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Geology and zinc-lead deposits in the Catfish Creek area, Dubuque County, Iowa Geology and zinc-lead deposits in the Catfish Creek area, Dubuque County, Iowa
A detailed geologic study was begun in 1951 by the U.S. Geological Survey in cooperation with the Iowa Geological Survey to appraise the potentialities of the Iowa part of the Wisconsin-Illinois-Iowa zinc-lead district for (1) zinc ore in rock strata that contain pitch-and-flat zinc ore bodies elsewhere in the mining district and (2) joint-controlled lead and zinc ore like that mined...
Geology of Gabbs and vicinity, Nye County, Nevada Geology of Gabbs and vicinity, Nye County, Nevada
The geologic map of Gabbs and vicinity covers approximately 105 square miles of the northwestern part of the Paradise Peak quadrangle. The present report stresses the igneous, metamorphic, and structural geology. The map published at this time shows, (1) the distribution of igneous rocks in the area, (2) the relationship of these igneous rocks to the areas of magnesium mineralization...
Loa 1 NE quadrangle, Utah Loa 1 NE quadrangle, Utah
No abstract available.
Loa 1 SE quadrangle, Utah Loa 1 SE quadrangle, Utah
No abstract available.