About: Dockum Group   Sponge Permalink

An Entity of Type : owl:Thing, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

The Dockum is a Late Triassic (approximately late Carnian through Rhaetian, or 223-200 Ma) geologic group found primaraly on the Llano Estacado of western Texas and eastern New Mexico with minor exposures in southwestern Kansas, eastern Colorado, and Oklahoma panhandle. The Dockum reaches a maximum thickness of slightly over 650 m but is usually much thinner. The Dockum rests on an unconformity over the Anisian (242-234 Ma) aged Anton Chico Formation. The Dockum and Chinle Formation were deposited roughly at the same time and share many of the same vertebrates and plant fossils. They appear to have very similar paleoenviroment. The two units are approximately separated by the Rio Grande River in central New Mexico. The Chinle and Dockum are thought by some to be two separate units, deposit

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  • Dockum Group
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  • The Dockum is a Late Triassic (approximately late Carnian through Rhaetian, or 223-200 Ma) geologic group found primaraly on the Llano Estacado of western Texas and eastern New Mexico with minor exposures in southwestern Kansas, eastern Colorado, and Oklahoma panhandle. The Dockum reaches a maximum thickness of slightly over 650 m but is usually much thinner. The Dockum rests on an unconformity over the Anisian (242-234 Ma) aged Anton Chico Formation. The Dockum and Chinle Formation were deposited roughly at the same time and share many of the same vertebrates and plant fossils. They appear to have very similar paleoenviroment. The two units are approximately separated by the Rio Grande River in central New Mexico. The Chinle and Dockum are thought by some to be two separate units, deposit
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abstract
  • The Dockum is a Late Triassic (approximately late Carnian through Rhaetian, or 223-200 Ma) geologic group found primaraly on the Llano Estacado of western Texas and eastern New Mexico with minor exposures in southwestern Kansas, eastern Colorado, and Oklahoma panhandle. The Dockum reaches a maximum thickness of slightly over 650 m but is usually much thinner. The Dockum rests on an unconformity over the Anisian (242-234 Ma) aged Anton Chico Formation. The Dockum and Chinle Formation were deposited roughly at the same time and share many of the same vertebrates and plant fossils. They appear to have very similar paleoenviroment. The two units are approximately separated by the Rio Grande River in central New Mexico. The Chinle and Dockum are thought by some to be two separate units, deposited in separate depositional basins.
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