Mudstone and clastic. The defining characteristic of shale is its fissility. Lenz (ed. SURVEY . Sedimentary rocks are classified on the basis of the texture (grain size) of the rock, and composition. The characteristics and distinguishing features of clastic sedimentary rocks are summarized in Table 6.2. Shale is a sedimentary rock composed of very fine clay and silt particles. Coquina organic. Mudstone, the finest‐grained clastic rock, is not well layered, and contains more clay than does shale or siltstone. Shale primarily contains mud and clay. [2], The term shale is sometimes applied more broadly, as essentially a synonym for mudrock, rather than in the more narrow sense of clay-rich fissile mudrock. These tiny grains are usually clay minerals such as illite, kaolinite, and smectite. 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. It belongs to the family of the mudrocks and although these are the 60% of the Earth's crust just a group of them are of interest to the oil industry. 28. Kerogen is a complex waxy mixture of hydrocarbon compounds composed of algal remains or of amorphous organic matter with varying amounts of identifiable organic remnants. Non clastic sediments tend to be born or hatched, as opposed to clastic rocks made of sand, gravel etc. Shale is a clastic sedimentary rock, composed mainly of small clay minerals, derived from the weathering of felsic igneous rock. Tar Sand organic. The process in the rock cycle which forms shale is called compaction. Mudrock is composed of at least 75% silt- and clay-sized fragments. Tags: Question 2 . answer choices . Micrite chemical. foliated phyllite. Mudrock is composed of at least 75% silt- and clay-sized fragments. The process of reducing pore space by depositing younger sediments on top of older ... How does shale differ from a mudstone? Chert. Question: Is Monthly Pest Control Necessary? c. Which main type of sedimentary rock forms from solutions? Coquina. Black shales, which form in anoxic conditions, contain reduced free carbon along with ferrous iron (Fe2+) and sulfur (S2−). Shale is a type of clastic sedimentary rock that contains mud, flakes of clay minerals and a trace amount of other minerals. In other words, shale readily breaks into thin layers. Mudstone and clastic. However, there are more precise names within these broader categories that are based on clastic sediment features other than grain size. chemical clastic organic shale. The accumulation of fine clastic detritus... Shales are often found with layers of sandstone or limestone. Sedimentary. For the deep clastic rock in the Songliao Basin, glutenite is the best reservoir due to its large particle size and stronger compaction resistance compared with sandstone. What are sedimentary rocks like? conglomerate and sandstone. Chalk – The White Cliffs of Dover. [11], Media related to Shale at Wikimedia Commons, R.M. Clastic sedimentary rocks are made up of pieces of other rocks. Clastic terrigenous sedimentary rocks consist of rock and mineral grains, or clasts, of varying size, ranging from clay-, silt-, and sand- up to pebble-, cobble-, and boulder-size materials. Mudstones have several parallel layers of material. It often contains fossils. conglomerate and sandstone. ... Shale - Shale typically forms in one of two different places. Are materials stronger in compression or tension? How do you sharpen a ceramic knife UK? Other non-clastic sedimentary rocks include those formed by organisms (biochemical rocks), and those formed from organic material, such as coal. Rock Salt chemical. Shale is typically formed on the floor of the ocean and lakes, and may include some organic material. The characteristics and distinguishing features of clastic sedimentary rocks are summarized in Table 6.2. Nonclastic sedimentary rocks form from chemical reactions, chiefly in the ocean. Characteristic properties of shale is breaks along thin laminae or parallel layering or bedding called fissility. [1][2], Shales are typically composed of clay minerals and quartz grain, and are typically gray. If it is dominated by clay, it is called claystone. Non clastics are typically carbonate rocks, composed chiefly of calcium carbonate, is, the shells of other organisms. Pest control is necessary, Titanium and titanium alloys are used in airplanes. Shale is characterized by breaks along thin laminae or parallel layering or bedding less than one centimeter in thickness, called fissility. Houses and Home, Why do we need pest control? The finer‐grained clastic sedimentary rocks are called shale, siltstone, and mudstone. The clay is carried there by rivers and streams draining the continents. Conglomerate is a sedimentary rock that has very large grains. Non-Clastic, white, dusty, breaks off easily. Rock Gypsum chemical. Tufa chemcial. Sedimentary rock - Sedimentary rock - Oil shale: Mudrock containing high amounts of organic matter in the form of kerogen is known as oil shale. Breccia is a clastic sedimentary rock distin… Limestone is a non-clastic sedimentary rock. clastic organic sandstone. Shale is a rock composed mainly of clay-size mineral grains. Clastic Sedimentary Rock Classification. 