Wells, John D. 1946-

Relationship of Precambrian quartzite-schist sequence along coal creek to Idaho springs formation front range, Colorado / by John D. Wells, Douglas M. Sheridan and Arden L. Albee. -- Washington : United States Government Printing Office, 1964 - 23 p. -- (Geological Survey Professional Paper ; 454-O).


Colorado
Estratigrafía

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