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Areal geology of the Little Cone quadrangle, Colorado
Alfred Lerner Bush, O.T. Marsh, Richard Bartlett Taylor
1958, Trace Elements Investigations 602
The Little Cone quadrangle includes an area of about 59 square miles in eastern San Miguel County in southwestern Colorado. It lies within and adjacent to the northeastern boundary of the Colorado Plateau physiographic province. The precipitous front of the San Juan Mountains lies a few miles to the east...
The geology of the Bishop 15-minute quadrangle, California
Paul Charles Bateman
1958, Open-File Report 58-11
The purpose of the study of the Bishop 15-minute quadrangle in east-central California was to appraise the mineral resources and to delineate and interpret the stratigraphic and structural history of the area. A report on the mineral resources has been published and the emphasis here is on stratigraphy and structure....
Geology of the manganese deposits of Cuba
Frank S. Simons, John A. Straczek
1958, Bulletin 1057
Deposits of manganese ore have been found in five of the six provinces of Cuba and have been reported from the sixth.  Only Oriente and Pinar del Rio provinces have more than a few known deposits and only the deposits of Oriente have yielded any appreciable amount of ore....