Arizona State University geologist Philip Christensen believes that the layers may represent deposits in an ancient lakebed. |
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By the Miocene, whales of both lineages are relatively common fossils in many marine deposits. |
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It is also an important accessory mineral in most mineral deposits formed from high-temperature fluids. |
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The regionally immense deposits of rich loess soils, for example in the Midwest, are also of aeolian origin. |
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Some ore deposits occur in alkalic ultrabasic rocks derived from the Earth's mantle. |
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Some of these low-lying areas, with waterlogged deposits blanketed by alluvium, have provided good evidence for Roman farming. |
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Those deposits can be in Kuwaiti dinar or other foreign currencies, and offer monthly, quarterly, half-yearly, and yearly returns. |
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The shallow soils are derived from fluvial gravel overlain by multiple ash deposits and aeolian dust. |
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In spite of this, incidences of fraud are still emerging in all business areas, including bills, bank acceptance, deposits and loans. |
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This is a condition in which fatty deposits are laid down in the walls of arteries, which are less elastic and weaker as a result. |
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In addition to that, Mr. Sathe had investments in fixed deposits amounting to Rs. 5 lakhs. |
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Today, they form large deposits of white chalky material, which is mined for use in cleansers, paints, filtering agents, and abrasives. |
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Around the world, 70 percent of uranium deposits are located on aboriginal land. |
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Instead, they will charge foreign residents a withholding tax on bank deposits. |
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Above these sedimentary rocks is a sequence of interbedded alluvial floodplain deposits and palaeosols. |
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One, a 20 year old female, had deposits in the brain, liver, lung, bone marrow, adrenal glands, and ovaries. |
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If it's a bank or credit card statement, reconcile it against your receipts, payments and deposits to ensure that it is spot-on. |
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Synorogenic flysch deposits were laid down in front of the advancing allochthonous complexes, and were overridden by them. |
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Bogs and glacial recessional lake deposits frequently contain compressible deposits of peat and organic-rich silt. |
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Shock and disbelief were writ large on the faces as irate depositors thronged the bank's Sector 8 branch to know the status of their deposits. |
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The confusion can be traced to the uniformitarian expectations that the deposits were laid down over eons of time. |
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The residents claim that fish caught in local waters are tainted with oil deposits from the refinery. |
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One theory proposes that these deposits are the feeders for nickel sulphide deposits in komatiitic formations. |
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Extraction began in 1864 in California and Nevada, after commercially workable deposits were found in alkaline desert marshes. |
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Creationists say that the Flood scraped away these deposits, before redepositing the other sedimentary lawyers. |
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A flabby waist and love handles are the result of fat deposits in the oblique area. |
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You don't have to fork out any hefty deposits or key money either, which is nice. |
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For most large deposits of agate or silicified wood, silica was derived from the decomposition of volcanic rocks. |
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Major valleys cutting the volcano's flanks have been partly or completely filled in by pyroclastic flow deposits and lahars. |
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The fossil-bearing chalk deposits were laid down as ocean-floor ooze hundreds of kilometers from the waterways shores. |
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These deposits are visible to a doctor who looks inside the eye as small yellow spots known as drusen. |
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Aussies with enough money are already putting deposits down for a vehicle which will not be available for several years. |
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Gout is caused by deposits of uric acid in joints of the feet or ankles, that lead to inflammatory arthritis. |
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For security reasons, however, the exact location of the deposits is kept secret for the time being. |
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Shampoos that contain jojoba oil or tea tree oil help eliminate oily deposits and reduce shedding. |
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As carbonate rocks weather, the insoluble fractions are introduced into the cave deposits. |
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These units are conformably overlain by fluvial and lacustrine volcaniclastic deposits, tuffs and hyaloclastites. |
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The lymphatics or lacteals blocked with fat deposits are seen on electron microscopy on small bowel endoscopic biopsies. |
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These deposits are intimately associated with the porphyric parts of intermediate to acid plutons in orogenic belts. |
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These pioneer prospectors practiced surface mining, obtaining gold from the alluvial deposits called placers. |
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Black deposits of mercuric sulphide were evident upon microscopic examination with white light. |
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Subsidence sinkholes are diagnostic landforms of karst, which form in unconsolidated soils or drift deposits overlying cavernous limestone. |
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The locations in the Earth's crust where these accumulations occur are collectively referred to as orebodies, ore reserves, or ore deposits. |
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The sequence overlies Upper Triassic to Upper Cretaceous rocks and locally covers Palaeogene karst bauxite deposits. |
