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Maps showing distribution of tungsten in heavy-mineral concentrates, Richfield 1° x 2° quadrangle, Utah
These maps are part of a folio of maps of the Richfield 1° x 2 ° quadrangle, Utah, prepared under the Conterminuous United States Mineral Assessment Program. Other publications in this folio are listed in the selected references.Located in west-central Utah, the Richfield quadrangle covers the eastern part of the Plioche-Marysvale igneous and mineral belt, which extends from the vicinity of Plioch
Maps showing distribution of zinc in heavy-mineral concentrates, Richfield 1° by 2° quadrangle, Utah
These maps are part of a folio of maps of the Richfield 1° x 2° quadrangle, Utah, prepared under the Coterminous United States Mineral Assessment Program. Other publications in this folio are listed in the selected references.Located in west-central Utah, the Richfield quadrangle covers the eastern part of the Plioche-Marysvale igneous mineral belt, which extends from the vicinity of Plioche in so
Maps showing mines, prospects, and mineral sites in the Tray Mountain Roadless Area and vicinity, Northern Georgia
The Tray Mountain Roadless Area, a 36,300-acre tract in the Chattahoochee National Forest, northeastern Georgia, lies within the Blue Redge physiographic province. The roadless area is composed of Precambrian(?)-age metamorphic rocks from two tectonic units, the Hayesville thrust sheet and the "Helen belt" (Nelson, 1982) (fig. 1). The Hayesville thrust sheet consists mostly of biotite gneiss and
Maps showing sea-floor topography, depth to bedrock, and sediment thickness, Penobscot Bay, Maine
This report presents results of a high-resolution seismic-reflection survey conducted by the U.S. Geological Survey to determine the subbottom characteristics of Penobscot Bay, Maine. Penobscot Bay is one of the major embayments along the U.S. Atlantic coast (fig. 1), extending more than 50 km from the Gulf of Maine to the mouth of the Penobscot River. The bay constitutes an area of about 1,100 km
Maps showing selected geology and phosphate resources of the Harrington Peak quadrangle, Bear Lake and Caribou Counties, Idaho
This report summarizes information on the thickness, grade, lateral continuity, phosphate resources, and ownership of phosphate-bearing units in the Meade Park Phosphatic Shale Member of the Phosphoria Formation in the Harrington Peak quadrangle. This report is one of a series of quadrangle reports prepared by the Idaho Bureau of Mines and Geology under U.S. Geological Survey cost-sharing contract
Maps showing selected geology and phosphate resources of the Johnson Creek quadrangle, Caribou County, Idaho
This report summarizes information on the thickness, grade, lateral continuity, phosphate resources, and ownership of phosphate-bearing units in the Meade Peak Phosphatic Shale Member of the Phosphoria Formation in the Johnson Creek quadrangle. This report is one of a series of quadrangle reports prepared by the Idaho Bureau of Mines and Geology under U.S. Geological Survey cost-sharing contract #
Maps showing selected geology and phosphate resources of the Meade Peak quadrangle, Bear Lake and Caribou Counties, Idaho
This report summarizes information on the thickness, grade, lateral continuity, phosphate resources, and ownership of phosphate-bearing units in the Meade Peak Phosphatic Shale Member of the Phosphoria Formation in the Meade Peak quadrangle. This report is one of a series of quadrangle reports prepared by the Idaho Bureau of Mines and Geology under U.S. Geological Survey cost-sharing contract #14-
Maps showing selected geology and phosphate resources of the Snowdrift Mountain quadrangle, Bear Lake and Caribou Counties, Idaho
This report summarizes information on the thickness grade, lateral continuity, phosphate resources, and ownership of phosphate bearing units in the Meade Park Phosphatic Shale Member of the Phosphoria Formation in the Snowdrift Mountain quadrangle. This report is one of a series of quadrangle reports prepared by the Idaho Bureau of Mines and Geology under U.S. Geological Survey cost-sharing cont