USGS CMG InfoBank Geology School: cobble

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Title	Comment	Keywords
Sizes of Clastic Sediment	03:58 - 04:39 (00:41) / 1.0 MB	"sedimentary rock", "clastic sediment", erosion, boulder, cobble, pebble, sand, silt, clay, "grain size"
Active Fault Scarp	22:08 - 23:25 (01:17) / 2.1 MB	"Cathy Busby-Spera", "sedimentary rock", "clastic sediment", "sedimentary structure", "Ridge Basin", "basin margin", "San Gabriel Fault", "active fault scarp", "coarse grained sediment", "grain size", "grain shape", "poor sorting", sand, cobble, angularity, transportation, sedimentologist, crust, "tectonic history"
Abrasion	06:18 - 06:45 (00:27) / 1.0 MB	"James Sadd", river, stream, abrasion, "rapid current", sediment, scouring, bedrock, energy, "river channel", cobble, erosion, "flow velocity"
Bed Load	07:10 - 08:20 (01:10) / 1.9 MB	"James Sadd", "Douglas D. Rhodes", river, stream, erosion, sediment, bedrock, "bed load", crust, transportation, discharge, "flow velocity", "grain shape", "grain size", "grain composition", gravel, cobble, boulder, "traction load"

Geology School Keywords

U.S. Department of the Interior | U.S. Geological Survey
URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/keypage/cobbleinelainonmente.html
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Page Last Modified: Tue Feb 5 05:12:53 PST 2013 (chd)