Rock classification

Rock classification BY ANTOnIO AMORELLI

Sedimentary rocks are types of rock that are formed by the deposition and subsequent cementation of that material at the Earth's surface and with in bodies of water. Sedimentation is the name for processes that cause mineral and/or organic particles to settle in place. The particles that form a sedimentary rock by accumulating are called sediment. Before being deposited, the sediment was formed by weathering and erosion and then transported to the place of deposition by water, wind, ice, or mass movement which are called agents of denudation. Sedimentation also may occur as minerals precipitate from water solution or shells of aquatic creatures settle out of suspension.

Clastic sedimentary rocks are rocks composed of broken pieces or clasts of older weathered and eroded rocks. Clastic rocks or sedimentary rocks are classified based on grain size, clast and cementing material composition, and there texture. The classification factors are often useful in determining a sample's environment of deposition. they are formed in a swamp, the bottom of a lake, or some other muddy environment.

A type of sedimentary rock comprising material deposited directly by precipitation from solution or colloidal suspension and frequently possessing a crystalline texture. Chemical sedimentary rock is formed when minerals, dissolved in water, begin to precipitate out of solution and deposit at the base of the water body. This can occur in hot springs, and more.

Organic-rich sedimentary rocks are a specific type of sedimentary rock that contains significant amounts of organic carbon. The most common types include coal, lignite, oil shale, or black shale. They are usually found in the ocean or lakes.

You can find chemical rocks in swamps.

You can find chemical rocks in hot springs.

You can find organic rocks in lakes.

This is where sedimentary is located.

Igneous rocks are formed from the solidification of molten rock material. There are two basic types. Intrusive igneous rocks crystallize below Earth's surface and the slow cooling that occurs there allows large crystals to form. Examples of intrusive igneous rocks are diorite, gabbro, granite, pegmatite, and peridotite.

Gabbro refers to a large group of dark, often phaneritic, mafic intrusive igneous rocks chemically equivalent to basalt.

Granite is an intrusive felsic igneous rock, having formed under the surface by the slow cooling of magma which had intruded into the crust.

A pegmatite is a very crystalline, intrusive igneous rock composed of interlocking crystals usually larger than 2.5 cm in size

You find gabbro beneath the earths surface.

Granite is usually found in range of hills.

Pegmatite is usually found in black hills.

Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form". The original rock (protolith) is subjected to heat (temperatures greater than 150 to 200 °C) and pressure (1500 bars), causing profound physical and/or chemical change. The protolith may be a sedimentary rock, an igneous rock or another older

Gneiss/ˈnaɪs/ is a common distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that was originally a igneous rock.

Phyllite is a type of foliated metamorphic rock created from slate that is further metamorphosed so that very fine grained white mica achieves a preferred orientation. It is primarily composed of quartz, sericite mica, and chlorite.

Schist is a medium-grade metamorphic rock with medium to large, flat, sheet-like grains in a preferred orientation (nearby grains are roughly parallel).

gneiss rocks are found in rocky mountains.

Phyllite is found in blue ridge mountains.

schist can be found in Ireland.

Created By

ANTONIO AMORELLI

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Credits:

Created with images by sridgway - "Sedimentary rocks everywhere" • James St. John - "Chert ("flint") 2" • James St. John - "Anthracite coal (Mammoth Coal, Llewelyn Formation, Middle Pennsylvanian; Pioneer Tunnel Coal Mine, Ashland, Pennsylvania, USA)" • James St. John - "Cannel coal (Pennsylvanian; eastern Ohio, USA) 1" • ScubaBear68 - "Honey Island Swamp, Louisiana" • Drew And Merissa - "These natural hot springs are great" • GoToVan - "Buntzen Lake" • James St. John - "Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; large glacial erratic along Main Street, Ely, Minnesota, USA) 4" • marylb0 - "Weathered rock" • James St. John - "Lapis lazuli (lazuritic metamorphite) (Sar-e-Sang Deposit, Sakhi Formation, Precambrian, 2.4-2.7 Ga (?); Sar-e-Sang Mining District, Hindu-Kush Mountains, Afghanistan) 1" • NASA Earth Observatory - "Finding the Hottest Spots on Earth by Satellite" • Me in ME - "Wheeler Peak Headwall" • StockSnap - "mountains valleys hills" • James St. John - ""Rockville White Granite" (porphyritic granite, Rockville Granite, late Paleoproterozoic, 1.73 to 1.78 Ga; quarry near Rockville, Minnesota, USA) 2" • James St. John - "Phyllite" • Fæ - "Male Head LACMA AC1992.214.46" • Pexels - "cliff landscape mountain" • imagii - "summit clouds fog" • mbg35 - "cliff ireland cliffs of moher"

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Rock classification BY ANTOnIO AMORELLI

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