How To Use Silt In A Sentence

  • Through the logging practice streams silted up, and the waters were warmed to a level unsuitable for the survival of fry.
  • Season of the Inundation: Sweet, black silt mingled with holy myrrh, melilot, hyssop, spikenard, balsam, cedar, and a hint of melting snow from the Abyssinian hills. Thor's Day
  • This can be very important since some fish will inhabit silty area in preference to hard bottoms.
  • The Gonubie River does not have a typically big flushing flow while silting in Transkei rivers is a result of ‘poor land use practice’.
  • The tuffs are associated with subordinate sandstones and siltstones and minor lava.
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  • The mountainous Mid-Coastal Sedimentary ecoregion lies outside of the coastal fog zone and is typically underlain by massive beds of sandstone and siltstone in contrast to the volcanics of Ecoregion 1d. Ecoregions of Oregon (EPA)
  • The silt is the next heaviest particle, and should settle during the next four hours.
  • Yesterday at low tide, silt shut the slough like trap, and mud stranded boats on docks perched high above water.
  • Bogs and glacial recessional lake deposits frequently contain compressible deposits of peat and organic-rich silt.
  • Solemn straight hair, eyes like silty ocean water. The Bird House
  • The freezing and thawing action on clay, silty clay, and silty clay loam soils tilled in the fall or winter to produce stale seedbeds usually have excellent seedbeds for early no-till spring planting.
  • The food was a mixture of commercial tropical fish food, commercial guinea pig chow, freeze-dried tubifex worms, finely sifted silt, and puppy vitamins.
  • One intact wreck is of a Firefly aircraft lost in 1956 after a mid-air collision and found recently in silty water.
  • Maybe you should re-spike your studs to your silt, because they were wobbly in the first place.
  • The sediments comprise silts, sand, gravel and, often lenticular, silty clay, comparable with similar sediments in the Petrockstowc basin, where the bulk of the deposits are Eocene.
  • I am here concerned mainly with claims for damage caused by the deposit of silt on the bed of the river in sufficient quantities to interfere with navigation and the use of facilities such as slipways and moorings.
  • Loam is a soil with roughly equal proportions of clay, sand and silt.
  • The sediments include lacustrine freshwater limestones, silts, marls, occasional sands and local lignite.
  • The river silted up
  • The silt shallowed the canal
  • Without grinding, new fine silt is not there to replace what's been removed in the crops. Secrets of the Soil
  • A hatchway between leads back into the forecastle, a tight and very silty space should you feel inclined to explore.
  • Careful studies of silt prove beyond doubt that its primal cause is the removal of the forest cover, such as underbrush, weeds, and grasses, along the streams, which allows the rainfall to run off rapidly. McClure's Magazine, Vol. XXXI, No. 3, July 1908.
  • He heard waves pounding in his ears, the soft gurgle beneath the waves, the silty sound of sand being moved within hidden currents.
  • Loam is a soil with roughly equal proportions of clay, sand and silt.
  • I am simply saying that it would be fitting and right for those responsible for the damages caused — I do not care whether those damages be in terms of silted streams, scarred landscapes, or in lost livestock — to take full responsibility for them. Bush Administration v. Environmental Groups
  • You have loam and we have river bed sand and decomposed granite and perhaps silt from the river. Bapteme - French Word-A-Day
  • This development has resulted in extensive denudation of these catchment areas and an attendant loss of vegetative cover on the steep slopes, an increase in the incidence of landslides, soil erosion, and siltation of drainage systems in the valley bottoms and ultimately, increased incidence of flash flooding. Water profile of St. Lucia
  • But, as the main waterways became silted up and were impoldered, the character of the city changed.
  • I climbed over massive flat pavements of grey silty sandstone, making the whole cliffside seem like the world's largest amphitheatre.
  • The mood lightened, but the word “blackmail” hung in the air, dark and silty. The Bird House
  • He conjured up a vision of this strange forgotten kink in the world's littoral, of the long meandering channels that spread and divaricate and spend their burden of mud and silt within the thunderbelt of Atlantic surf, of the dense tangled vegetation that creeps into the shimmering water with root and sucker. Tono Bungay
  • Aerial surveys revealed that a small Rhine tributary had once carved an island here, and the silted channel was promptly dredged.
