and Southeast 111th Avenue usually prevents stormwater runoff from a area of the watershed in the Lents and Powellhurst- Gilbert neighborhoods from flowing directly into the creek. Instead, runoff is routed to sumps, where it percolates into the ground. Normal drainage patterns have also been altered further downstream in the Sellwood, Eastmoreland, Westmoreland, and Woodstock neighborhoods, where runoff flows into the Portland sewer system instead of into the creek.

Once the psychic is in the front, the descent becomes possible because the psychic being deepens the aspiration more and more and the divine consciousness percolates stage by stage from the superconscient to the subconscient and the inconscient. It makes a bridge between the spirit and the matter through subtle centers of energy called ‘Chakras’. The frequent phenomenon of ascent and descent makes the transformation of human nature possible. This also effectively reconciles the contradiction of spiritual and the material life, which is the cause of most of the problems in human life.

A bathtub faucet with built-up calcification from hard water in Southern Arizona. Hard water is water that has high mineral content (in contrast with "soft water"). Hard water is formed when water percolates through deposits of limestone, chalk or gypsum which are largely made up of calcium and magnesium carbonates, bicarbonates and sulfates. Hard drinking water may have moderate health benefits, but can pose critical problems in industrial settings, where water hardness is monitored to avoid costly breakdowns in boilers, cooling towers, and other equipment that handles water.

Aquifers that provide sustainable fresh groundwater to urban areas and for agricultural irrigation are typically close to the ground surface (within a couple of hundred metres) and have some recharge by fresh water. This recharge is typically from rivers or meteoric water (precipitation) that percolates into the aquifer through overlying unsaturated materials. Occasionally, sedimentary or "fossil" aquifers are used to provide irrigation and drinking water to urban areas. In Libya, for example, Muammar Gaddafi's Great Manmade River project has pumped large amounts of groundwater from aquifers beneath the Sahara to populous areas near the coast.

The first is an arid desert absolutely barren along part of the coast, between Arica and Copiapó, but with a coarse scanty vegetation near the Cordilleras along watercourses and on the slopes where moisture from the melting snows above percolates through the sand. The altiplano of the northernmost portion of the Chilean territory is home to the Browningia candelaris, a candelabrum- shaped cactus. Another cactus species, the Echinopsis atacamensis, grows in the pre-Andean area. The high Andean region is also characterized by the presence of species of the genus Polylepis and the Azorella compacta.

The hills consist of Precambrian igneous and metamorphic rock, the oldest of which are about 670 million years old. The rocks are characterised by low porosity and high secondary permeability via fissures. Malvern water is rainwater and snow meltwater that percolates through fissures created by the pressures of tectonic movements about 300 million years ago when advancing sedimentary layers of Silurian shale and limestone were pushed into and under older Precambrian rock. When the fissures are saturated, a water table forms and the water emerges as springs around the fault lines between the strata.

As snow melts and rainfall moves over and through the ground, the water picks up improperly applied insecticides and deposits them in to larger bodies of water, rivers, wetlands, or percolates in to watersheds. Researchers have also been experimenting with other methods, such as fumigation, injecting the mound, mound drenching, and surface dusting. Mound drenching entails pouring large volumes of toxic liquid into the mound. While this may affect a large portion of the mound, it is possible it may not reach the queen, thus preventing the destruction of the colony.

Precipitation and surface water leaches dissolved organic carbon (DOC) from vegetation and plant litter and percolates through the soil column to the saturated zone. The concentration, composition, and bioavailability of DOC are altered during transport through the soil column by various physicochemical and biological processes, including sorption, desorption, biodegradation and biosynthesis. Hydrophobic molecules are preferentially partitioned onto soil minerals and have a longer retention time in soils than hydrophilic molecules. The hydrophobicity and retention time of colloids and dissolved molecules in soils are controlled by their size, polarity, charge, and bioavailability.

Like other insects, grasshoppers have an open circulatory system and their body cavities are filled with haemolymph. A heart-like structure in the upper part of the abdomen pumps the fluid to the head from where it percolates past the tissues and organs on its way back to the abdomen. This system circulates nutrients throughout the body and carries metabolic wastes to be excreted into the gut. Other functions of the haemolymph include wound healing, heat transfer and the provision of hydrostatic pressure, but the circulatory system is not involved in gaseous exchange.

