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  Encyclopedia of Keywords > Places > Earth > Geology > Sediments > Sedimentary Rocks   Michael Charnine

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  1. Sedimentary rocks are formed from particles of sand, shells, pebbles, and other fragments of material.
  2. Sedimentary rocks are made of particles of sediments such as sand and clay, or the skeletons and shells of sea creatures. (Web site)
  3. Sedimentary rocks are formed from (1) the weathering and transport of pre-existing rocks and (2) the chemical precipitation of sediments. (Web site)
  4. Sedimentary rocks are formed in layers as the result of moderate pressure on sediments that have accumulated from weathering.
  5. Sedimentary rocks are formed of sediments derived from older rocks, Plants and animal remains thus these rocks contains fossils of animals and plants.

Organic Sedimentary Rocks

  1. Sedimentary rocks are classified as clastic, chemical, and organic sedimentary rocks.
  2. These rocks have three major classifications of clastic, chemical and organic sedimentary rocks.
  3. Chemical and Organic Sedimentary Rocks are the other main group of sediments besides clastic sediments.

Form Sedimentary Rocks

  1. They are then deposited and lithified to form sedimentary rocks. (Web site)
  2. Over time, they form sedimentary rocks.


  1. In the rock cycle you can see how each rock type; igneous, metamorphic, and sedimentary rocks are formed.
  2. E3.1A Discriminate between igneous, metamorphic, and sedimentary rocks and describe the processes that change one kind of rock into another.
  3. Anthophyllite is metamorphic and is found in gneisses and schists derived from magnesium rich igneous or dolomitic sedimentary rocks.

Sedimentary Rocks Form

  1. Sedimentary rocks form from the weathering, erosion, transport and deposition of arc material onto the continental platform and shelf.
  2. There are many different types of environments where sedimentary rocks form.
  3. Most sedimentary rocks form under water.


  1. Deep drilling has revealed that similar metamorphic and igneous rocks underlie the sedimentary rocks of the Coastal Plain. (Web site)


  1. Sedimentary rocks are those which form by the consolidation of sediments and are generally layered.
  2. The sedimentary rocks based on the nature and degree of consolidation, loose the primary porosity and so are treated as hard rocks. (Web site)


  1. These sedimentary rocks constitute the interior platforms of the continents. (Web site)
  2. The rocks deformed in the process are generally marine sedimentary rocks formed along the margins of continents. (Web site)


  1. Oil can only be formed in sedimentary rocks, that is, rocks that were laid down as sediments beneath ancient shallow seas. (Web site)
  2. Not only oil and gas, but also a large variety of other resources are extracted from sediments and sedimentary rocks.


  1. Most petroleum occurs in marine sedimentary rocks, so we want organisms rich in fatty acids that live in the sea, in huge quantities. (Web site)


  1. Ophiolites are an assemblage of mafic and ultramafic lavas and hypabyssal rocks found in association with sedimentary rocks like greywackes and cherts. (Web site)
  2. Most often they form in terrains where mafic or ultramafic basement rocks are overlain upsection by organic-rich sedimentary rocks.


  1. Like modern corals, these ancestors built reefs, some of which now lie as great structures in sedimentary rocks. (Web site)


  1. The Basin has an impressive collection of sedimentary rocks, as deposition was underway from the Permian until the Upper Cretaceous.
  2. The coastal plains are underlain by sedimentary rocks of Cretaceous, Tertiary, and Quaternary age.
  3. Cretaceous to Pliocene sedimentary rocks are preserved extensively beneath the inland basins, Canterbury Plains and in offshore areas.


  1. Explain the formation of sedimentary rocks in terms of the rock cycle.

Clastic Rocks

  1. Sedimentary rocks made of cemented, non-organic sediments are called clastic rocks.


  1. Scuba divers who have seen mud and shells settling on the floors of lagoons find it easy to understand how sedimentary rocks form. (Web site)

Clastic Sedimentary Rocks

  1. Conglomerate, breccia, sandstone, siltstone and shale are examples of clastic sedimentary rocks.
  2. Clastic sedimentary rocks are rocks composed predominantly of broken pieces or clasts of older weathered and eroded rocks. (Web site)
  3. Clastic sedimentary rocks are the group of rocks most people think of when they think of sedimentary rocks.


