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. [1 ]
Phillips, R.E. [1 ]
Bohor, B.F. [1 ]
Pollastro, R.M. [1 ]
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[1] U.S. Geological Survey, Federal Center, Denver, CO 80225, United States
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Coal deposits
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页码:579 / 586
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