USGS CMG InfoBank Geology School: dune

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Title	Comment	Keywords
Geology of Mojave National Preserve	n.a. / n.a.	Mojave, dune, sand dune, volcanic remnant, geologic time scale, Cima Dome, Granite Mountains, Hole in the Wall, Cinder Cones, Mitchell Caverns, Kelos Dunes, Soda Lake
Sediment	02:31 - 03:22 (00:51) / 1.0 MB	sediment, "mechanical weathering", "chemical weathering", erosion, wind, water, ice, "biological activity", sand, dune, beach, pebble, stream, shell, "sea floor", compaction, cementation, "sedimentary rock"
Cross-Bedding	13:28 - 14:47 (01:19) / 1.4 MB	"sedimentary rock", "clastic sediment", "Principle of Original Horizontality", "sedimentary structure", bedding, cross-bedding, lakebed, "sea floor", wind, sand, dune, "mineral color", "mineral composition", "sand bar", "stream delta", geologist, stream, deposition, erosion, velocity, water
Cross-Beds Determines Direction	15:20 - 16:08 (00:48) / 1.0 MB	"Walter E. Reed", "sedimentary rock", "clastic sediment", "sedimentary structure", cross-bedding, transportation, river, dune, "water current", downstream, meander, sorting, "grain size"
Wind, Dust and Deserts	30 minutes / n.a.	desert, wind, rainfall, plant, soil, sand, evaporation, air, vegetation, precipitation, dune, desertification, climate
Wind Agent	12:25 - 12:58 (00:33) / 0.9 MB	"James Sadd", desert, landscape, wind, sand, silt, transportation, dune, continent, "ocean basin"
Sand Dunes	14:24 - 15:01 (00:37) / 0.5 MB	desert, wind, sand, ocean, continent, dune
Blowouts and Oasis	15:11 - 16:09 (00:58) / 1.6 MB	"Richard Hazlett", desert, wind, dune, blowout, stream, Sahara, "Earth's surface", vegetation, soil, sediment, "water table", oasis
Sahel	21:42 - 23:02 (01:20) / 2.3 MB	desert, desertification, Africa, Sahel, Sahara, semi-arid, rainfall, grazing, drought, plant, soil, cattle, "dust storm", dune, Ethiopia, Sudan, human
Conclusion	25:45 - 26:48 (01:03) / 1.3 MB	"James Sadd", desert, humans, life, dune, playa, salt, sand, "desert varnish", environment, landform, climate, lake, grassland, forest

Geology School Keywords

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URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/keypage/dune_billed_pla.html
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Page Last Modified: Tue Feb 5 05:12:56 PST 2013 (chd)