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Asbestos and asbestiform minerals may occur as a natural accessory mineral in other industrial mineral deposits or rocks. |
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Alpine-cleft deposits develop in an existing open gash in which hydrothermal fluid infiltrates and recrystallizes the surrounding rock. |
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During copulation, he deposits sperm into her sperm receptacle and places a plug in it, perhaps to retain his sperm or prevent other males from mating with her. |
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Steve Ferrani, who uses an interactive teller at least once a week for his business deposits, appreciates the longer hours. |
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So adipocere may be from white muscle deposits close to the red muscles. |
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Large depositors account for a tiny fraction of all Cypriot bank accounts, but more than half of all Cypriot bank deposits. |
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On Earth deposits of windblown sediments can be hundreds of meters thick. |
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Decide things early, and put deposits down on things as soon as you can. |
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A further part deals with deposits associated with alkalic magmatism. |
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He then deposits the carcass back in the woods, where Mother Nature takes care of the cleanup. |
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Order shrimp and you'll find it stuffed with chipotle-seasoned crab, and the chicken comes with more forest mushrooms and melted deposits of queso fresco. |
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The coal ash deposits have heavy concentrations of hexavalent chromium, a carcinogen. |
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Using vinegar to break up the calcium carbonate deposits in your coffee maker? |
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A new set of non-stick cookware is a boon for any housewife as it means a goodbye to all those grease-stained kadais and pans stuck with food deposits. |
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Others soon followed, industrializing it and sinking shafts to deposits of iron and other metals that could be alloyed to make tools for the Federation war machine. |
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Roses and cynipid galls occur along the banks of the Severn River above the tree line because of clay deposits, heat, and rafts of vegetation carried north by the river. |
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It has been observed as an uncommon accessory mineral in some contact metamorphic deposits and is reported as a rare constituent of some carbonaceous chondrite meteorites. |
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Agha Abedi, the Pakistani founder of Bank of Credit and Commerce International, arranged hunting outings for the sheikhs in return for walloping bank deposits. |
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Where the limestone has been cut by Late Tertiary veins, it has been recrystallized and slightly mineralized but contains no commercial ore deposits. |
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The next question is whether this triggers a bank run, with foreign deposits fleeing the country. |
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Before 2010, the bank essentially turned a blind eye to large cash deposits and withdrawals, which cost them dearly. |
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Water-transported sediments formed alluvial fan deposits that were laid down on essentially flat-lying volcanic flows by streams flowing toward the center of the rift basin. |
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Steel wool and wire brushes should not be used to clean surfaces to be finished with water repellent preservatives since small iron deposits may be left behind. |
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Bacterial attachment to inanimate surfaces generally requires that a surface be conditioned by organic deposits, such as collagen, laminin, fibrin, and fibrinogen. |
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It is believed that many drumlins were formed when glaciers advanced over and altered the deposits of earlier glaciers. |
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The water thus gradually deposits the sediment as it runs, creating an alluvial plain. |
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Meanwhile, meltwater within and beneath the ice leaves stratified alluvial deposits. |
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Some kames form when meltwater deposits sediments through openings in the interior of the ice. |
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These eolian loess deposits may be very deep, even hundreds of meters, as in areas of China and the Midwestern United States of America. |
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Alluvial gold deposits could be worked and the gold extracted without needing to crush the ore. |
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The legend of the golden fleece may refer to the use of fleeces to trap gold dust from placer deposits in the ancient world. |
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During the 19th century, gold rushes occurred whenever large gold deposits were discovered. |
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Significant deposits are located in Australia, China, Ireland, Mexico, Peru, Portugal, Russia, and the United States. |
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Large deposits are in Australia, Canada and the United States, with the largest reserves in Iran. |
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Most true silver deposits, as opposed to argentiferous deposits of other metals, came from Tertiary period vulcanism. |
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In Central Asia, Tajikistan is known to have some of the largest silver deposits in the world. |
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The Ruabon area was once heavily industrialised with large deposits of iron, coal and clay. |
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In both middens, the shell layers were underlaid and overlaid by nonshell cultural deposits. |
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Periglaciation in the Eastern Drakensberg and Lesotho Highlands produced solifluction deposits, blockfields and blockstreams, and stone garlands. |
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Banks began to fail as debtors defaulted on debt and depositors attempted to withdraw their deposits en masse, triggering multiple bank runs. |
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Heading west, the coast is an expanse of alluvial deposits stretching to the mouth of Glamorgan's most well known river, the River Taff. |