Some water originates as rain that flows into streams on impervious rocks on the plateau before sinking at the limestone boundary into cave systems such as Swildon's Hole, Eastwater Cavern and St Cuthbert's Swallet; the rest is rain that percolates directly through the limestone. The temperature in the caves is a constant . The caves have been used by humans for around 45,000 years, demonstrated by the discovery of tools from the Palaeolithic period, along with fossilised animal remains. Evidence of Stone and Iron Age occupation continued into Roman Britain.

As a dominant characteristic in the soil, the permafrost also influences the degree to which water percolates into the soil. Where there is a year-long permafrost, the water table is located much deeper in the soil and is less available to organisms, while a discontinuous permafrost provides much shallower access. Lakes that cover the taiga are characteristically formed by receding glaciers, and therefore have many unique features. The vast majority of lakes and ponds in the taiga ecoregion are oligotrophic, and have much higher levels of allochthonous versus autochthonous matter.

Grass lined swale collects rainwater, which then slowly percolates into the soil, where it is protected from runoff and evaporation. The 225 homes and 20 apartment units that now are the Village Homes community use solar panels for heating, and they are oriented around common areas at the rear of the buildings, rather than around the street at the front. All streets are oriented east-west, with all lots positioned north-south. This feature has become standard practice in Davis and elsewhere since it enables homes with passive solar designs to make full use of the sun's energy throughout the year.

Rainfall percolates readily into the sandy soil, recharging the aquifer and giving rise to hundreds of permanent lakes; but the sandy soil is poorly suited for cultivation, and the area is chiefly used for cattle ranching."The Sandhills". Nebraska State Historical Society. Retrieved 2010-04-24. Much of eastern Nebraska was settled under the provisions of the 1862 Homestead Act, which allowed settlers to obtain a quarter-section (160 acres, or 65 ha) of government land for a nominal fee. In the Sandhills, this was not enough land to support a family,Kay, John and Mary Findlay (1988).

Some ranching occurs in the uplands, but mostly it has been the target of residential development because of the rolling terrain, vistas, hardwood trees, abundant wildlife, and rivers and streams (the same reason early Indians camped in the area). The Hill Country areas are characterized by their porous "vugular" (honeycombed) rock, where rainwater percolates down to replenish the Edwards Aquifer. For that reason, development restrictions are in place and several endangered species are protected by the US Fish and Wildlife Service (USFWS). Interstate 35, the county's main artery, runs along the fault line dividing the two distinct regions.

These drains also provide a source of air which percolates up through the bed, keeping it aerobic. Biofilms of bacteria, protozoa and fungi form on the media’s surfaces and eat or otherwise reduce the organic content. The filter removes a small percentage of the suspended organic matter, while the majority of the organic matter supports microorganism reproduction and cell growth from the biological oxidation and nitrification taking place in the filter. With this aerobic oxidation and nitrification, the organic solids are converted into biofilm grazed by insect larvae, snails, and worms which help maintain an optimal thickness.

Below this, the coarse alluvial Bhabar zone makes the transition to the nearly level plains. Rainfall, especially during the summer monsoon, percolates into the Bhabar, then is forced to the surface by finer alluvial layers below it in a zone of springs and marshes along the northern edge of the Terai or plains. North of the Sivalik Hills, the 1,500– to 3,000-meter Lesser Himalayas, also known as the Mahabharat Range, rise steeply along fault lines. In many places, the two ranges are adjacent, but in other places, structural valleys 10–20 km wide separate them.

A schematic diagram of an undergravel filter run by both an air displacement and water pump (powerhead) One of the oldest types of filters, the undergravel filters consist of a porous plate which is placed beneath the gravel on the base of the aquarium and one, or more, uplift tubes. Historically, undergravel filters have been driven via air displacement. Air stones are placed at the base of uplift tubes which force water out of the uplift tube creating negative pressure beneath the undergravel filter plate (also called the plenum). Water then percolates down through the gravel which itself is the filtration material.

