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3321 results.

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Not all publications have extents, not all extents are completely accurate
Geochemical, aeromagnetic, and generalized geologic maps showing distribution and abundance of antimony and tungsten, Golconda and Iron Point quadrangles, Humboldt County, Nevada
R. L. Erickson, S.P. Marsh
1971, Miscellaneous Field Studies Map 313
Detailed geologic and geochemical studies of the four 7 1/2-minute quadrangles that make up the Edna Mountain 15-minute quadrangle in Humboldt County, Nevada, were begun during the 1969 summer field season. The objectives of the project are to map the geology of this structurally complex area at 1:24,000 scale and...
Geochemical, aeromagnetic, and generalized geologic maps showing distribution and abundance of gold and copper, Golconda and Iron Point quadrangles, Humboldt County, Nevada
R. L. Erickson, S.P. Marsh
1971, Miscellaneous Field Studies Map 314
Detailed geologic and geochemical studies of the four 7 1/2-minute quadrangles that make up the Edna Mountain 15-minute quadrangle in Humboldt County, Nevada, were begun during the 1969 summer field season.  The objectives of the project are to map the geology of this structurally complex area at 1:24,000 scale and...
Geochemical, aeromagnetic, and generalized geologic maps showing distribution and abundance of lead and silver, Golconda and Iron Point quadrangles, Humboldt County, Nevada
R. L. Erickson, S.P. Marsh
1971, Miscellaneous Field Studies Map 315
Detailed geologic and geochemical studies of the four 7 1/2-minute quadrangles that make up the Edna Mountain 15-minute quadrangle in Humboldt County, Nevada, were begun during the 1969 summer field season. The objectives of the project are to map the geology of this struct urally complex area at 1:24·,000 scale...
Geochemical, aeromagnetic, and generalized geologic maps showing distribution and abundance of mercury and arsenic, Golconda and Iron Point quadrangles, Humboldt County, Nevada
R. L. Erickson, S.P. Marsh
1971, Miscellaneous Field Studies Map 312
Detailed geologic and geochemical studies of the four 7 1/2-minute wuadrangles that make up the Edna Mountain 15-minute quadrangle in Humboldt County, Nevada, were begun druring the 1969 summer field season. The objectives of the project are to map the geology of this structurally complex area at 1:24,000 scale and to...
Distribution of copper, lead, zinc, mercury, and arsenic in the surface sediments off the coast of northwestern Alaska
Peter Barnes, Kam Wo Leong
1971, Miscellaneous Field Studies Map 316
Increasing interest in potentially harmful substances utilized and discarded by man has raised question about the normal distribution of chemical elements in the natural environment.  This interest prompted a baseline study of a pristine region off the northern coast of Alaska.  Information was gathered on currents, water clarity, nutrients, temperature...
Preliminary photointerpretation map of landslide and other surficial deposits of the Mount Diablo area, Contra Costa and Alameda Counties, California
Tor H. Nilsen
1971, Miscellaneous Field Studies Map 310
The map shows the distribution of landslide and other surficial deposits by presenting the writer's best judgement regarding the origins of the various parts of the present landscape. It is based completely on the interpretation of aerial photographs through a stereoscope, which permits a three-dimentional relief model of the ground...
Map showing locations of samples dated by radiocarbon methods in the San Francisco Bay region
Robert H. Wright
1971, Miscellaneous Field Studies Map 317
Radiocarbon dating is an important interdisciplinary tool for studies involving events and processes during the last 40,000 years of earth history, including studies involving marine transgressions and regressions, land subsidence, climatic changes, sedimentation rates and patterns, fault movements, and archaeology, among others. The potential value of a radiocarbon date is diminished,...
Municipal and industrial wastewater loading in the San Francisco Bay, California, 1970
W. G. Hines, R.H. Palmer
1971, Miscellaneous Field Studies Map 332
The purpose of this release is to describe the approximate volumes and significant pollutional loading attributable to municipal and industrial wastewater discharged into the San Francisco Bay. The six receiving-water regions (fig.1) are the same as those used previously by Pearson, Storrs, and Selleck (1969) in describing results of the comprehensive...
Geologic map of the Myrtle Point area, Coos County, Oregon
Ewart Merlin Baldwin
1969, Miscellaneous Field Studies Map 302
The mapped area lies in theo southern end of the Coos Bay coal field. Coal occurs onle in the upper and lower members of the Coaledo Formation. Nearly all the coal mined in the Coos Bay coal field was from the upper member of the Coaledo Formation. In the mapped...
Map of southeastern Maine showing heavy metals in stream sediments
Edwin V. Post, William L. Lehmbeck, William H. Dennen, Gary A. Nowlan
1967, Miscellaneous Field Studies Map 301
This map presents the initial results of a geochemical reconnaissance of stream sediment in southeastern Maine. Its purpose is to identify metal-rich areas that might be favorable for further detailed exploration. ...