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Merged aeromagnetic map of interior Alaska Merged aeromagnetic map of interior Alaska
No abstract available.
Quaternary Geologic Map of the Lake of the Woods 4 Degrees x 6 Degrees Quadrangle, United States and Canada Quaternary Geologic Map of the Lake of the Woods 4 Degrees x 6 Degrees Quadrangle, United States and Canada
The Quaternary Geologic Map of the Lake of the Woods 4 deg x 6 deg Quadrangle, United States and Canada, was mapped as part of the U.S. Geological Survey Quaternary Geologic Atlas of the United States map series (Miscellaneous Investigations Series I-1420, NM-15). The atlas was begun as an effort to depict the areal distribution of surficial geologic deposits and other materials that...
Satellite image map of Antarctica, 1996 Satellite image map of Antarctica, 1996
No abstract available.
Bathymetry of the southwest flank of Mauna Loa Volcano, Hawaii Bathymetry of the southwest flank of Mauna Loa Volcano, Hawaii
Much of the seafloor topography in the map area is on the southwest submarine flank of the currently active Mauna Loa Volcano. The benches and blocky hills shown on the map were shaped by giant landslides that resulted from instability of the rapidly growing volcano. These landslides were imagined during a 1986 to 1991 swath sonar program of the United States Hawaiian Exclusive Economic...
Conodont color alteration index (CAI) map and conodont-based age determinations for the Winchester 30' x 60' Quadrangle and adjacent area, Virginia, West Virginia, and Maryland Conodont color alteration index (CAI) map and conodont-based age determinations for the Winchester 30' x 60' Quadrangle and adjacent area, Virginia, West Virginia, and Maryland
Most of the conodont data presented in this report (table 1) were acquired to support 1:100,000-scale geologic mapping of the Winchester 30' X 60' quadrangle by the U.S. Geological Survey (USGS). Conodonts were chosen to provide a biostratigraphic framework for the Upper Cambrian to Mississippian marine carbonate rocks that make up about 25 percent of the Paleozoic strata exposed in the...
Geologic map of the Krumbo Reservoir Quadrangle, Harney County, Southeastern Oregon Geologic map of the Krumbo Reservoir Quadrangle, Harney County, Southeastern Oregon
The Krumbo Reservoir 7.5-minute quadrangle encompasses parts of the Blitzen Valley and northwestern flank of Steens Mountain in the Basin and Range physiographic province of southeastern Oregon (fig. 1). The entire map area is underlain by a bimodal assemblage of middle and upper Miocene olivine basalt flows and rhyolite ash-flow tuffs (figs. 2 and 3). This assemblage is characteristic...