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Aquatic assessment of the Ely Copper Mine Superfund site, Vershire, Vermont
A wide variety of geochemical analyses show strong local impact on water quality in this area of historical copper mining. |
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Bedrock soil and lichen geochemistry from Isle Royale National Park, Michigan
Geochemical analyses conducted as part of a larger study of the Midcontinent Rift in the Lake Superior region. |
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Generalized thermal maturity map of Alaska
Data derived from the 1996 "Generalized Thermal Maturity Map of Alaska" compiled by M.J. Johnsson and D.G. Howell, published in USGS Bulletin 2142. Combines vitrinite reflectance and conodont alteration index in generalized units. |
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Geologic and fossil locality maps of the west-central part of the Howard Pass quadrangle and part of the adjacent Misheguk Mountain quadrangle, western Brooks Range, Alaska
This publication includes a bedrock geologic map depicting the complex allochthonous structure of an area along the north flank of the west-central Brooks Range. A compilation of new and previously reported macro- and micro-fossil identifications and a |
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Impact of mine and natural sources of mercury on water, sediment, and biota in Harley Gulch adjacent to the Abbott-Turkey Run mine, Lake County, California
Detailed samples around these abandoned mines will help to determine how well site remediation efforts have worked to reduce the dangerous levels of mercury that come from both natural sources here as well as the abandoned mines. |
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Integrated investigations of environmental effects of historical mining in the Animas River watershed, San Juan county, Colorado
Major assessment of the environmental effects of historical mining in the Animas River watershed with GIS data files, tables, and plates. |
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