| Title |
Comment |
Keywords |
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Sedimentary Rocks: The Key to Past Environments
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30 minutes / n.a.
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"sedimentary rock", "clastic sediment", "sedimentary structure", sand, water, deposition, erosion, "depositional environment", time, river, lake
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Sizes of Clastic Sediment
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03:58 - 04:39 (00:41) / 1.0 MB
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"sedimentary rock", "clastic sediment", erosion, boulder, cobble, pebble, sand, silt, clay, "grain size"
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Sorting of Sediments
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05:15 - 06:03 (00:48) / 1.3 MB
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"Dee Trent", "sedimentary rock", "clastic sediment", deposition, water, river, mountain, canyon, valley, "coarse grained sediment", "fine grained sediment", sandstone, siltstone, ocean, sand, shoreline, mud, clay
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Lithification
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06:03 - 07:05 (01:02) / 1.9 MB
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"Walter E. Reed", "sedimentary rock", "clastic sediment", compaction, cementation, "chemical precipitation", "pore space", packing, distortion
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Environments of Deposition
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09:44 - 10:14 (00:30) / 0.5 MB
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"sedimentary rock", "clastic sediment", "glacial valley", lake, beach, "river delta", "sea floor", deposition, water, land
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Principle of Uniformity
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10:14 - 11:49 (01:35) / 2.3 MB
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"James Sadd", "sedimentary rock", "clastic sediment", geologist, "Principle of Uniformity", "geologic time", weathering, water, wind, tide, "sea level change", lithification, deposition, "Earth's surface", limestone, "calcium carbonate", mud, quartz, sand, fossil, "tropical sea", Bahamas, "Florida Keys"
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Sedimentary Structures
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11:49 - 12:27 (00:38) / 0.7 MB
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"Walter E. Reed", "sedimentary rock", "clastic sediment", "sedimentary structure", deposition, "depositional environment", erosion, transportation
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Bedding
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12:27 - 13:28 (01:01) / 1.2 MB
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"Walter E. Reed", "sedimentary rock", "clastic sediment", "sedimentary structure", bedding, bed, "bedding plane", interruption, time
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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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Ripple Marks
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16:08 - 16:36 (00:28) / 0.5 MB
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"sedimentary rock", "clastic sediment", "sedimentary structure", "ripple mark", sand, "shallow water", wave, current
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Mud Cracks
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16:36 - 17:49 (01:13) / 1.4 MB
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"Walter E. Reed", "sedimentary rock", "clastic sediment", "sedimentary structure", "mud crack", fissure, deposition, "depositional environment", "river bed", "tidal flat", desiccation, preservation, sand, river, "natural levee", floodplain, meander, "braided stream", delta, climate
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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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Ridge Basin
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18:37 - 20:06 (01:29) / 2.1 MB
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"Cathy Busby-Spera", "sedimentary rock", "clastic sediment", "sedimentary structure", "Ridge Basin", sedimentologist, lake, "fine grained sediment", "thin bed", water, "depositional environment", "river channel", continuity, limestone, microfossil, "fresh water", "mud crack", "ripple mark"
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Evidence of Rivers
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20:06 - 21:02 (00:56) / 1.4 MB
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"Cathy Busby-Spera", "sedimentary rock", "clastic sediment", "sedimentary structure", "Ridge Basin", lake, river, "depositional environment", "fine grained sediment", mud, delta, thickening, "coarsening upward sequence", bed, "thin bedded sandstone", "medium bedded sandstone", sand, "coarse grained sediment"
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Scour and Fill
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21:02 - 22:08 (01:06) / 0.9 MB
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"Cathy Busby-Spera", "sedimentary rock", "clastic sediment", "sedimentary structure", "Ridge Basin", "scour and fill", "water velocity", sandstone, sand, erosion, "depositional environment", "pebbly sand", "rip up fragment", "fluctuating current", "river channel"
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Active Fault Scarp
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22:08 - 23:25 (01:17) / 2.1 MB
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"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"
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Record of Earth's History
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25:06 - 25:34 (00:28) / 0.6 MB
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"James Sadd", geologist, "sedimentary rock", "clastic sediment", "Grand Canyon", "geologic time", "Earth's surface", mountain
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Conclusion
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25:34 - 26:56 (01:22) / 1.2 MB
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"James Sadd", "sedimentary rock", "clastic sediment", "Grand Canyon", "Colorado River", sand, mud, "volcanic ash", "lava flow", "ocean basin", deformation, mountain, orogeny, "Mazatzal Mountains", erosion, uplift, limestone, shale, "sea level rise", flood, volcanism, deposition, unconformity, ocean, preservation
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Geology School Keywords
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