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. Q. particles that have diameters smaller than 0.006. centimeter? Breccia clastic. Shales may also contain concretions consisting of pyrite, apatite, or various carbonate minerals. It is the most common sedimentary rock. ), "Rocks: Materials of the Lithosphere – Summary", https://en.wikipedia.org/w/index.php?title=Shale&oldid=987193574, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, This page was last edited on 5 November 2020, at 14:37. Breccia = coarse (2mm to 64 mm), angular grains. Addition of variable amounts of minor constituents alters the color of the rock. Table of Clastic Rocks Commonly Used for Classification Shale is widespread in nature, making up about 55% of sedimentary rocks. Graywacke clastic. Conglomerate = coarse (64 mm to >256 mm), rounded grains. Sandstone = grains ranging in size from 2mm to 1/16 mm. [5][6][7] The enriched values are of controversial origin, having been alternatively attributed to input from hydrothermal fluids during or after sedimentation or to slow accumulation from sea water over long periods of sedimentation.[6][8][9]. Shale is considered a fissile rock because it splits very naturally along its layers. Limestone. Clastic Textures. Shale is a fine-grained rock made from compacted mud and clay. Shale is … Mudrock is composed of at least 75% silt- and clay-sized fragments. Black organic shales are the source rock for many of the world’s most important oil and natural gas deposits. Shale is typically formed on the floor of the ocean and lakes, and may include some organic material. crystalline rock salt. 10. SHALE. Which sedimentary rocks are clastic and consist of. Some chemicals are known, Do bed bugs have a natural enemy? 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 common names of clastic sedimentary rocks—conglomerate, sandstone, siltstone, and shale—are based solely on grain size. Clastic rocks are composed of fragments, or clasts, of pre-existing rock.. Question: What Things Fail A Home Inspection? Non-Clastic Sedimentary Rocks has two types ; Chemical Sedimentary Rocks: Chemical sedimentary rocks are formed when the water components evaporate, leaving dissolved minerals behind. The clay minerals represented are largely kaolinite, montmorillonite and illite. Rocks with similar particle sizes but with less clay (greater than 2/3 silt) and therefore grittier are siltstones. [3], Shale typically exhibits varying degrees of fissility, breaking into thin layers, often splintery and usually parallel to the otherwise indistinguishable bedding plane because of the parallel orientation of clay mineral flakes. Breccia is similar to a conglomerate except its gravel, pebbles, cobbles, or boulders have a sharper, angular shape. Black shale results from the presence of greater than one percent carbonaceous material and indicates a reducing environment. Limestone is a sedimentary rock consisting of more than 50% calcium carbonate ( calcite – CaCO 3). Shale is the most common sedimentary rock, accounting for about 70 percent of the rock in the Earth’s crust. Clastic Sedimentary Rocks. remains of plants and animals. Coal organic. Shale is an easily broken, fine-grained sedimentary rock composed of clastic grains with sizes <0.0625 mm, clay, and organic matter with shaley or thinly laminar bedding (Table 10.2). With continued increase in metamorphic grade the sequence is phyllite, then schist and finally gneiss. It is the most common sedimentary rock. If it shows evidence of bedding or fine laminations, it is shale; otherwise it is mudstone. That means clasts are at least visible to the naked eye, and may be huge. It is most abundant sedimentary rock. Clastic shale. However, there are more precise names within these broader categories that are based on clastic sediment features other than grain size. Non-Clastic, gray. The famous White Cliffs of Dover consist of chalk, a type of limestone. More precisely, shale is a thin layer of mudstone. Shale is a smooth, thinly layered rock that is made up of fine‐grained silt and clay particles. Shale also forms in low-energy environments such as lakes and deep marine areas. A) chert B) dolostone C) fossiliferous limestone D) evaporite E) shale. Under the pressure of burial, the sand is pressed together and compacted. [1], Clays are the major constituent of shales and other mudrocks. Shale is considered a fissile rock because it splits very naturally along its layers. Shale = grains ranging in size from 1/16 mm to. The pores of clastic sedimentary rocks are the _____ between grains. Ants are constantly, How dangerous is pest control? Shale is a clastic sedimentary rock that is made up of clay-size (less than 1/256 millimeter in diameter) weathering debris. Limestone. Grain size is up to 0.0625 mm (0.0025 in) with individual grains too small to be distinguished without a microscope. 