Silfra is spring fed by groundwater originating as meltwater from Langjökull, Iceland's second largest glacier, about fifty kilometres north of the Þingvallavatn Lake. In the distant past, this Langjökull meltwater ran through a river directly and unimpeded into the Þingvallavatn Lake. This river was blocked a few thousand years ago by lava flows from the Skjaldbreiður volcano causing the meltwater to pond and seep underground into the porous lava rock to form an aquifer. This water then percolates through the aquifer for thirty to a hundred years before emerging from the fissure springs in the Þingvallavatn Lake fifty kilometres to the south.

The Santa Ana River is included on the U.S. Environmental Protection Agency's (EPA) list of "304 (l) 'toxic hot spots' list of impaired waterways". In Orange County, the Orange County Water District, formed in 1932 to manage the county's groundwater, uses the treated water from upstream to recharge a massive reservoir, or aquifer, that runs roughly nine miles from Lakeview Avenue to Ball Road. The water percolates through layers of sand and gravel, which work to scrub, or purify it. There, it joins treated wastewater pumped from the Orange County Sanitation Department's state-of-the-art plant in Fountain Valley.

The problem is not only that India lacks sufficient treatment capacity but also that the sewage treatment plants that are exist do not operate and are not maintained. The majority of the government-owned sewage treatment plants remain closed most of the time due to improper design or poor maintenance or lack of reliable electricity supply to operate the plants, together with absentee employees and poor management. The waste water generated in these areas normally percolates in the soil or evaporates. The uncollected wastes accumulate in the urban areas cause unhygienic conditions and release pollutants that leaches to surface and groundwater.

The rocks are characterised by low porosity and high secondary permeability via fissures. Malvern water is rainwater and snow meltwater that percolates through fissures created by the pressures of tectonic movements about 300 million years ago when advancing sedimentary layers of Silurian shale and limestone were pushed into and under older Precambrian rock. When the fissures are saturated, a water table forms and the water emerges as springs around the fault lines between the strata. Depending on rainfall, the flow can vary from as little as 36 litres (8 gallons) per minute to over 350 litres (77 gallons) per minute.

The waste water generated in these areas normally percolates into the soil or evaporates. The uncollected waste accumulates in the urban areas causing unhygienic conditions and releasing pollutants that leach into surface and groundwater. A 1992 World Health Organization study reported that out of India's 3,119 towns and cities, just 209 have partial sewage treatment facilities, and only 8 have full wastewater treatment facilities. Downstream, the river water polluted by the untreated water is used for drinking, bathing, and washing. A 1995 report claimed 114 Indian cities were dumping untreated sewage and partially cremated bodies directly into the Ganges River.National Geographic Society. 1995.

Coastlines that are protected from waves and winds will tend to allow finer sediments such as clay and mud to precipitate creating mud flats and mangrove forests. The shape of a beach depends on whether the waves are constructive or destructive, and whether the material is sand or shingle. Waves are constructive if the period between their wave crests is long enough for the breaking water to recede and the sediment to settle before the succeeding wave arrives and breaks. Fine sediment transported from lower down the beach profile will compact if the receding water percolates or soaks into the beach.

First, the city applies treated wastewater to crops at the Lubbock Land Application Site – a site located east of the City of Lubbock. Here, 31 center-pivot sprinkler systems are used to irrigate crops with 13 million gallons of treated effluent per day. The soils and sediments of the Land Application Site act as filters as the treated wastewater percolates through the soil. To minimize contamination of the Ogallala Aquifer, groundwater is then pumped from beneath the Land Application Site to Canyon Lakes, where the water flows from one lake to the next and eventually into Yellow House Canyon, forming the North Fork Double Mountain Fork Brazos River.

Reviewing for The Village Voice in 1975, Robert Christgau found the album "functional" and satisfactory for a commercially successful jazz album: "Washington plays a warm tenor in the pop jazz tradition of Gene Ammons, but the rhythm section percolates danceably, and the result is sexy background music only superficially marred by Bob James's strings." In a retrospective review for Allmusic, Scott Yanow gave the album five out of five stars and said that it is "one of Grover Washington Jr.'s best-loved recordings and considered a classic of r&bish; jazz." He found Washington to be in "particularly creative form" and called James' arrangements "colorful if somewhat commercial".

