what is the definition shale
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Glossary of geology Shale is a fine-grained, clastic sedimentary rock composed of mud that is a mix of flakes of clay minerals and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite. The ratio of clay to other minerals is variable.
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Glossary of geology For other uses, see Shale (disambiguation) . Shale is a fine-grained, clastic sedimentary rock composed of mud that is a mix of flakes of clay minerals and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite.The ratio of clay to other minerals is variable.Shale is characterized by breaks along thin laminae or parallel layering or bedding less than one centimeter in thickness, called fissility. Mudstones, on the other hand, are similar in composition but do not show the fissility.he ratio of clay to other minerals is variable. Shale is characterized by breaks along thin laminae or parallel layering or bedding less than one centimeter in thickness, called fissility.
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Shale gas As of 2013, the US, Canada, and China are the only countries producing shale gas in commercial quantities. The US and Canada are the only countries where shale gas is a significant part of the gas supply. Shale gas is natural gas that is found trapped within shale formations. Shale gas has become an increasingly important source of natural gas in the United States since the start of this century, and interest has spread to potential gas shales in the rest of the world.
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Shale Shale, any of a group of fine-grained, laminated sedimentary rocks consisting of silt- and clay-sized particles. Shale is the most abundant of the sedimentary rocks, accounting for roughly 70 percent of this rock type in the crust of the Earth. Shales are often found with layers of sandstone or limestone.
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Recovery of oil from oil shale Oil shale: Oil shale, any sedimentary rock containing various amounts of solid organic material that yields petroleum products, along with a variety of solid by-products, when subjected to pyrolysis—a treatment that consists of heating the rock to above 300 °C (about 575 °F) in the absence of oxygen. The
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- Process of Fracking. The Marcellus shale is a rock formation that lies more than a mile beneath the earth’s surface. The formation is special because it contains a significant volume of natural gas trapped inside tiny spaces within the rock.
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Definitions &Translations Wiktionary (5.00 / 10 votes) Rate this definition: petroleum (Noun). A flammable liquid ranging in color from clear to very dark brown and black, consisting mainly of hydrocarbons, occurring naturally in deposits under earth surface. Origin: From petroleum, from petra + oleum.
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Pictures of Sedimentary Rocks Oil shale is a rock that contains significant amounts of organic material in the form of kerogen. Up to 1/3 of the rock can be solid kerogen. Liquid and gaseous hydrocarbons can be extracted from oil shale but the rock must be heated and/or treated with solvents.
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fuel synonym, fuel definition | Thesaurus fossil fuel (fossil fuels plural) , fossil-fuel Fossil fuel is fuel such as coal or oil that is formed from the decayed remains of plants or animals.
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What is Shale Gas? Shales are fine-grained sedimentary rocks that can be rich sources of petroleum and natural gas. Over the past decade, the combination of horizontal drilling and hydraulic fracturing has allowed access to large volumes of shale gas that were previously uneconomical to produce.
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- D. a rock with metamorphic minerals but no foliation or lineation. A shale is metamorphosed into three rock types: (1) a banded gneissic rock; (2) a rock with small mica crystals with a shiny aspect; (3) a very shiny rock with large mica crystals; and (4) a dull slate with cleavage. Which of the following lists these rocks in order of increasing metamorphic grade?
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Oil shale Heating oil shale to a sufficiently high temperature causes the chemical process of pyrolysis to yield a vapor. Upon cooling the vapor, the liquid shale oil—an unconventional oil—is separated from combustible oil-shale gas (the term shale gas can also refer to gas occurring naturally in shales).
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Shale For other uses, see Shale (disambiguation) . Shale is a fine-grained, clastic sedimentary rock composed of mud that is a mix of flakes of clay minerals and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite.The ratio of clay to other minerals is variable.hales and mudrocks contain roughly 95 percent of the organic matter in all sedimentary rocks. However, this amounts to less than one percent by mass in an average shale. Black shales which form in anoxic conditions contain reduced free carbon along with ferrous iron (Fe 2+) and sulfur (S 2−).
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Shale gas Shale gas is natural gas that is found trapped within shale formations. Shale gas has become an increasingly important source of natural gas in the United States since the start of this century, and interest has spread to potential gas shales in the rest of the world.orizontal drilling is often used with shale gas wells, with lateral lengths up to 10,000 feet (3,000 m) within the shale, to create maximum borehole surface area in contact with the shale. Shales that host economic quantities of gas have a number of common properties.
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- Shale is ground up and added to water and additional ingredients to create a highly viscous brick-making material. Shale is a sedimentary rock that has a high clay mineral con … tent. The clay minerals will vitrify into a hard durable material when heated properly.
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Petroleum petroleum, rock oil (mid-14c. in Anglo-French), from Medieval Latin petroleum, from Latin: petra : rock + oleum : oil. ) is a naturally occurring, yellow-to-black liquid found in geological formations beneath the Earth 's surface, which is commonly refined into various types of fuels.he proportion of light hydrocarbons in the petroleum mixture varies greatly among different oil fields, ranging from as much as 97 percent by weight in the lighter oils to as little as 50 percent in the heavier oils and bitumens.
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- Definition of “fossil fuel” - English Dictionary. See all translations. uk ​ /ˈfɒs.əl ˌfjʊəl/ us ​ /ˈfɑː.səl ˌfjʊəl/. › fuels, such as gas, coal, and oil, that were formed underground from plant and animal remains millions of years ago.
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fracking : the injection of fluid into shale beds at high pressure in order to free up petroleum resources (such as oil or natural gas).— frack \ˈfrak\ verb. the injection of fluid into shale beds at high pressure in order to free up petroleum resources (such as oil or natural gas). — frack \ˈfrak\ verb.
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petroleum Definition of petroleum for Students. : a raw oil that is obtained from wells drilled in the ground and that is the source of gasoline, kerosene, and other oils used for fuel.
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fracking LINK / CITE ADD TO WORD LIST. verb. Fracking is defined as hydraulic fracturing, which is a process of using a liquid at high pressure to make fractures in rocks that allow more natural gas or oil to be extracted. An example of fracking is what a drilling company does to try to increase the oil coming out of a well. the injection of water at high pressure into a borehole, in order to open underground fissures for the extraction of natural gas or oil.
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Petroleum Petroleum, complex mixture of hydrocarbons that occur in the Earth in liquid, gaseous, or solid forms. The term is often restricted to the liquid form, commonly called crude oil, but as a technical term it also includes natural gas and the viscous or solid form known as bitumen, which is
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shale A fine-grained sedimentary rock consisting of compacted and hardened clay, silt, or mud. Shale forms in many distinct layers and splits easily into thin sheets or slabs. It varies in color from black or gray to brown or red. See Table at rock.
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Shale Shale is the rock most often associated with landslides. Weathering transforms the shale into a clay-rich soil which normally has a very low shear strength-especially when wet. When these low-strength materials are wet and on a steep hillside they can slowly or rapidly move down slope.
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slate 1 — n. 1. a fine-grained rock formed by the metamorphosis of clay, shale, etc., that tends to split along parallel cleavage planes, usually at an angle to the planes of stratification. 2. a thin piece or plate of this rock or a similar material, used esp. for roofing or as a writing surface.3. a dull, dark bluish gray. n. 1. a fine-grained rock formed by the metamorphosis of clay, shale, etc., that tends to split along parallel cleavage planes, usually at an angle to the planes of stratification. 2. a thin piece or plate of this rock or a similar material, used esp. for roofing or as a writing surface.