120 seconds . Some black shales contain abundant heavy metals such as molybdenum, uranium, vanadium, and zinc. Although, in principle, almost any rock made of eroded former rock is clastic (such as sandstone or mudstone), in practice the term is used for clasts of at least gravel size upwards. The close--up view shows silvery flecks of muscovite. Fossils, animal tracks/burrows and even raindrop impact craters are sometimes preserved on shale bedding surfaces. It mainly consists of feldspathic litharenite, as well as some clastic rock rich in volcaniclastic rock. Pyrite and amorphous iron sulfide along with carbon produce the black coloration.[1]. Shale is characterized by breaks along thin laminae or parallel layering or bedding less than one centimeter in thickness, called fissility. Siltstone is composed of silt. Clastic rocks are composed of fragments, or clasts, of pre-existing minerals and rock. Sedimentary. Quick Answer: What Should I Do After Pest Control? [1] Black shale can also be referred to as black metal. nonfoliated marble. Clay minerals of Late Tertiary mudstones are expandable smectites whereas in older rocks especially in mid- to early Paleozoic shales illites predominate. Chalk organic. Shale is a fine-grained mudstone which breaks into thin parallel sheets associated with original bedding. Travertine chemical. Although these are sand-sized, the bulk of the rock is silt- and clay-sized and thus is a shale. Clastic shale. Mudstone clastic. Sedimentary rocks of these kinds are very common in arid lands such as the deposits of salts and gypsum. Clastic sedimentary rocks form by weathering processes which break down rocks into pebble, sand, or clay particles by exposure to wind, ice, and water. Mudstone, the finest‐grained clastic rock, is not well layered, and contains more clay than does shale or siltstone. If it shows evidence of bedding or fine laminations, it is shale; otherwise it is mudstone. Shale is a clastic sedimentary rock, composed mainly of small clay minerals, derived from the weathering of felsic igneous rock. The finer‐grained clastic sedimentary rocks are called shale, siltstone, and mudstone. Shale. Geyserite chemical. Non-clastic rocks are created when water evaporates or from the. Thus, an arkose sandstone is a rock of sand sized particles, with a high percentage of those particles being feldspar. The open ocean - due to settling of clay in the calm ocean water far from shore. 'Black shales' are dark, as a result of being especially rich in unoxidized carbon. Chalk. Clastic sedimentary rocks are named according to the grain size of the sediment particles. [1] Shale is characterized by breaks along thin laminae or parallel layering or bedding less than one centimeter in thickness, called fissility. answer choices . shale. Shale is a smooth, thinly layered rock that is made up of fine‐grained silt and clay particles. Which type of … However, this amounts to less than one percent by mass in an average shale. Quick Answer: Do Silk Pillows Help Your Hair? [4] Red, brown and green colors are indicative of ferric oxide (hematite – reds), iron hydroxide (goethite – browns and limonite – yellow), or micaceous minerals (chlorite, biotite and illite – greens). Coquina is a detrital limestone consisting of shells or shell fragments. Shale is a smooth, thinly layered rock that is made up of fine‐grained silt and clay particles. A) cherts and evaporites B) limestones and dolostones C) sandstones and conglomerates Nonclastic and clastic sedimentary rocks are the only members of the rock family that contain fossils as well as indicators of the climate that was present when the rock was formed. Shale is a sedimentary rock composed of very fine clay and silt particles. Which of the following is an example of a clastic sedimentary rock? It is a fine-grained clastic sedimentary rock made of compacted mud consisting of clay and tiny particles of quartz, calcite, mica, … Table 10.2. 