  1. Clastic Sedimentary Rocks are those that are composed of fragments of other rocks (igneous, metamorphic, sedimentary).
  2. Clastic sedimentary rocks are made up of fragments of other rocks and include sandstone, conglomerate, and shale.
  3. Clastic sedimentary rocks are classified according to the size and the shape of the fragments in them.


  1. SEDIMENTARY ROCKS form from material that has accumulated on the Earth's surface. (Web site)


  1. The term "formation" is most commonly associated with strata, namely layers of sediments that have hardened into sedimentary rocks. (Web site)


  1. Sedimentary rocks cover most of the Earth 's surface, record much of the Earth's history, and harbor the fossil record. (Web site)


  1. Sedimentary rocks made of silt- and clay-sized particles are collectively called mudrocks, and are the most abundant sedimentary rocks. (Web site)
  2. Sandstone, shale, and limestone comprise the most abundant sedimentary rocks in New York State. (Web site)


  1. Sedimentary rocks usually occur in shallow parts of the sea or in lakes in desert areas where evaporation is higher than precipitation.
  2. As evaporation continues, more crystals form and accumulate on the sea or lake floor, becoming sedimentary rocks.


  1. Mostly, Fluorine can be found in common rock forming minerals, including fluorite (CaF 2). It occurs in both igneous and sedimentary rocks.
  2. Fluorite occurs in magmatic rocks, metallic mines, and also in sedimentary rocks. (Web site)


  1. The net effect is that the sedimentary record is not continuous: the record of time provided by sedimentary rocks is of fits and starts, feast or famine.
  2. Sedimentary rocks are formed over long periods of time as tiny grains of material are pressed against each other and join loosely.
  3. Over time, the continued rise in sealevel produced a layered stack of sedimentary rocks having sandstone at the base and carbonates on the top.


  1. Streams carry billions of tons of sediment to lower elevations, and thus are one of the main transporting mediums in the production of sedimentary rocks. (Web site)
  2. Often placer deposits are found within sedimentary rocks and can be billions of years old, for instance the Witwatersrand deposits in South Africa.


  1. Generally speaking, these rocks are formed from the alteration of igneous and sedimentary rocks through heat and pressure.
  2. Metamorphic Rocks form from the alteration of igneous and sedimentary rocks through pressure and heat.
  3. Metamorphic rocks are created by the alteration of existing igneous or sedimentary rocks by heat, pressure, or through the chemical action of fluids.


  1. Nearly 75% of the continental surfaces are covered by sedimentary rocks, although they form only about 5% of the crust.


  1. Key to the formation of sedimentary rocks is the partial pressure of carbon dioxide in the atmosphere and in the oceans. (Web site)
  2. Sedimentary rocks are formed as particles settle to the bottom of oceans and lakes.
  3. Chemical studies of ancient sedimentary rocks and the fluids contained in them have provided insights into the evolution of the oceans and the atmosphere. (Web site)


  1. Sedimentary rocks from this process can include the evaporite minerals halite (rock salt), sylvite, barite and gypsum. (Web site)
  2. The process by which sedimentary rocks are formed is delicate enough that fossils can be preserved within them.
  3. The solid remains of this process as well as the dissolved material can go into making the sedimentary rocks. (Web site)


  1. The process of crystallization of dissolved minerals also give rise to the formation of sedimentary rocks.

Organic Matter

  1. Shales and mudrocks contain roughly 95 percent of the organic matter in all sedimentary rocks. (Web site)
  2. Sedimentary rocks may be formed either by rock fragments or organic matter being bound together or by chemical precipitation.
  3. Organic sedimentary rocks are composed of organic matter in the form of plant fragments.


  1. However, based on the composition of volcanic and sedimentary rocks, the accreted terrane in Idaho is not related to the Wrangellia terrane. (Web site)


  1. Sedimentary rocks can be weathered and eroded to form a new generation of sedimentary rocks. (Web site)
  2. Since these granites are hard and resistant, they have been eroded more slowly than the surrounding sedimentary rocks, forming the upstanding moorlands. (Web site)
  3. Metamorphic rocks can be weathered and eroded to form sedimentary rocks. (Web site)


  1. Nature and origin of igneous, metamorphic, and sedimentary rocks. (Web site)
  2. Several different types of sedimentary rocks can be distinguished according to mineral composition, and origin of the sediment.
  3. The scientific discipline that studies the properties and origin of sedimentary rocks is called sedimentology. (Web site)


  1. Most commonly, an escarpment, also called a scarp, is a transition from one series of sedimentary rocks to another series of a different age and composition.
  2. They usually begin as igneous or sedimentary rocks, but through heat and pressure the composition of the rock has changed. (Web site)
  3. First Sentence: Sedimentology is concerned with the composition and genesis of sediments and sedimentary rocks, and the creation of predictive models.


