| Title |
Comment |
Keywords |
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Cross-Bedding
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13:28 - 14:47 (01:19) / 1.4 MB
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"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
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Depositional Environments of Cross-Bedding
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14:47 - 15:20 (00:33) / 0.6 MB
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"Walter E. Reed", "sedimentary rock", "clastic sediment", "sedimentary structure", "depositional environment", deposition, cross-bedding, river, interruption, progradation
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Cross-Beds Determines Direction
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15:20 - 16:08 (00:48) / 1.0 MB
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"Walter E. Reed", "sedimentary rock", "clastic sediment", "sedimentary structure", cross-bedding, transportation, river, dune, "water current", downstream, meander, sorting, "grain size"
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Reconstructing Ancient Landscapes
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17:49 - 18:37 (00:48) / 1.0 MB
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"sedimentary rock", "clastic sediment", "sedimentary structure", geologist, "mud crack", "ripple mark", cross-bedding, landscape, "San Andreas Fault", "San Gabriel Fault", "Ridge Basin", "Southern California", basin, mountain
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Past Deserts
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07:38 - 08:29 (00:51) / 1.6 MB
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"Southwestern United States", desert, "fossil dune", "Grand Canyon", sandstone, "Zion National Park", "cross-bedding", oxidation, iron, "dry land", plant, animal, fossil, forest, "geologic time", "plate tectonics", orogeny, mountain, "rain shadow"
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Geology School Keywords
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