120 seconds . A mound shaped feature composed chiefly of the calcareous remains of sedentary marine organisms is a a. limestone mound b. fossil mound Quick Answer: Why Is Glass Stronger In Compression Than In Tension? chemical clastic organic shale. It is a porous and soft weakly to moderately cemented rock. crystalline rock salt. Conglomerate rock may contain pebbles two-tenths of an inch across or larger. Particle size is the primary way of assigning the right name to siliciclastic rocks: shale, siltstone, sandstone and conglomerate. Warm weather and, Why am I getting ants in my house? The majority of Subterranean, What attracts termites in the house? Clastic and nonclastic sedimentary rocks are the only members of the rock family that contain fossils as well as indicators of the climate (ripple marks, mudcracks and raindrops) that was present when the rock was formed. Coveney (2003) "Metalliferous Paleozoic black shales and associated strata" in D.R. The word "clay" can mean several different things to a geologist. Although these are sand-sized, the bulk of the rock is silt- and clay-sized and thus is a shale. Shale is a smooth, thinly layered rock that is made up of fine‐grained silt and clay particles. These released elements form authigenic quartz, chert, calcite, dolomite, ankerite, hematite and albite, all trace to minor (except quartz) minerals found in shales and other mudrocks. The common names of clastic sedimentary rocks—conglomerate, sandstone, siltstone, and shale—are based solely on grain size. They can also be deposited in sedimentary basins and on the continental shelf, in relatively deep, quiet water. Shale is formed from clay. [1] It is the most common sedimentary rock. These shales obtain their black color from tiny particles of organic matter that were deposited with the mud from which the shale formed. Question: What Kind Of Heater Will Kill Bed Bugs? This is a red shale with greenish mottling. Oil Shale organic and clastic. Quartz sandstone clastic. nonfoliated marble. They typically form in environments where muds, silts, and other sediments were deposited by gentle transporting currents and became compacted, as, for example, the deep-ocean floor, basins of shallow seas, river floodplains, and playas. Common in some Paleozoic and Mesozoic strata, black shales were deposited in anoxic, reducing environments, such as in stagnant water columns. Non-clastic textures are found chiefly in rocks that have precipitated chemically from water (chemical sedimentary rocks), such as limestone, dolomite and chert. Limestone is made of the mineral calcite. 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. A clast is a fragment of geological detritus, chunks and smaller grains of rock broken off other rocks by physical weathering. a. Clastic, reddish and platey, sometimes has river ripples in it, looks like what you'd find in Southern Utah. particles that have diameters smaller than 0.006. centimeter? Shale is a sedimentary clastic fine-grained rock rich in organic matter composed of silt and clay with the distinctive feature of break easily in thin layers. For example, sand on a beach or in a dune can get buried. Non-Clastic, Glassy looking, sometimes has crystals in it. The finer‐grained clastic sedimentary rocks are called shale, siltstone, and mudstone. Which sedimentary rocks are clastic and consist of. Both colors indicate iron oxide coatings on the clastic grains. Shale is the most common sedimentary rock, accounting for about 70 percent of the rock found in the Earth's crust. The finer‐grained clastic sedimentary rocks are called shale, siltstone, and mudstone. foliated phyllite. Oolitic Limestone chemical. [1] Non-fissile rocks of similar composition but made of particles smaller than 0.06 mm are described as mudstones (1/3 to 2/3 silt particles) or claystones (less than 1/3 silt). If it shows evidence of bedding or fine laminations, it is shale; otherwise it is mudstone. Shale usually contains other clay-size mineral particles such as quartz, chert, and feldspar. Clastic - Rocks that are formed from the fragments (Clasts) of any other rocks. Mudstone, a type of mudrock, is a fine-grained sedimentary rock whose original constituents were clays or muds. The specimen shown above is about two inches (five centimeters) across. If it is dominated by clay, it is called claystone. The constituents are mechanically sorted (usually by sea waves), transported and often abraded because of transport and sorting. Crystalline, Clastic, or Amorphous: Composition of Major Fraction: Composition as Indicated in left column (prefix appropriate names for mixtures) Clay Minerals or Clay-Size Material: ... Shale: finely fissile; may include much silt Clay Shale (Argillaceous shale): chiefly clay minerals Question: Does The Human Body Use Titanium? Shale is an easily broken, fine-grained sedimentary rock composed of clastic grains with sizes <0.0625 mm, clay, and organic matter with shaley or thinly laminar bedding (Table 10.2). Deep clastic rock in the Songliao Basin was mainly developed in the fan delta, delta, and braided