Most fish in the upper ocean such as sardine and herring are camouflaged by silvering. The marine hatchetfish is extremely flattened laterally, leaving the body just millimetres thick, and the body is so silvery as to resemble aluminium foil. The mirrors consist of microscopic structures similar to those used to provide structural coloration: stacks of between 5 and 10 crystals of guanine spaced about of a wavelength apart to interfere constructively and achieve nearly 100 per cent reflection. In the deep waters that the hatchetfish lives in, only blue light with a wavelength of 500 nanometres percolates down and needs to be reflected, so mirrors 125 nanometres apart provide good camouflage.

Sugarcane diffusion is the process of extracting the sucrose from the cane with the use of imbibition but without the squeezing by mills. Shredded cane is introduced into the diffuser at the feed end, Hot water is poured over the shredded cane just before the discharge end of the diffuser. The hot water percolates through the bed of cane and removes sucrose from the cane. This dilute juice is then collected in a compartment under the bed of cane and is pumped to a point a little closer to the feed end of the diffuser and this dilute juice is allowed to percolate through the bed of cane.

When tropical cyclones cross land, thin layers of calcium carbonate of 'light' composition (i.e. unusual isotopic ratio of Oxygen-18 and Oxygen-16) are deposited onto stalagmites in limestone caves up to from the cyclone's path. As the cloud tops of tropical cyclones are high and cold, and their air is humid – their rainwater is 'lighter'. In other words, the rainfall contains significantly higher quantities of unevaporated Oxygen-18 than other tropical rainfall. The isotopically lighter rainwater soaks into the ground, percolates down into caves, and, within a couple of weeks, Oxygen-18 transfers from the water into calcium carbonate, before being deposited in thin layers or 'rings' within stalagmites.

A major problem with this approach was that the taste of the cloth filter - whether cotton, burlap or an old sock - transferred to the taste of the coffee. Around the same time, a French inventor developed the "pumping percolator", in which boiling water in a bottom chamber forces itself up a tube and then trickles (percolates) through the ground coffee back into the bottom chamber. Among other French innovations, Count Rumford, an eccentric American scientist residing in Paris, developed a French Drip Pot with an insulating water jacket to keep the coffee hot. Also, the first metal filter was developed and patented by a French inventor.

The provisions allow the dam to discharge water onto spreading grounds located south of the dam, which then percolates into groundwater recharge basins and is stored as part of the city's water supply. Looking on the south side of the spillway structure and channel Accumulation of debris from previous floods reduced the amount of storage capacity of the reservoir. As a result, in 1981, the Corps proposed raising the height of the dam rather than starting the expensive process of removing the build up of silt, sand, gravel and other debris. The proposal did not pass, and responsibility was redirected back to the Corps providing maintenance of the dam.

Argon at ambient temperature and pressure from the top of the cold store is compressed adiabatically to a pressure of 12 bar, heating it to around . The compressed gas is transferred to the top of the hot vessel where it percolates down through the gravel, transferring its heat to the rock and cooling to ambient temperature. The cooled, but still pressurized, gas emerging at the bottom of the vessel is then expanded (again adiabatically) back down to 1 bar, which lowers its temperature to -150 °C. The cold gas is then passed up through the cold vessel where it cools the rock while being warmed back to its initial condition.

Diego Garcia is the above- water rim of a coral atoll composed of Holocene coral rubble and sand to the depth of about , overlaying Pleistocene limestone deposited at the then-sea level on top of a seamount rising about from the floor of the Indian Ocean. The Holocene sediments are porous and completely saturated with sea water. Any rain falling on the above-water rim quickly percolates through the surface sand and encounters the salt water underneath. Diego Garcia is of sufficient width to minimise tidal fluctuations in the aquifer, and the rainfall (in excess of 102.5 inches/260 cm per year on average)Natural Resources Management Plan (2005), paragraph 2.5.2.