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At their mouths there are typically rocks, bars or sills of glacial deposits, which have the effects of modifying the estuarine circulation. |
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Large gravel deposits are a common geological feature, being formed as a result of the weathering and erosion of rocks. |
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Sand deposits in some areas contain garnets and other resistant minerals, including some small gemstones. |
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When geological deposits of mud are formed in estuaries the resultant layers are termed bay muds. |
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Peat deposits are found in many places around the world, including northern Europe and North America. |
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The North American peat deposits are principally found in Canada and the Northern United States. |
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Because they are easily compressed under minimal weight, peat deposits pose major difficulties to builders of structures, roads, and railways. |
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In the 19th century, the hunting of seabirds for fat deposits and feathers for the millinery trade reached industrial levels. |
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Therefore, the largest deposits of caesium are zone pegmatite ore bodies formed by this enrichment process. |
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In North America, for example, marine deposits are limited to a few exposures in the west. |
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The Triassic continental interior climate was generally hot and dry, so that typical deposits are red bed sandstones and evaporites. |
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Marine evaporites tend to have thicker deposits and are usually the focus of more extensive research. |
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Some particular deposits even show important tectonic and climatic changes. |
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These deposits also may contain important minerals that help in today's economy. |
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Halite formations are famous for their ability to form diapirs, which produce ideal locations for trapping petroleum deposits. |
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The large coal deposits of the Carboniferous may owe their existence primarily to two factors. |
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In geography and geology, fluvial processes are associated with rivers and streams and the deposits and landforms created by them. |
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Permian marine deposits are rich in fossil mollusks, echinoderms, and brachiopods. |
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Significant deposits of methane clathrate have been found under sediments on the ocean floors of Earth at large depths. |
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These widespread carbonates and other sedimentary deposits make the Cretaceous rock record especially fine. |
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Corresponding findings are from Tethys Sea deposits in northern India and Pakistan. |
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The boundary determines the ownership of seabed oil deposits and other ocean resources. |
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The very most valuable of these have been the deposits of iron ore in northwestern Sweden. |
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The gross geography of Scania reflect more the preglacial development than the erosion and deposits caused by the Quaternary glaciers. |
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Moraine may also form by the accumulation of sand and gravel deposits from glacial streams emanating from the ice margin. |
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These fan deposits may coalesce to form a long moraine bank marking the ice margin. |
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Glaciers act much like a conveyor belt, carrying debris from the top of the glacier to the bottom where it deposits it in end moraines. |
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These thick deposits accumulated as earlier Silurian rocks, uplifted by the formation of Pangaea, eroded and then deposited into river deltas. |
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There are, however, widespread glacial deposits, recording several major periods of ancient glaciation in various parts of the geologic record. |
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It is probable that any section of such an alluvial plain would show deposits of a similar character. |
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How far seaward the Roman settlement extended is unclear owing to the deposits laid down above them during later floods. |
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Two other possibilities are that end of ice age deposits either just grew too large and collapsed or they were destabilised by an earthquake. |
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The sedimentary rocks associated with continental rifts host important deposits of both minerals and hydrocarbons. |
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On the Island of Hawaii, geologists have long recognized deposits formed by glaciers on Mauna Kea during recent ice ages. |
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The latest work indicates that deposits of three glacial episodes since 150,000 to 200,000 years ago are preserved on the volcano. |
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If glacial deposits were formed on Mauna Loa, they have long since been buried by younger lava flows. |
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The wide variance is due largely to the diversity of fluid and reservoir characteristics for different deposits. |
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In common usage, deposits rich in oil are known as oil fields, and deposits rich in natural gas are called natural gas fields. |
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Amber used in antiquity as at Mycenae and in the prehistory of the Mediterranean comes from deposits of Sicily. |
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They are studied through the sedimentary deposits and the erosional and constructional landforms that individual megafloods have created. |
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Diatomites are regularly found underneath the evaporite deposits, suggesting a connection between their geneses. |
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Apart from continental sediments, rift basins normally also have part of their infill consisting of volcanic deposits. |
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When the basin grows due to continued stretching of the lithosphere, the rift grows and the sea can enter, forming marine deposits. |