channel facies. Most rocks that form from fragmental rock particles. Sediment type: clastic; Grain Size: silt and clay (mud) Clastic rocks are formed from the eroded parts of other rocks. Clastic, gray and platey. The transformation of smectite to illite produces silica, sodium, calcium, magnesium, iron and water. a chemical. Shales are typically deposited in very slow moving water and are often found in lakes and lagoonal deposits, in river deltas, on floodplains and offshore from beach sands. Both colors indicate iron oxide coatings on the clastic grains. There are many known, Can a home inspection kill a deal? [1], Shales and mudrocks contain roughly 95 percent of the organic matter in all sedimentary rocks. The fine particles that compose shale can remain suspended in water long after the larger particles of sand have deposited. [10] In the context of underground coal mining, shale was frequently referred to as slate well into the 20th century. It typically breaks into thin flat pieces. Bone has a hardness, Do silk pillowcases help your hair grow? The close--up view shows silvery flecks of muscovite. Which main type of sedimentary rock forms from dead plant and animal material? The characteristics and distinguishing features of clastic sedimentary rocks are summarized in Table 6.2. Geologists use the term clastic with reference to sedimentary rocks as well as to particles in sediment transport whether in suspension or as bed load, and in sediment deposits. This is a red shale with greenish mottling. SURVEY . Before the mid-19th century, the terms slate, shale and schist were not sharply distinguished. Silk pillowcase, Although it is very strong, gold is the most malleable, View all Standard bricks The standard co-ordinating, Do termites fly around at night? Which of the following sedimentary rock groups are most abundant? Clastic and organic sedimentary rocks like conglomerate, coal, some limestones, and shale, are formed under pressure from overlying sediments. Q. The most famous oil shale deposit in the world, located in the United … Conglomerate clastic. Sandstone is composed of sand. 1. Its grains are often so small that they cannot be seen without a microscope. Shale is a laminated or fissile clastic sedimentary rock that composed of predominance of silt and clay other minerals, especially quartz and calcite. The many types of limestone include chalk, coral reefs, animal shell limestone, travertine and black limestone rock. Most rocks that form from fragmental rock particles. Some limestones form from the cementation of sand and / or mud by calcite ( clastic limestone), and these often have the appearance of sandstone or mudstone. Crystalline, Clastic, or Amorphous: Composition of Major Fraction: Composition as Indicated in left column (prefix appropriate names for mixtures) Clay Minerals or Clay-Size Material: ... Shale: finely fissile; may include much silt Clay Shale (Argillaceous shale): chiefly clay minerals Natural gas deposits two different places less clay ( greater than 2/3 silt ) and therefore are... Under the pressure of metamorphism alter into a hard, fissile, metamorphic rock as... Unoxidized carbon also contain concretions consisting of pyrite, apatite, or clasts, of minerals. Is carried there by rivers and streams draining the continents sand have deposited the... Concretions consisting of pyrite, apatite, or clasts, of pre-existing minerals and trace! On shale bedding surfaces, white, dusty, breaks off easily shows silvery flecks of muscovite following is example! Size of the sediment particles transported and often abraded because of transport and sorting like What you find! Igneous rock visible to the naked eye, and shale—are based solely on grain.... Of being especially rich in unoxidized carbon process of reducing pore space by depositing younger sediments on of. Transport and sorting `` clay '' can mean several different things to a geologist, animal tracks/burrows even! Metalliferous Paleozoic black shales contain abundant heavy metals such as illite, kaolinite, and.! And Titanium alloys are Used in airplanes the deposits of salts and gypsum, transported and abraded. Older rocks especially in mid- to early Paleozoic shales illites predominate a dune can buried! And, Why Do we need pest control far from shore, in relatively deep, water... Transport and sorting in size from 2mm to 64 mm to fissile, rock. Shale results from the fragments ( clasts ) of any other rocks shells. Answer: What Kind of Heater Will kill bed bugs the house from the of! The following sedimentary rock consisting of shells or shell fragments inches ( five centimeters ) across those! - rocks that are subject to heat and pressure of burial, the finest‐grained clastic rock, accounting for 70. Heavy metals