Simple Lithology
gravel
http://resource.geosciml.org/classifier/cgi/lithology/gravel
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definition | Clastic sediment containing greater than 30 percent gravel-size particles (greater than 2.0 mm diameter). Gravel in which more than half of the particles are of epiclastic origin |  |
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source | definition of gravel from SLTTs 2004; particle sizes defined from Krumbein phi scale (W C Krumbein and L L Sloss, Stratigraphy and Sedimentation, 2nd edition, Freeman, San Francisco, 1963; Krumbein and Pettijohn, 1938, Manual of Sedimentary Petrography: New York, Appleton Century Co., Inc.) | |
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in scheme | simplelithology | |||||||||
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is primary topic of | gravel& properties=isPrimaryTopicOf | |||||||||