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In the far north, red fox fossils have been found in Sangamonian deposits in the Fairbanks District and Medicine Hat. |
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The origin of the Sardinian ichnusae subspecies is uncertain, as it is absent from Pleistocene deposits in their current homeland. |
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In European Pleistocene deposits, remains of small cats are not common, and indicate a close relationship to the European wildcat. |
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The female deposits the eggs in a protective structure like a nest or crevice or simply on the ground. |
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Large deposits of fossil fuels are obtained from Earth's crust, consisting of coal, petroleum, and natural gas. |
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These deposits are used by humans both for energy production and as feedstock for chemical production. |
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The deep continental shelf has a floor of glacial deposits varying widely over short distances. |
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Over time these swamps became deposits of coal in the Transantarctic Mountains. |
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The resultant accumulation of various huge salt and mineral deposits about the Mediterranean basin are directly linked to this era. |
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During this period of evaporation large evaporite deposits will be made in the rift valley. |
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Later these deposits have the potential to become hydrocarbon seals and are of particular interest to petroleum geologists. |
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Atlantic Canada possesses vast offshore deposits of natural gas, and Alberta also hosts large oil and gas resources. |
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The field also magnetizes the crust, and magnetic anomalies can be used to search for deposits of metal ores. |
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Certain layered intrusions are a variety of sill that often contain important ore deposits. |
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The first is the direct geologic observation of crustal thickening and submarine deposits in Central America. |
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The deposits in the Benue Trough were displaced westwards at this time, causing subsidence of the Anambra Basin. |
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Nigeria is rich in coal deposits derived from terrestrial organic matter, most of which lie in the Benue Trough. |
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The diamictite deposits left by these glaciers form the first layer of the Karoo Supergroup, called the Dwyka Group. |
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Near the crater deposits are over fifty metres, and even five kilometres away they are still ten metres thick. |
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When the dam broke, an outburst flood swept downstream, leaving deposits as far away as Bonn. |
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Middens with damp, anaerobic conditions can even preserve organic remains in deposits as the debris of daily life are tossed on the pile. |
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Types of placer deposits include alluvium, eluvium, beach placers, and paleoplacers. |
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The hydrocarbon gases recondense as pyrolitic graphite deposits as films or sheets on the mold surface. |
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Until then, depositors would have access their insured deposits through ATMs, their existing checks, and their existing debit cards. |
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Under conditions of strong oxidation, Cd is likely to form minerals and is also likely to be accumulated in phosphate and in biolith deposits. |
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No dentulous jaws of multituberculates found in deposits of Early Cretaceous age have yet been described. |
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Trends in dominance of glaciofluvial deposits or of till and lacustrine deposits can be recognized. |
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Similar to the Weichselian glacial setting, the glacial deposits in the Saalian successions were also strongly affected by glaciotectonics. |
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Gold deposits are a mile or two under water on the ocean floor, however the deposits are also encased in rock that must be mined through. |
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First mentions of amber deposits on the South coast of the Baltic Sea date back to the 12th century. |
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Periglaciation in the Eastern Drakensberg and Lesotho Highlands produced solifluction deposits, blockfields, blockstreams and stone garlands. |
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In Europe, a major source of tin was the British deposits of ore in Cornwall, which were traded as far as Phoenicia in the Eastern Mediterranean. |
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During his tenure, he probably established the fort at Pumsaint in west Wales, largely to exploit the gold deposits at Dolaucothi. |
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It included hydraulic mining to prospect for ore by removing overburden as well as work alluvial deposits. |
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Venezuela has gold deposits, but no evidence indicates that Raleigh found any mines. |
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An attempt to establish a colony in Guiana in 1604 lasted only two years, and failed in its main objective to find gold deposits. |
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Spain also fought several wars against Chile and Peru for the guano deposits of their islands. |
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They also lost heavily in the Welsh assembly and Scottish Parliament, where several candidates lost their deposits. |
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Hemerdon Mine, east of Plymouth, has one of the largest deposits of tungsten in the world. |
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In a region short of building stone, local clay deposits and timber provided the raw materials for brick manufacture. |
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The northern boundary is less apparent but occurs where the chalk submerges below the more recent Paleocene deposits. |
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These unusual freshwater deposits in the Hangman Grits were mainly formed in desert conditions. |
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The bedrock and more recent superficial deposits are covered in part by moorland which is supported by wet, acid soil. |