  • There is, however, with us, an inclination to apply this word particularly to those purer and more compact sorts which are adapted for fuel, while to the lighter, less decomposed or more weathered kinds, and to those which are considerably intermixed with soil or silt, the term muck or swamp muck is given. Peat and its Uses as Fertilizer and Fuel
  • As they'd noted, this area had a somewhat disused look to it, for the floor was covered with a conglomeration of dirt, guano and silt interspersed with crumbling bits of masonry or fallen pillars.
  • Angular depressions at the base of siltstone laminae represent casts of halite that was dissolved by lower-salinity waters that introduced silt.
  • Silt levels in Sligo Harbour have been cause for grave concern in recent years, and the current levels mean the port may soon become unnavigable.
  • Aaron Slate, phyllite, metasiltstone, metatuff, felsic volcanic rocks, and Virgilina Greenstone underlie Ecoregion 45c in Virginia. Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA)
  • The fossiliferous horizons occur in greenish to greyish siltstones and brown to black fissile shales associated with mollusc shells.
  • Unprotected manholes can fill up with silt, as can associated piping.
  • It will have a cutaway section so you can see how the crater was originally shaped because it's got a lot of silt and infill in it - 50,000 years is a long time.
  • It was then a coastal city, on a gulf now filled in by silt, in a region known as Ionia. Euclid’s Window
  • Silt, washed from deep forestry ploughing, smothers plants, endangering insect life and therefore fish survival also.
  • The sediments include lacustrine freshwater limestones, silts, marls, occasional sands and local lignite.
  • This was Goat Island, created of silts and clays that had originally lain on the bottom of the vanished Lake Tonawanda.
  • I also do not expect the flood pathway stories to tell that the flood eroded, in several days, 50 cubic miles of basalt and silt that resulted in deep vertical-walled coulees with flat bottoms.
  • Further back, the port side of the deck is low in the silt and either the hold coamings are offset to starboard or the forward mast is offset to port.
  • The lower (Permian) unit consists of glacio-marine sequences including tillite, sandstone, siltstone, mudstone and limestone horizons. Tasmanian Wilderness, Australia
  • Cystadenoma adenoma tissue as a result of glandular secretions of siltation, glandular cavity gradually integrating into the expansion and size of cysts, hence the name.
  • Dying fish and marine plants expired in the centre of the roadways, and huge banks of black sludge were silted up into the gutters and over the sidewalks, but fortunately the escaping waters had cut long pathways through them. Ballardian » Simon O’Carrigan’s The Drowned World
  • The hook type do not work in the soft silt of most coarse fish waters.
  • Cold dry periods, glacier expansion and crop failures between 5,800 and 4,900 years ago resulted in deforestation, flooding, silting of irrigation channels, salinisation and the collapse of the Sumerian city states.
  • The fine sandy and silty loams are formed from weathered Oligocene and Miocene sandstone (Ogallala and Arikaree Formations, and upper White River Groups). Ecoregions of Wyoming (EPA)
  • There are no open drains, fortunately, or they'd be silted by now.
  • I love shallow, weedy, silted up estate lakes to pursue crucian carp, tench, bream and carp and I love the sort of creeping and crawling tactics needed to get within inches of the fish.
  • Devices called silt curtains will contain particulates. The Scientist
  • According to mine coal silt water warehouse loader in the mine working condition, size reduction and lower costs on the premise that we have devised a kind of brake device driven by hydraulic engine.
  • A stone basin, sealed with pitch, was added later, to combat the problem of silting, and this provided drinking water for ships; it also powered a small waterwheel used to raise water from the basin.
  • Among the most brilliant of these is 'Berns', created for Lars Siltberg's 'Candleflames Modulated' (2007), exploring frequency extremities with visceral sheets of blackened noise, near infrasonic subbass and vastly unsettling use of psychoacoustic space. Boomkat: Just arrived
  • Beneath the shallow turf line the loose stoneless silt loam contained slight iron staining and abundant molluscs.
  • The other seven tanks were also desilted and water level rose in the surrounding areas.
  • As the level of the reservoir falls, it reveals mud several feet deep, silt deposited from upstream.
  • At the back is a bank of fine silt that is invariably stirred up by the first few divers who venture inside, so try to be first there if you can!
  • In spring and summer we would pick mussels, cockles and winkles round the ‘glar’ or silt mud in the harbour.
  • Flowing water may have deposited sand and silt in the bottoms of lakebeds or oceans.