From about 1950 until 1963, when atmospheric nuclear testing was banned, it is estimated that several tonnes of were created. If all this extra had immediately been spread across the entire carbon exchange reservoir, it would have led to an increase in the / ratio of only a few per cent, but the immediate effect was to almost double the amount of in the atmosphere, with the peak level occurring in 1964 for the northern hemisphere, and in 1966 for the southern hemisphere. The level has since dropped, as this bomb pulse or "bomb carbon" (as it is sometimes called) percolates into the rest of the reservoir.

The mirrors consist of microscopic structures similar to those used to provide structural coloration: stacks of between 5 and 10 crystals of guanine spaced about ¼ of a wavelength apart to interfere constructively and achieve nearly 100 per cent reflection. In the deep waters that the hatchetfish lives in, only blue light with a wavelength of 500 nanometres percolates down and needs to be reflected, so mirrors 125 nanometres apart provide good camouflage. Most fish in the upper ocean are camouflaged by silvering. In fish such as the herring, which lives in shallower water, the mirrors must reflect a mixture of wavelengths, and the fish accordingly has crystal stacks with a range of different spacings.

Cerro Autana as other table-top mountains in the region is the remains of a large sandstone plateau that once covered the granite basement complex between the north border of the Amazon Basin and the Orinoco, between the Atlantic coast and the Rio Negro. The table-mountain topography is formed as water percolates along joints and bedding planes, the siliceous cement dissolves, quartzite disaggregates and large blocks collapse which accumulate in the foot of the scarps. The percolating water forms large and intricate cave systems, which frequently emerge in the scarp zone as high waterfalls.Briceño, Henry O. and Schubert, Carlos (1990), 'Geomorphology of the Gran Sabana, Guayana Shield, southeastern Venezuela', Geomorphology, 3 (2), 125-41.

Dump leaching is an industrial process to extract precious metals and copper from ores.. Dump leaching is similar to heap leaching, however in the case of dump leaching ore is taken directly from the mine and stacked on the leach pad without crushing where, in the case of gold and silver, the dump is irrigated with a dilute cyanide solution that percolates through the ore to dissolve gold and silver. The solution containing gold and silver exits the base of the dump, is collected and precious metals extracted. The resultant barren solution is recharged with additional cyanide and returned to the dump. This method of leaching is usually suitable for low grade ores because it is very low cost.

Because private maintenance efforts during the 1970s and early 1980s proved inadequate, the government initiated repair and maintenance of the falaj system to increase the quantity of water available to cultivated areas. The cooler climate on the high plateau of the Al Jabal al Akhdar enables the growing of apricots, grapes, peaches, and walnuts. The Al Batinah coastal plain accounts for about two fifths of the land area under cultivation and is the most concentrated farming area of the country. Annual rainfall along the coast is minimal, but moisture falling on the mountains percolates through permeable strata to the coastal strip, providing a source of underground water only about two meters below the surface.

Originally MICP was tested and designed for underground applications in water saturated ground, requiring injection and production pumps. Recent work has demonstrated that surface percolation or irrigation is also feasible and in fact provides more strength per amount of calcite provided because crystals form more readily at the bridging points between sand particles over which the water percolates. Benefits of MICP for liquefaction prevention MICP has the potential to be a cost-effective and green alternative to traditional methods of stabilizing soils, such as chemical grouting, which typically involve the injection of synthetic materials into the soil. These synthetic additives are typically costly and can create environmental hazards by modifying the pH and contaminating soils and groundwater.

Numerous researchers have studied the hydrodynamics of CFB (Yang, 1998; Basu, 2006; Rhodes, 2008; Scala, 2013). The fluidization is a function of several parameters such as the particles’ shape, size and density, velocity of the gas, beds' geometries etc. Kunii and Levenspiel (1991), Oka and Dekker (2004), and Souza-Santos (2004) defined the regimes of fluidization as described below: (a) Fixed Bed: When the fluid is passed through the bottom of the bed at a low flow rate, the fluid merely percolates through the void spaces between stationary particles. (b) Minimum fluidization: When the gas velocity reaches (Umf) minimum fluidization velocity, and all the particles are just suspended by the upward flowing fluid.

