Sand: Difference between revisions
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Sand is a combination of broken-down grains of rock and minerals that forms from | Sand is a combination of broken-down grains of rock and minerals that forms from weathering. It may also contain biogenic material, like shells, coral, seaweed, or more. Grains smaller than sand are [[silt]] and grains larger are [[gravel]]. The word sand comes from the Proto-Germanic word sandam. [2] | ||
==Formation== | ==Formation== | ||
Sand is the result of the breakdown of a variety of inorganic and organic materials. It is broken down via physical and chemical weathering. This could be from water, air, or other sand grains. It could be weathered chemically by minerals reacting with water, or other substances. The older the grains, the smoother they are, young grains typically have sharper edges. | |||
==Composition== | ==Composition== | ||
It ranges in size from 1/16th to 2mm.[1] | It ranges in size from 1/16th to 2mm.[1] One of the most common possible materials is Quartz | ||
==Texture Triangle== | ==Texture Triangle== | ||
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[3] NOAA. "How does sand form?" National Ocean Service, oceanservice.noaa.gov, from https://oceanservice.noaa.gov/facts/sand.html | [3] NOAA. "How does sand form?" National Ocean Service, oceanservice.noaa.gov, from https://oceanservice.noaa.gov/facts/sand.html | ||
[4] Adams, Dennis. "Beach Sand: What Is It, Where It Comes and How It Gets Here" Beaufort County Library, from https://web.archive.org/web/20091201183346/http://www.beaufortcountylibrary.org/htdocs-sirsi/beachsan.htm | |||
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Revision as of 16:05, 10 April 2021
Sand is a combination of broken-down grains of rock and minerals that forms from weathering. It may also contain biogenic material, like shells, coral, seaweed, or more. Grains smaller than sand are silt and grains larger are gravel. The word sand comes from the Proto-Germanic word sandam. [2]
Formation
Sand is the result of the breakdown of a variety of inorganic and organic materials. It is broken down via physical and chemical weathering. This could be from water, air, or other sand grains. It could be weathered chemically by minerals reacting with water, or other substances. The older the grains, the smoother they are, young grains typically have sharper edges.
Composition
It ranges in size from 1/16th to 2mm.[1] One of the most common possible materials is Quartz
Texture Triangle
Ecology
References
[1] Sepp, Siim. "What is Sand" SandAtlas.org, Retrieved April 10, 2021, from https://www.sandatlas.org/sand/
[2] Harper, Douglas. “Sand.” Online Etymology Library, Etymonline.com, from www.etymonline.com/word/sand.
[3] NOAA. "How does sand form?" National Ocean Service, oceanservice.noaa.gov, from https://oceanservice.noaa.gov/facts/sand.html
[4] Adams, Dennis. "Beach Sand: What Is It, Where It Comes and How It Gets Here" Beaufort County Library, from https://web.archive.org/web/20091201183346/http://www.beaufortcountylibrary.org/htdocs-sirsi/beachsan.htm
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