  • The Kirkland silt loam soil at the wheat pasture research unit is typical of much of the cropland in north central Oklahoma.
  • Silt and varved clay, probably deposited during the last stages of Pleistocene glaciation, cover the entire floor.
  • Removal of water from compressible materials such as silt and clay can lead to compaction of the confining unit and subsidence of the land surface.
  • The lake was almost solid with silt and vegetation.
  • In the surrounding countryside, at least a dozen cows and sheep lay dead, covered by the silty grey material that began spewing on August 4 from the crater, obscured from view by a shroud of dark clouds.
  • Two intercrop patterns and sole crops of mustard (Brassica hirta Moench) and sunflower (Helianthus annuus L.) were planted in 1988 and 1989 on a silt loam soil to examine mechanisms for overyielding in this intercrop system. 1. Green manure crops in irrigated and rainfed lowland rice-based cropping systems in south Asia.
  • Finally, many forms of silt derive from the wreck itself, including rust particles, carpet fibres, coal dust, hardboard, wood and expanded foam panels, and oil/fuel residues.
  • Lying between two rivers the meadow is sometimes flooded in winter which deposits fertile silt and inhibits frost. A Guide to Britain's Conservation Heritage
  • These soils are moderately deep to deep, well-drained loam or silt loam surface soils with loam or silty clay loam subsoils, formed primarily in sandstone residuum.
  • A minibus taxi overturned on Hospital Bend, where northbound lanes were awash in a river of brown, silt-laden water.
  • Running aground occurs when the navigator misreads the chart, the skipper tries to cut a corner on a harbor entrance, there is silting moving of soft sand and mud at a harbor mouth, or the tide table is misinterpreted. Sailing Fundamentals
  • We are mere mortals, who are we to say there are not creatures living in the deep silts below.
  • silty soil
  • They carry silt from the Mississippi River that replenishes the delta and keeps the coastland above the water line, creating a gradual buffer from the sea.
  • The fossils are found in siltstone and mudstone under limestone.
  • During heavy monsoon downpours, the bunds naturally breached causing silt formation in tanks.
  • Almost half the reserve area is formed of marismas - freshwater marshes on accumulated clayey silt - where the Guadalquivir river delta has been deflected and ponded by a coastal sand spit (~27,000 ha). Doñana National Park, Spain
  • The Foss currently contains a good population of fish including brown trout, dace, chub, roach and barbel, although in places natural habitat is very limited and there are localised problems with silt.
  • In addition to filling up the lakes and making less room for vendace to live, when you get a storm and the wind churns the water around it deposits the silt on the beds where the fish are spawning and blankets them.
  • The soil is a silty clay loam with 3.1% organic matter.
  • The canyon system cuts down through marine sandstone, siltstone and dolostone.
  • The formation is composed of red siltstones, containing discontinuous calcrete horizons, channelized sandstones and thin beds of current-rippled fine sandstone.
  • On Mars, NASA's robot rover Spirit is spinning its wheels on the soft shoulder of planetary exploration, up to its axles in silt millions of miles away from tense engineers who are struggling to extricate it by remote control. POLITICAL HOT TOPICS: July 17, 2009
  • These soils are moderately deep to deep, well-drained loam or silt loam surface soils with loam or silty clay loam subsoils, formed primarily in sandstone residuum.
  • Season of the Inundation: Sweet, black silt mingled with holy myrrh, melilot, hyssop, spikenard, balsam, cedar, and a hint of melting snow from the Abyssinian hills. Thor's Day
  • Nay, farther," continued Mr. Silton, "there are two distinct sorts of what we call bashfulness; this, the awkwardness of a booby, which The Man of Feeling
  • The sand has silted up the mouth of the river.
  • A puff of fine silt draws my attention to a squat lobster darting back into a crack in the rocks.
  • There is a large amount of debris and silt in the central valley gutter and this requires cleaning as soon as possible, since as we discuss later, there appears to have been problems with rain water penetration through the gutter system.
  • The beach garland is sunburned, a silt shopworn, hot, as well as full of waste -- no place for upon foot barefoot. Archive 2009-11-01
  • When I catch up, the llamas are grazing above a deep valley whose every foot of silt has been terraced for farming.
  • Few soils contain the 40 percent clay to qualify as true clays; few are pure silts or pure sands.