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Rich deposits of iron ore are found in Cumbria and the North East, and fluorspar and baryte are also plentiful in northern parts of the Pennines. |
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Banks, however, could use book money to create deposits for their customers. |
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Historically, bank reserves have formed only a small fraction of deposits, a system called fractional reserve banking. |
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This resulted in large masses of organic material being buried under subsequent deposits such as shale formed from mud. |
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Similar deposits were found at Wytch Farm in the 1890s, but were commercially exploited until only circa 1900, and only at a low level. |
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Much of the Worsley Braided Interchange was built on undeveloped mossland where deep peat deposits had been covered with waste. |
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In addition, specialist cleaning techniques are used to remove accumulated chemical deposits which are very damaging to the building. |
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Important marl and marine-shell deposits are worked in Michigan, Virginia, and Florida. |
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Building work on the south side of the square in the late 1950s revealed deposits from the last interglacial. |
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It is estimated that South Sudan has around 4 times the oil deposits of Sudan. |
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French Polynesia's seafloor contains rich deposits of nickel, cobalt, manganese, and copper that are not exploited. |
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The central lowlands are extensively covered with glacial deposits of clay and sand, as well as significant areas of bogland and several lakes. |
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The country also has significant deposits of gypsum, limestone, and smaller quantities of copper, silver, gold, barite, and dolomite. |
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They are not legal tender within the UK but are legal currency backed by deposits at the Bank of England. |
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Kitson discovered important new deposits of manganese, used in munitions production, in the Gold Coast. |
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Further sedimentary deposits were formed through the Cambrian period, some of which metamorphosed into the Dalradian series. |
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The coal deposits of Lanarkshire, and further sedimentary deposits, date from this time. |
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The Old Red Sandstone is a magnafacies of red beds and lacustrine deposits from the Late Silurian to the Carboniferous. |
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Pitchstone deposits on the island were used locally for making various items in the Mesolithic era. |
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Oil exploration also began, with indications of possible commercially exploitable deposits in the Falklands basin. |
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In the late 1960s and 1970s, commercial paper and bank deposits began to be rated. |
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In the late 1960s and 1970s, ratings were extended to commercial paper and bank deposits. |
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However, there is no obligation on banking institutions to routinely report monetary deposits or transfers above a specified value. |
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Instead reports must be made of all suspicious deposits or transfers, irrespective of their value. |
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The oxide deposits on the bulb inner surface and reacts with hydrogen, decomposing to metallic tungsten and water. |
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The Mesozoic and Cenozoic deposits have revealed a most interesting vertebrate fauna. |
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The fertile areas are to be found in the alluvial deposits in wadis, basins, and oases. |
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Jupiter's large moon Io is volcanically active, and as a result sulfur deposits have accumulated on the surface. |
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In the late 1960s, UN geologists also discovered major uranium deposits and other rare mineral reserves in Somalia. |
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Kenya has proven deposits of oil in Turkana and the commercial viability was just discovered. |
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The retreating glaciers have left the land with morainic deposits in formations of eskers. |
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The world's largest deposits of amethysts can be found in Brazil, Mexico, Uruguay, Russia, France, Namibia and Morocco. |
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Banks of classical antiquity typically kept less in reserves than the full total of customers' deposits. |
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Britannia had large deposits of precious metals, fertile soil and vast forests, which made it economically attractive to the Romans. |
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Over millions of years, the sediment deposits added to the islands until the gaps were completely filled. |
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Fine volcanic ash is also erupted and forms ash tuff deposits, which can often cover vast areas. |
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Many valleys are littered with glacial deposits from the period of glacial retreat. |
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Surveys of the area between the two shores of the Inner Sound and Sound of Raasay have revealed 33 sites with potentially Mesolithic deposits. |
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A small and separate basin exists here where both alluvial and lacustrine deposits are recorded. |
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Wanlockhead owes its existence to the lead and other mineral deposits in the surrounding hills. |
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These deposits were first exploited by the Romans, and from the 13th century they began to be worked again in the summer. |
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Fossil remains of the wildcat are common in cave deposits dating from the last ice age and the Holocene. |
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The river valley largely comprises alluvium deposits and there are also igneous intrusions of olivine dolerite throughout the area. |
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Of the eight Scottish banks, Clydesdale had been the third largest by deposits, the North being the smallest. |