  1. In addition, sedimentary rocks often form porous and permeable reservoirs in sedimentary basins in which petroleum and other hydrocarbons can be found. (Web site)
  2. Oil reserves in sedimentary rocks are the principal source of hydrocarbons for the energy, transport and petrochemical industries. (Web site)
  3. Oil reserves in sedimentary rocks are the source of hydrocarbons for the energy, transport and petrochemical industry. (Web site)

Fossil Fuels

  1. Over time, excess carbon became locked in fossil fuels, sedimentary rocks (notably limestone), and animal shells. (Web site)
  2. According to the biogenic theory, fossil fuels are the altered remnants of ancient plant and animal life deposited in sedimentary rocks. (Web site)


  1. Mineral composition is very similar to igneous rocks, structures and textures are similar to clastic sedimentary rocks. (Web site)


  1. It became obvious that granite and sedimentary rocks "which originally must have been part of a continent" were abundant (Ewing, 1949). (Web site)

Continental Crust

  1. Oceanic crust is thinner and heavier, so it swims deeper, continental crust is lighter because of the sedimentary rocks, and thats why it is higher.


  1. Geology, 15, 245-248 Kaplan, M.E., 1979. Calcite pseudomorphs (pseudogaylusite, jarrowite, thinolite, glendonite, gennoishi) in sedimentary rocks. (Web site)
  2. The study of the layered character of sedimentary rocks is what we call stratigraphy within Geology.
  3. The geology of the Maltese archipelago is composed of young sedimentary rocks of marine origin.


  1. Stratigraphy is that branch of geology concerned with understanding the geometrical relationships between sedimentary rocks. (Web site)
  2. Stratigraphy is the study of rock strata, especially the distribution, deposition, and age of sedimentary rocks. (Web site)
  3. Stratigraphy is the study of the origin, age, and development of layered, generally sedimentary rocks. (Web site)


  1. Chemical precipitate sedimentary rocks are formed due to the action of water of dissolving several minerals and having them deposited on evaporation.
  2. Sedimentary rocks are also important because they may contain water for drinking or oil and gas to run our cars and heat our homes.
  3. Sedimentary rocks - Secondary rocks formed from material derived from other rocks and laid down under water. (Web site)


  1. Organic sedimentary rocks such as coal form from the accumulation of plant or animal debris. (Web site)

Calcium Carbonate

  1. Limestone - The general name for sedimentary rocks composed essentially of calcium carbonate.


  1. Occurrence & Diagnostic of Red Iron Oxide Hematite occurs in many types of igneous, metamorphic and sedimentary rocks.
  2. The other two types of sedimentary rocks are termed non-clastic.


  1. Places > Earth > Geology > Sediments
  2. Matter > Materials > Rocks > Metamorphic Rocks
  3. Matter > Materials > Rocks > Igneous Rocks
  4. Sandstone
  5. Shale



    Related Keywords

      * Apatite * Banded Iron Formations * Bedding * Beds * Biotite * Calcite * Carbonate Rocks * Cementation * Characteristic Feature * Chemical * Chemical Sedimentary Rocks * Chert * Clay * Clays * Clay Minerals * Coal * Coals * Common * Common Constituent * Common Mineral * Compacted * Compaction * Deposition * Deposits * Earth * Earth?s Surface * Eastern Margin * Erosion * Evaporites * Feldspar * Form * Fossils * Horizontal Layers * Igneous * Igneous Rock * Igneous Rocks * Layers * Limestone * Limestones * Lithified * Magma * Magnetite * Metamorphic Rocks * Metamorphism * Minerals * Parallel Layers * Particles * Quartz * Quartzite * Result * Rock * Rocks * Sand * Sandstone * Sandstones * Sediment * Sedimentary Rocks Rocks * Sediments * Shale * Shales * Skarn * Strata * Superposition * Texture * Unconformity * Weathering
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