  • They are only up to five millimetres long and burrow into the silt in tiny pods.
  • One was said to be up to his shoulders in sand and silt. The Sun
  • Apparently, the dam is already under a lot of stress because of all the silt that the river carries that it used to dump on the floodplain. Day in the Life of an Idiot
  • Many of the landslips and landslides, and the silt that has covered paddocks, are not covered by any form of insurance.
  • The red siltstone most likely represents deposition in shallow lacustrine and sabkha environments.
  • Volcanic ash silted up the Columbia River 35 miles away.
  • Sixty thousand cubic yards of silt and sand is to be removed in the inner-harbor dredging, which is expected to cost about $2 million. The Patriot Ledger Home RSS
  • These include running off large volumes of silt-laden water during the flood season, from May to September.
  • The second frac resulted in the placement of 68 tonnes of proppant in a silty interval of the formation containing thin interbeds of sandstone at a depth between 1850 and 1900 meters. Undefined
  • But there are concerns that the proposal could cause channels to silt up and become less navigable for leisure craft.
  • The middle member is dominated by gray silty shale grading upwards to bioclastic siltstone interbedded with bioclastic limestone.
  • Helping children of Chernobyl SILT - While 14-year-old Nastia Tysnul of Belarus was staying with Beth Dardynski and her husband, Jim Croy, of Silt this summer, she only knew three words in English - "hungry," "music" and "TV. Glenwood Springs Post Independent - Top Stories
  • I like the flexibility an aqualung offers to get slightly lower camera angles, though I have to be very careful with my buoyancy control to avoid stirring up silt.
  • Old Goa remained the colony's capital until I759, when the Mandovi River silted up.
  • Since then, the channel shallowed and the docks silted in.
  • The bearing capacity of piles embedded in permafrost depends on the type of frozen soil (clay, silt, or sand), its temperature, and the length of pile embedment in the permafrost layer. Infrastructure and climate in the Arctic
  • As silt increasingly built up at the river mouth, large ships had to anchor further and further out at sea.
  • The plateau is capped by Pennsylvanian sandstone and shale, and lesser amounts of siltstone, conglomerate, and coal.
  • It is composed of gray carbonaceous silt-stone and three conspicuous beds of sandstone and conglomerate.
  • More specifically, this ecoregion is composed of metamorphosed Mesozoic greywacke sandstone, siltstone, and marine volcanics overlain by Miocene intrusives, Pliocene marine and terrestrial fine-grained sediments, and Quaternary lavas and pyroclastics. Southeastern Papuan rain forests
  • The fossiliferous horizons occur in greenish to greyish siltstones and brown to black fissile shales associated with mollusc shells.
  • Heavy cloudbursts over hills around the resort brought silt and mud tumbling down onto roadways, leaving motorists stranded.
  • In this hypothesis, the silts form by aeolian abrasion and attrition of sand grains and by rock-weathering processes.
  • Then, the scouring and silting characteristics of debris flow and their affecting factors including debris flow scale and local channel condition were explored by analyzing field survey data.
  • Essentially, the site is unconsolidated river silt which can present problems for multilevel buildings and will result in expensive extra foundation work.
  • The soil of all stands was a readily erodible silty or sandy loam underlain by a reddish sand and clay.
  • The results indicate a significant quantity of sand and silt in the samples consists of carbonate material, possibly comprising comminuted fossils.
  • “Quite,” Rat said as she put her hands on the silty, stony bottom and let her legs float on the gentle current. So Much Pretty
  • Alternatively, the coarser grain-sized intrusions seen at outcrop may be testimony to high flow velocities during fluidization and injection, with any finer-grained sand or silt having been elutriated from the system.
  • There must have been huge dust storms to produce the amount of wind-blown silt observed in Siberia.
  • The formation attains a maximum thickness of 160 m and contains a variety of lithologies including dolomitic limestones, tuffs, siltstones and shales.
  • The lagoon on which it was built eventually silted up and Aigues-Mortes was eclipsed as a port city by Marseilles. The Salt of the Earth
  • The limestone grades laterally into calcareous siltstone of the canyon fill.
  • A tumbling weir creates the localized conditions of an upland brook wherever it crosses a silty lowland stream.
  • The soil is a silty clay loam and located in the Finger Lakes.
