Difference between revisions of "Gravel"
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== Authority == | == 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 | * ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998 | ||
| − | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "Gravel." | + | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "Gravel." Encyclopædia Britannica. 2004. Encyclopædia Britannica Premium Service. 13 May 2004 . |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Revision as of 06:23, 24 July 2013
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 .