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Sedimentary rock
 
42:19
Sedimentary rocks are types of rock that are formed by the deposition of material at the Earth's surface and within bodies of water. Sedimentation is the collective name for processes that cause mineral and/or organic particles (detritus) to settle and accumulate or minerals to precipitate from a solution. Particles that form a sedimentary rock by accumulating are called sediment. Before being deposited, sediment was formed by weathering and erosion in a source area, and then transported to the place of deposition by water, wind, ice, mass movement or glaciers which are called agents of denudation. The sedimentary rock cover of the continents of the Earth's crust is extensive, but the total contribution of sedimentary rocks is estimated to be only 8% of the total volume of the crust. Sedimentary rocks are only a thin veneer over a crust consisting mainly of igneous and metamorphic rocks. Sedimentary rocks are deposited in layers as strata, forming a structure called bedding. The study of sedimentary rocks and rock strata provides information about the subsurface that is useful for civil engineering, for example in the construction of roads, houses, tunnels, canals or other constructions. Sedimentary rocks are also important sources of natural resources like coal, fossil fuels, drinking water or ores. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 1367 Audiopedia
Jurassic Carmel Formation - The Rocks of Utah
 
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In this episode of the Rocks of Utah we explore the Jurassic Carmel Formation. The Rocks of Utah is a YouTube series that explores the unique geology of Utah, and hosted by Benjamin Burger a geology professor at Utah State University Uintah Basin Campus in Vernal, Utah. To learn more about Benjamin Burger http://www.benjamin-burger.org If you like to learn to start a career in geology visit http://geology.usu.edu You can follow Benjamin Burger on Twitter: https://twitter.com/benjamin_burger Or follow him on Facebook: https://www.facebook.com/benjamin.burger.792 To learn about laws and regulations on collecting fossils in Utah, check out this website: http://www.blm.gov/ut/st/en/prog/more/cultural/Paleontology.html Fossils collected in this episode did not require a permit to collect.
Views: 3756 Benjamin Burger
Improve listening comprehension: At the Mountain of Madness part1
 
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This was created for the purpose of improving your English listening comprehension. Listen and read.
Views: 69 Leonel -san