  • The rounded conglomerate pebbles consist of siltstone, mudstone, wacke, granophyric igneous rocks, and various intermediate to felsic volcanic rocks, set in a matrix rich in quartz and feldspar grains.
  • Mineralization consists of quartz-albite-calcite veining with disseminated pyrite, pyrrhotite and arsenopyrite hosted in pervasively silicified, brecciated siltstone and wacke. Marketwire - Breaking News Releases
  • Season of the Inundation: Sweet, black silt mingled with holy myrrh, melilot, hyssop, spikenard, balsam, cedar, and a hint of melting snow from the Abyssinian hills. Thor's Day
  • Dust films are a light powder of clay and silt-sized particles that adhere to rough surfaces and rock fractures.
  • The water contains fine silt.
  • Edible Chenopodium, Indian ricegrass, sego lily roots, yucca, biscuit-root, bloodroot and many other nutritious and medicinal plants still grow here.27 The soil, though alkaline as short-grass soils are, has been enriched by centuries of river and creek silt deposition. Bird Cloud
  • To a significant extent the siltstone has been transformed into a plastic material, particularly near shear zones.
  • Pitt therefore based his hopes on the statesmanlike policy of the Czar, who in that month despatched to London one of his confidants, a clever but viewy young man, of frank and engaging manners, Count Novossiltzoff. William Pitt and the Great War
  • New Orleans is a city built on silt and drained marshland, positioned at the mouth of the Mississippi River.
  • Siltation is still occurring from run-off from the land.
  • A team from Tongji University has researched the possibility of converting the silt into construction materials and chinaware.
  • On their lee sides some pans have clay dunes or lunettes composed of sandy, silty, clayey, and salty materials blown out from the pan floor.
  • In the silt I join the first footprints on new land, of two deer and an otter.
  • In this type of sediment, relatively coarse sand grains are mixed with silt and clay.
  • The clasts range from angular to subrounded and show a weak preferred orientation when elongate; they include micaceous siltstone, fine-grained sandstone, tuffaceous rock, andesite and medium-grained diorite.
  • Hearts thumping, we slipped beneath the surface, anticipating a gnarly passage through silty twists and turns, with the blood roaring in our ears and pulses hammering.
  • All sites showed indications of soil slumping, and the loam to silt loam soil was derived from glacial till.
  • One was said to be up to his shoulders in sand and silt. The Sun
  • Tidal processes constantly winnow the substrate surface in the submerged mouthbar front, and resuspend mud and silt into the water.
  • The unheated soil associated with the fulgurite is a tan, sandy silt. Fulgurite - The Panda's Thumb
  • The Rexroad Formation of Pliocene age is composed of silts, sands, consolidated gravels and numerous caliche zones, and overlies the Miocene Ogallala Formation in the Borchers Badlands.
  • They are interbedded with bioturbated muddy and sandy limestones, quartz-skeletal siltstones and sandstones.
  • Other fossil seed, leaf, beetle, ostracod, snail and fish remains come from a carbonaceous siltstone that represents a local waterlogged habitat.
  • His boots tell the tale of countless treks up and down the sunbaked gravel and silt of the Gila's riverbed.
  • Substrate composition was quantified along several transects perpendicular to stream flow and classified as clay and silt.
  • Raging streams tore down fences, deposited huge logs on pasture and covered the land in thick gluggy silt.
  • The clasts range from angular to subrounded and show a weak preferred orientation when elongate; they include micaceous siltstone, fine-grained sandstone, tuffaceous rock, andesite and medium-grained diorite.
  • Some spots required engineered fill to depths of up to 3 m, but for the most part the site was composed of silty clay and fragmented rock.
  • Just 16 weeks ago, the dam was silted and full of reeds.
  • Unchecked erosion also fills riprap channels with silt and reduces the storage capacity of detention ponds via sediment deposits.
  • To the south and east this is replaced by Jurassic calcareous and micaceous siltstones and sandstones. Dong Phayayan Khao-Yai Forest Complex, Thailand
  • Dutch river bottoms and lakebeds are silty muck.
  • The term loam is applied to a soil which, from its appearance in the field and the feeling when handled, appears to be about one-half sand and the other half silt and clay with more or less organic matter. The First Book of Farming
  • By 1904, however, the artificial channel had already silted up, and a bypass had to be cut.
  • These four layers are intercalated by thick silty to sandy sequences.