Soil absorbs rainwater and releases it later, thus preventing floods and drought, flood regulation being one of the major ecosystem services provided by soil. Soil cleans water as it percolates through it. Soil is the habitat for many organisms: the major part of known and unknown biodiversity is in the soil, in the form of invertebrates (earthworms, woodlice, millipedes, centipedes, snails, slugs, mites, springtails, enchytraeids, nematodes, protists), bacteria, archaea, fungi and algae; and most organisms living above ground have part of them (plants) or spend part of their life cycle (insects) below- ground. Above-ground and below-ground biodiversities are tightly interconnected, making soil protection of paramount importance for any restoration or conservation plan.

Darent and other Rivers of Kent Orpington pond is the source of the River Cray The River Cray is the largest tributary of the Darent. It is the prime river of outer, south-east Greater London, rising in Priory Gardens, Orpington, where rainwater percolates through the chalk bedrock of the Downs to form a pond where the eroded ground elevation gives way to impermeable clay. Initially it flows true to form northwards, past industrial and residential St Mary Cray, through St Paul's Cray (where it once powered a paper mill) and through Foots Cray, where it enters the parkland Foots Cray Meadows, flowing under by Five Arches bridge (built in 1781 as part of their designs by Capability Brown). It then flows by restored Loring Hall (c.

The amount, location, and timing of water reaching a drainage channel from natural precipitation and controlled or uncontrolled reservoir releases determines the flow at downstream locations. Some precipitation evaporates, some slowly percolates through soil, some may be temporarily sequestered as snow or ice, and some may produce rapid runoff from surfaces including rock, pavement, roofs, and saturated or frozen ground. The fraction of incident precipitation promptly reaching a drainage channel has been observed from nil for light rain on dry, level ground to as high as 170 percent for warm rain on accumulated snow.Babbitt, Harold E. & Doland, James J., Water Supply Engineering, McGraw-Hill Book Company, 1949 Most precipitation records are based on a measured depth of water received within a fixed time interval.

The mercaptan oxidation reaction takes place as the feedstock percolates downward over the catalyst. The reactor effluent flows through a caustic settler vessel where it forms a bottom layer of aqueous caustic solution and an upper layer of water-insoluble sweetened product. The caustic solution remains in the caustic settler so that the vessel contains a reservoir for the supply of caustic that is intermittently pumped into the reactor to maintain the alkaline environment. The sweetened product from the caustic settler vessel flows through a water wash vessel to remove any entrained caustic as well as any other unwanted water-soluble substances, followed by flowing through a salt bed vessel to remove any entrained water and finally through a clay filter vessel.

The talus, which primarily consists of Middle Stone Age deposit, rock fall and unconsolidated sediments, is stabilized by an area of large, exposed blocks (14 m²). At some stage – and in between the prehistoric occupation of the cave site – these blocks have fallen down from the rock face above, effectively preventing site erosion and allowing sediments to stabilize and accumulate in front of the cave's drip line. Calcium carbonate (CaCO₃) rich ground water seeps in from the cave roof and percolates through the interior sediments, resulting in an alkaline environment with good preservation conditions. The excavated Middle Stone Age deposit in Blombos Cave consists of aeolian (wind-borne) dune sand, blown in through the cave entrance, and roof spall from the cave ceiling.

The mirrors consist of microscopic structures similar to those used to provide structural coloration: stacks of between 5 and 10 crystals of guanine spaced about ¼ of a wavelength apart to interfere constructively and achieve nearly 100 per cent reflection. In the deep waters that the hatchetfish lives in, only blue light with a wavelength of 500 nanometres percolates down and needs to be reflected, so mirrors 125 nanometres apart provide good camouflage. In fish such as the herring which live in shallower water, the mirrors must reflect a mixture of wavelengths, and the fish accordingly has crystal stacks with a range of different spacings. A further complication for fish with bodies that are rounded in cross-section is that the mirrors would be ineffective if laid flat on the skin, as they would fail to reflect horizontally.