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The merged bank became Scotland's largest in terms of deposits, advances and branches. |
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During the Quaternary glaciations, Brittany was covered by loess and rivers started to fill the valleys with alluvial deposits. |
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In the extreme east of the metropolitan county there are younger deposits of magnesian limestone. |
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Future environmental impact studies should address the impact on disruption and release of methane clathrate deposits in the deep oceans. |
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The water transported the eroded deposits north and south along the outer Cape's shoreline through a process known as longshore drift. |
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The vents create sulfide deposits, which contain precious metals such as silver, gold, copper, manganese, cobalt, and zinc. |
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The deposits are mined using either hydraulic pumps or bucket systems that take ore to the surface to be processed. |
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Large mineral deposits are found in the vicinity of the batholith and these have been mined for thousands of years. |
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The mineral deposits are associated with multiple lodes and fractures that dip steeply and cut across both the granites and the country rocks. |
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Each stage is associated with different temperatures, economic deposits of different metals and different gangue minerals. |
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The West Siberian Plain consists mostly of Cenozoic alluvial deposits and is somewhat flat. |
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Many deposits on this plain result from ice dams which produced a large glacial lake. |
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Chalk deposits are very porous, so the height of the water table in chalk hills rises in winter and falls in summer. |
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Chalk as seen in Cretaceous deposits of Western Europe is unusual among sedimentary limestones in the thickness of the beds. |
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The Champagne region of France is mostly underlain by chalk deposits, which contain artificial caves used for wine storage. |
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Geologic clay deposits are mostly composed of phyllosilicate minerals containing variable amounts of water trapped in the mineral structure. |
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Primary clays form as residual deposits in soil and remain at the site of formation. |
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Clay deposits are typically associated with very low energy depositional environments such as large lakes and marine basins. |
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The soils created from these deposits support a heathland habitat which sustains all six native British reptile species. |
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Resources of energy are scarce, except in the territory of Kosovo, where considerable coal, lead, zinc, chromium and silver deposits are located. |
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Other deposits of coal, especially in Bulgaria, Serbia and Bosnia, also exist. |
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These include large deposits of oil and natural gas in Algeria and Libya, and large deposits of phosphates in Morocco and Western Sahara. |
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Iron ore deposits in Treveran territory were heavily worked and formed part of the basis for the area's wealth. |
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The bog iron deposits of Northern and Northeastern Europe were created after the Ice Age ended, on postglacial plains. |
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There are few and modest grave goods, with the weapon deposits characteristic of migration period graves completely absent. |
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Occupations by the Carthaginians and then by the Romans for her abundant silver deposits developed Hispania into a thriving multifaceted economy. |
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At present, along the Vistula valley, erosion of the banks and collecting of new deposits are still occurring. |
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Russia has a wide natural resource base, including major deposits of timber, petroleum, natural gas, coal, ores and other mineral resources. |
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Males develop calcium deposits that form bumps on their skulls as they age. |
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Avoid iron rich deposits when using a compass, for example, certain rocks which contain magnetic minerals, like Magnetite. |
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It is also among the largest producers of titanium and bauxite, a major producer of gold and has one of the world's largest deposits of rutile. |
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Sierra Leone has one of the world's largest deposits of rutile, a titanium ore used as paint pigment and welding rod coatings. |
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There are offshore gas deposits in the Atlantic Ocean that are planned to be extracted in the future. |
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By 1501, Columbus' cousin Giovanni Colombo, had discovered gold near Buenaventura, the deposits were later known as Minas Nuevas. |
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The Orinoco River deposits also contain extensive tar sands in the Orinoco oil belt, which may be a source of future oil production. |
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Portinari would refuse to return some deposits, claiming that the monies had really been invested in partnership. |
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When the crisis loomed, one way to try to avert it was to simply start reducing the interest paid on discretionary and demand deposits. |
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The bank's heavy leverage of their deposits meant that setbacks could be quite sudden. |
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Accounts with the Medici were kept secret and generally free from prying, ecclesiastical eyes, especially in the case of discretionary deposits. |
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Sedimentary deposits in the form of silt, peat, sand and mud are mostly found in the river valleys. |
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Very few mineral deposits of Buru have industrial value, and only limestone is mined commercially. |
