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Our programs produce accurate geologic maps and 3-D geologic frameworks that provide critical data for sustaining and improving the quality of life and economic vitality of the Nation. 

Filter Total Items: 9023

Maps showing locations of selected pre-Quaternary rock samples from 34 degrees 30 minutes north latitude to 42 degrees north latitude, California continental margin Maps showing locations of selected pre-Quaternary rock samples from 34 degrees 30 minutes north latitude to 42 degrees north latitude, California continental margin

No abstract available.

Maps showing mines, prospects, and mineral sites in the Tray Mountain Roadless Area and vicinity, Northern Georgia 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...

Maps showing sea-floor topography, depth to bedrock, and sediment thickness, Penobscot Bay, Maine 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...

Maps showing selected geology and phosphate resources of the Harrington Peak quadrangle, Bear Lake and Caribou Counties, Idaho 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...

Maps showing selected geology and phosphate resources of the Johnson Creek quadrangle, Caribou County, Idaho 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...

Maps showing selected geology and phosphate resources of the Meade Peak quadrangle, Bear Lake and Caribou Counties, Idaho 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...

Maps showing selected geology and phosphate resources of the Snowdrift Mountain quadrangle, Bear Lake and Caribou Counties, Idaho 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...

Maps showing the distribution and abundance of selected elements in two geochemical sampling media, Lake Clark Quadrangle, Alaska Maps showing the distribution and abundance of selected elements in two geochemical sampling media, Lake Clark Quadrangle, Alaska

No abstract available.

Maps showing water geochemistry of the Buffalo Peaks Wilderness Study Area, Lake, Park, and Chaffee Counties, Colorado Maps showing water geochemistry of the Buffalo Peaks Wilderness Study Area, Lake, Park, and Chaffee Counties, Colorado

This report presents results of geochemical studies carried out in June and July of 1982 in the Buffalo Peaks Wilderness Study Area, Colo. (see index map). Samples of water were collected from 84 streams and 18 springs draining the study area. Tabulations of the analyses and a sample locality map are in Ficklin and others (1984). The geochemistry of stream sediments and panned...

Megafossil locality map, checklists, and Pre-Quaternary stratigraphic sections of Ugashik, Bristol Bay, and part of Karluk quadrangles, Alaska Megafossil locality map, checklists, and Pre-Quaternary stratigraphic sections of Ugashik, Bristol Bay, and part of Karluk quadrangles, Alaska

No abstract available.

Mineral deposits and probability of exploration, Medford 1 degree by 2 degrees Quadrangle, Oregon and California Mineral deposits and probability of exploration, Medford 1 degree by 2 degrees Quadrangle, Oregon and California

No abstract available.

Mineral production maps of the Charlotte 1° x 2° quadrangle, North Carolina and South Carolina Mineral production maps of the Charlotte 1° x 2° quadrangle, North Carolina and South Carolina

No abstract available.
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