GIS Data
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Geologic map of upper Clayhole Valley and vicinity, Mohave County, northwestern Arizona Geologic map of upper Clayhole Valley and vicinity, Mohave County, northwestern Arizona
This digital map database is compiled from unpublished data and new mapping by the authors and represents the general distribution of surficial and bedrock geology in the mapped area. Together with the accompanying pamphlet, it provides current information on the geologic structure and stratigraphy of the area. The database delineates map units that are identified by age and lithology
Maps showing sedimentary basins, surface thermal maturity, and indications of petroleum in the Central Alaska Province Maps showing sedimentary basins, surface thermal maturity, and indications of petroleum in the Central Alaska Province
This publication includes two maps (at 1:2,500,000 scale) and a pamphlet that describe sedimentary basins, surface thermal maturity, and 95 reported occurrences of petroleum in natural seeps, wells, and rock outcrops in central Alaska. No commercial petroleum production has been obtained from central Alaska, in contrast to the prolific deposits of oil and gas that have been found and...
Color-coded topography and shaded relief map of the lunar near side and far side hemispheres Color-coded topography and shaded relief map of the lunar near side and far side hemispheres
This publication is a set of three sheets of topographic maps that presents color-coded topographic data digitally merged with shaded relief data. Adopted figure: The figure for the Moon, used for the computation of the map projection, is a sphere with a radius of 1737.4 km. Because the Moon has no surface water, and hence no sea level, the datum (the 0 km contour) for elevations is...
Debris-flow and flooding deposits in coastal Venezuela associated with the storm of December 14-16, 1999 Debris-flow and flooding deposits in coastal Venezuela associated with the storm of December 14-16, 1999
Heavy rainfall from the storm of December 14?16, 1999, triggered thousands of shallow landslides on steep slopes of the Sierra de Avila north of Caracas, Venezuela, and caused flooding and massive debris flows in the channels of major drainages that severely damaged coastal communities along the Caribbean Sea. Within this region we characterized geologic conditions where landslides...