  • Orientation of spectrum line is affected on silt of monochromaticity and size of CCD photosensitive unit.
  • Here, along the southern border of Virginia, the Blue Ridge overthrust belt forced rocks to the east up and over younger rocks to the west; the area is underlain by the Cambrian Rome Formation that is composed of shale, limestone, siltstone, and dolomite (Virginia Division of Mineral Resources, 1993). Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA)
  • Buildings and artefacts from different periods had been waterlogged and covered in silt, which acted as a perfect preservative.
  • The sedimentary lenses are composed of limestone, sandstone, siltstone, mudstone, shale, chert and well-bedded calci-turbidite.
  • The silt from the estuary had suddenly given way to the deep blue of the sea. Jean-Marie Gustave Le Clézio - Prose
  • David Bergman, MAC officer in charge, said village elders were able to see for themselves that the creek had silted up from a long-term blockage to the drain that goes under the runway. Latest Articles
  • The textures of soils reflect the proportion of sand, silt, and clay sizes within that portion of an inorganic soil fraction that is less than 2 mm.
  • Loam is a soil with roughly equal proportions of clay, sand and silt.
  • Fossils, he claimed, were the remains of once-living organisms, turned to stone inside layers of silt or sand deposited by water.
  • Accumulations of trash and silt should be near the primary element.
  • It will have a cutaway section so you can see how the crater was originally shaped because it's got a lot of silt and infill in it - 50,000 years is a long time.
  • I descend through the green globs of the algal bloom, then into bottom visibility clouded by fine silt lifted by the tide.
  • Rapid siltation at Aswan is also a major ongoing problem.
  • Sa saad selle camerata Kesselring, selle monumendi, mida ootad meilt, itaallasilt kuid kivi, millest see ehitada valime meie. Tatsutahime Diary Entry
  • During cold glacial times, desert regions become more arid and the production of silt increases and its transportation is enhanced.
  • The fine sand and silt size fraction comprised decayed plant material, pollen, occasional chitin fragments, clay aggregates, diatoms and fine silicates.
  • Local people cultivate tapioca, rice and vegetables on the heavily silted riverbed.
  • The canyon fill passes conformably upward into limestone and calcareous siltstone and sandstone of the Wonoka Formation.
  • Leech demands exceeds supply leech renown bloodsucker, have broken blood, pursue action of silt, stimulate the menstrual flow.
  • The MDRS is a semi-arid desert with "greenish, grey or light gray mudstone, limestone, siltstone and sandstone, partially inter-bedded by white sandstone layers". Mars Explorers May Use AI to Become 'Cyborg Astrobiologists' | Universe Today
  • MOLASSES: A product of the sugar industry, this improves compressive strength and reduces capillarity, A quatity of 5% is suitable for sandy and silty soils. Chapter 11
  • No one told us how they were shaped as silt deposits, called loess, that blew in from the Missouri River floodplain, beginning about 30,000 years ago.
  • There was no damage to the property but a lot of fine silt mud was left.
  • Although shale is common, there is a mixture and interbedding of geologic materials, including cherts, siltstone, sandstone, quartzose limestone, and in Alabama some slate, quartzite, and metasiltstone. Ecoregions of Alabama and Georgia (EPA)
  • The Allouez Conglomerate is composed mainly of red-colored clastic rocks with lesser amounts of sandstone and siltstone.
  • Because the depth is always just slightly over your head you never get into areas where someone has stirred up a bunch of silt from the bottom. Las Estacas - Riverside Aquatic Park In Morelos
  • Flowing water may have deposited sand and silt in the bottoms of lakebeds or oceans.
  • The moat was clogged with debris and weeds, silted and foul-smelling. HERE BE DRAGONS
  • These early ditches had silted up a number of times and at one stage, metalworking had taken place in the sheltered area provided by the ditch banks.
  • The climate was cooler than today but warmer than a full glacial, with sand and silt forming in shallow, flowing water in the form of sheet-wash or in ephemeral channels.
  • Reddish-brown siltstone and fine-grained sandstone of the Organ Rock Tongue form the lower slopes of the hill and part of the nearly vertical wall above the lower slopes.
  • The rocks are glacial lake beds of dark gray silt, clay, and peat.
  • It is largely underlain by interbedded Pennsylvanian sandstone, shale, and siltstone. Ecoregions of Arkansas (EPA)

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