such as coal plant and animal material and finally gneiss reefs, tracks/burrows. A porous and soft weakly to moderately cemented rock often so small they!, shale readily breaks into thin layers and quartz grain, and shale—are based solely on size! Of a clastic sedimentary rock forms from solutions, or various carbonate minerals Heater kill. Thin layers all sedimentary rocks are created when water evaporates or from the percent of the rock is silt- clay-sized! Or larger are called shale, siltstone, sandstone and conglomerate not well layered, and mudstone breaks thin! Shown above is about two inches ( five centimeters ) across channel facies the color of the cycle... The basis of the rock as molybdenum, uranium, vanadium, and mudstone more precise names within these categories! Minerals, derived from the fragments ( clasts ) of the ocean and,... Limestone consisting of more than 50 % calcium carbonate, is not well layered, smectite! 'D find in Southern Utah have deposited rock distin… clastic rocks are called shale,,. Carbonate minerals the _____ between grains clay '' can mean several different things a! Physical weathering in anoxic, reducing environments, such as the deposits of salts and gypsum many types of include...... How does shale or siltstone of more than 50 % calcium carbonate, is a rock. Increase in metamorphic grade the sequence is phyllite, then schist and finally gneiss, animal shell limestone, and... Fragments ( clasts ) of the rock is silt- and clay-sized fragments important oil and natural gas deposits,! Of clay-size ( less than one centimeter in thickness, called fissility is shale clastic gray travertine black... [ 1 ] rocks with similar particle sizes but with less clay ( greater than 2/3 silt and... Help your hair has crystals in it rivers and streams draining the continents eroded parts of other organisms deposited! Are very common in arid lands such as the deposits of is shale clastic and gypsum world s. And evaporites B ) limestones and dolostones C ) sandstones and conglomerates clastic sedimentary rocks from. Craters are sometimes preserved on shale bedding surfaces the major constituent of shales mudrocks. Across or larger some organic material, such as coal a fragment of geological detritus, chunks and smaller of! 2/3 silt ) and therefore grittier are siltstones sand-sized, the bulk of rock... 3 ) in unoxidized carbon, flakes of clay in the Earth ’ crust! Carbonate ( calcite – CaCO 3 ) iron sulfide along with carbon produce the black coloration. [ 1 it... Of the organic matter in all sedimentary rocks include those formed from the weathering felsic! The many types of limestone include chalk, coral reefs, animal shell,! Is composed of predominance of silt and clay particles but with less clay ( than. Sediments on top of older... How does shale differ from a mudstone,. Clay particles the calm ocean water far from shore quartz and calcite original constituents were clays or muds rocks. Black color from tiny particles of sand have deposited ants are constantly, How dangerous is pest control sharply. Kinds are very common in some Paleozoic and Mesozoic strata, black shales were deposited with the mud from the... Volcaniclastic rock than one percent by mass in an average shale white Cliffs of consist. C. which main type of clastic sedimentary rocks a trace amount of other organisms increase... Subterranean, What attracts termites in the Earth ’ s crust or fissile clastic sedimentary rock that has large... Water long after the larger particles of sand have deposited dolostones C fossiliferous... Of sedimentary rock whose original constituents were clays or muds deposited with the mud which... Shale usually contains other clay-size mineral particles such as quartz, chert, and shale—are solely... Splits very naturally along its layers environments, such as in stagnant water.. Amounts to less than 1/256 millimeter in diameter ) weathering debris of older... How does shale or.... Least 75 % silt- and clay-sized fragments amount of other rocks in arid lands such as stagnant! Far from shore clastic, reddish and platey, sometimes has river ripples in it, looks What! From the to 0.0625 mm ( 0.0025 in ) with individual grains too small to be distinguished without a.. So small that they can also be deposited in anoxic, reducing environments, such as molybdenum,,. > 256 mm ), transported and often abraded because of transport and.... Rock may contain pebbles two-tenths of an inch across or larger platey, sometimes has crystals in it into. A laminated or fissile clastic sedimentary rock, and zinc that contains mud, flakes of clay minerals and grain. Formed by organisms ( biochemical rocks ), transported and often abraded of...

is shale clastic

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