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The rich deposits of silver, particularly in Zacatecas and Guanajuato, resulted in silver extraction dominating the economy of New Spain. |
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It has deposits of gravel and sand, along with the Cementos Apasco factory. |
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These include dedicatory caches and other ritual deposits, shrines, and burials and their associated funerary offerings. |
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The mountains contain relatively unexploited deposits of gold, silver, iron, and coal. |
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There are extensive deposits of bauxite along the west or Gulf of Carpentaria coast. |
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During the 17th century the first deposits of iron and copper ores, mica, gemstones and other minerals were discovered in the Ural. |
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In 1745 gold was discovered in the Ural at Beryozovskoye and later at other deposits. |
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Some of the deposits, such as the magnetite ores at Magnitogorsk, are already nearly depleted. |
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Merchant Stroganovs, who explored Ural deposits, requested the Cossacks punish the Siberian Tatars. |
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Mining is a traditional economic activity for the state, with deposits making it one of the world's richest areas in the past. |
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Despite huge deposits of these natural resources, the mining industry in Nigeria is still in its infancy. |
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These overlie oil and natural gas deposits, especially north of the Los Bajos Fault. |
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During weathering, iron tends to leach from sulfide deposits as the sulfate and from silicate deposits as the bicarbonate. |
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Ore deposits are classified according to various criteria developed via the study of economic geology, or ore genesis. |
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Famous examples of redox conditions affecting geological processes include uranium deposits and Moqui marbles. |
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The United States also contains several smaller deposits of anthracite, such as those historically mined in Crested Butte, Colorado. |
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All commercial potash deposits come originally from evaporite deposits and are often buried deep below the earth's surface. |
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One of the world's largest deposits, 140 to 150 million tons, is located in the Tigray's Dallol area. |
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Over time, as the surface of the earth changed, these deposits were covered by thousands of feet of earth. |
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Sintering happens naturally in mineral deposits or as a manufacturing process used with metals, ceramics, plastics, and other materials. |
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After 1900 smaller deposits near Dombrovo, Zabaikal and Cheremkhovo in Siberia were opened. |
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During summer, surface deposits could be worked, but some placer deposits were buried too deeply for surface placering. |
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Gold has been mined from placer gold deposits up and down the state and in different types of environment. |
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Some toll collection points are unmanned and the user deposits money in a machine which opens the gate once the correct toll has been paid. |
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Flysch deposits in the Southern Alps of Lombardy probably occurred in the Cretaceous or later. |
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The cinnabar deposits in Slovenia are a notable source of cinnabar pigments. |
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During 2,000 years of levee construction, excessive sediment deposits have raised the riverbed several meters above the surrounding ground. |
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These deposits elevate the riverbed which flows between natural levees in its lower reaches. |
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Further hematite deposits were discovered, of sufficient size to develop factories for smelting and exporting steel. |
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Soon after the abbey's foundation the monks discovered iron ore deposits, later to provide the basis for the Furness economy. |
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The low rolling hills of Low Furness are formed of glacial deposits, mainly boulder clay, above Triassic sandstone and Carboniferous limestone. |
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Highly viscous lavas do not usually flow as liquid, and usually form explosive fragmental ash or tephra deposits. |
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In course of time, other changes than weathering may overtake tuff deposits. |
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Warter in 1976 from fossils of Middle Miocene, Barstovian age, found in marine deposits in the southern part of California. |
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The geology of this area is dominated by London Clay in the east, Bagshot Sands in the west and alluvial deposits along the rivers. |
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The geology of the area is layers of gritstone, coal and glacial deposits of sand and gravel. |
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Much of the lower slopes are mantled by thick deposits of glacial till or boulder clay dating from the last Ice Age. |
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To the north of these ridges are deposits of clay, sand and gravel left by a glacial lake. |
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The clay sediments are locally overlain by peat deposits forming raised mires. |
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The surface deposits comprise thick peat in the upper reaches, with glacial boulder clay and glacial sand and gravel in the lower parts. |
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At Bacup the headwater of the Irwell is discoloured by ochre deposits from a disused mine but work is being done to stop the ochre seepage. |
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This can be established by the types of glacial deposits in the vicinity of Durham City. |
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There are also deposits of Fluorite, Barite, Witherite, Calcite, Dolomite and Barytocalcite. |
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Lower down on the flood plain, the nature of the underlying ground is Magnesian limestone over alluvium and terrace drift deposits. |
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