Use of altered volcanic ash falls in stratigraphic studies of coal-bearing sequences: An example from the Upper Cretaceous Ferron Sandstone Member of the Mancos Shale in central Utah
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作者:
Ryer, T.A.
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U.S. Geological Survey, Federal Center, Denver, CO 80225, United StatesU.S. Geological Survey, Federal Center, Denver, CO 80225, United States
Ryer, T.A.
[1
]
Phillips, R.E.
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U.S. Geological Survey, Federal Center, Denver, CO 80225, United StatesU.S. Geological Survey, Federal Center, Denver, CO 80225, United States
Phillips, R.E.
[1
]
Bohor, B.F.
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机构:
U.S. Geological Survey, Federal Center, Denver, CO 80225, United StatesU.S. Geological Survey, Federal Center, Denver, CO 80225, United States
Bohor, B.F.
[1
]
Pollastro, R.M.
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机构:
U.S. Geological Survey, Federal Center, Denver, CO 80225, United StatesU.S. Geological Survey, Federal Center, Denver, CO 80225, United States
Pollastro, R.M.
[1
]
机构:
[1] U.S. Geological Survey, Federal Center, Denver, CO 80225, United States
来源:
Bulletin of the Geological Society of America
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1980年
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91卷
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10期