Gravel

Description

A general term used for stone aggregate ranging in size from 4 mm to 64 centimeters. Natural gravel deposits are found are found near rivers or beaches. The stones typically have rounded edges due to abrasion and weathering. Clay accumulations in the gravel can form a cemented stone called a conglomerate.

Authority

External source or communication Comment: Submitted information: Fred Gamble, October 2007

The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998

Encyclopedia Britannica, http://www.britannica.com Comment: "Gravel." Encyclopædia Britannica. 2004. Encyclopædia Britannica Premium Service. 13 May 2004 .

Gravel

Description

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Gravel

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