Carshalton Pond, London Borough of Sutton River Wandle at Beddington Park in the London Borough of Sutton In the pleistocene before the carving of the Mole Gap, water lapped the north of the area between the North Downs and Greensand Hills known as the Vale of Holmesdale taking the Caterham or Coulsdon Bourne routes, to form the much less deep Merstham Gap, a wind gap.Natural England - Geodiversity In more recent times, precipitation on the local central, small section of the long escarpment percolates through the chalk and reappears as springs in central Croydon, Beddington, and Carshalton. The occasional stream, known as the Bourne, which runs through the Caterham valley (and Smitham Bottom in Coulsdon) is a source of the River Wandle but only surfaces after heavy rainfall. A series of ditches and culverts carries the water from Purley to Croydon.

The of alluvial flats had a frontage to the Molonglo River to the south, Scott's Paddock on the West, the two huts, Woolshed and Pisa on the East and Black Mountain on the North. > SOIL: Is rich dark alluvial friable and fertile loam about deep, resting on > a gravel bed, providing good draining – liable to be inundated by the > overflow water from the Molonglo River annually, leaving a rich deposit of > alluvium, rendering it admirably suited for the growth of lucerne and corn > and comparing favourably with a great deal of the Hunter River land. The > roots of the lucerne penetrate down to the perennial water supply which > percolates through the underlying porous bed from the River and from the > Creek flowing through the centre of this area, providing natural irrigation > in the dryest season – this creek has never been known to run dry. The arable flats were valued then at 30 pounds per acre.

A birdhouse at the SJWS Sunset at the SJWS A black-necked stilt at the SJWS The San Joaquin Wildlife Sanctuary is a constructed wetland in Irvine, California, in the flood plain of San Diego Creek just above its outlet into the Upper Newport Bay. The site is owned by the Irvine Ranch Water District; it was used for farmland in the 1950s and 1960s, and (prior to its reconstruction) as a duck hunting range. Restoration of the wetlands began in 1988 and was completed in 2000.. Now, the site serves a dual purpose of removing nitrates from the creek water and providing a bird habitat. The water district also operates an adjacent wastewater treatment facility but the treated wastewater does not enter the wildlife sanctuary.. Within the sanctuary, water from the creek percolates through a system of ponds, constructed in 1997 and ringed with bulrushes; the ponds are periodically drained and re-seeded, and the surrounding land is covered with native plants.

Water stored behind San Gabriel Dam is an important source for groundwater recharge during the dry season of April through October. Water from San Gabriel, Cogswell and Morris Dams is released gradually through the dry months to spreading grounds at San Gabriel Canyon (Azusa) and Peck Basin (near Arcadia), where it percolates into the local groundwater basin. Dam operations are coordinated by the San Gabriel River Water Committee (Committee of Nine), established in 1889 to represent water-rights holders on the San Gabriel River and with rights to of river water; and the San Gabriel Valley Protective Association, which has rights to all water flows above 97,700 acre- feet as well as all storage space in San Gabriel, Cogswell and Morris Dams. View of a nearly full reservoir in 2011 from the north, with the dam and spillway in the background The large reservoir, known as San Gabriel Reservoir No. 1, is nearly long when full.

Modern languages have a specialized structured construct for exception handling which does not rely on the use of `GOTO` or (multi-level) breaks or returns. For example, in C++ one can write: try { xxx1 // Somewhere in here xxx2 // use: throw someValue; xxx3 } catch (someClass& someId) { // catch value of someClass actionForSomeClass } catch (someType& anotherId) { // catch value of someType actionForSomeType } catch (...) { // catch anything not already caught actionForAnythingElse } Any number and variety of `catch` clauses can be used above. If there is no `catch` matching a particular `throw`, control percolates back through subroutine calls and/or nested blocks until a matching `catch` is found or until the end of the main program is reached, at which point the program is forcibly stopped with a suitable error message. Via C++'s influence, `catch` is the keyword reserved for declaring a pattern-matching exception handler in other languages popular today, like Java or C#. Some other languages like Ada use the keyword `exception` to introduce an exception handler and then may even employ a different keyword (`when` in Ada) for the pattern matching.