Geochemical Characteristics of Mineralized Breccia Pipes in the Red Mountain District, San Juan Mountains, Colorado
by Frederick S. Fisher, Henry Bell, Norman L. Hatch, Paul Averitt, Richard F. Marvin, George E. Siple, Lorreda Lopez, Rolfe S. Stanley, T. W. Stern, Willard P. Leedy, Saville Cyrus Creasey, Harald H. Mehnert ยท 1972
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Page count: 26
A facies change and a new Ordovician formation in southwest Massachusetts are described, and correlations between western Massachusetts and Connecticut are suggested.