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

被引:0
作者
Ryer, T.A. [1 ]
Phillips, R.E. [1 ]
Bohor, B.F. [1 ]
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 | 1980年 / 91卷 / 10期
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摘要
Coal deposits
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页码:579 / 586
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