Early stage in replacement of limestone by copper ore, Highland Boy mine no. Salt Lake County, Utah. 1900.
Dates
Date Taken
1900
Summary
Early stage in replacement of limestone by copper ore, banded partially marmorized limestone cut by strike fissures, Highland Boy mine no. 6 level, looking west. In the walls of these fissures characteristic contact metamorphic minerals appear, and chalcopyrite and specularite replace metamorphic limestone. Salt Lake County, Utah. 1900, plate 31-A in U.S. Geological Survey. Professional paper 38. 1905.
Summary
Early stage in replacement of limestone by copper ore, banded partially marmorized limestone cut by strike fissures, Highland Boy mine no. 6 level, looking west. In the walls of these fissures characteristic contact metamorphic minerals appear, and chalcopyrite and specularite replace metamorphic limestone. Salt Lake County, Utah. 1900, plate 31-A in U.S. Geological Survey. Professional paper 38. 1905.
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