GIS Data
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Geologic map of the Lassen Peak, Chaos Crags, and Upper Hat Creek area, California Geologic map of the Lassen Peak, Chaos Crags, and Upper Hat Creek area, California
This digital publication contains all the information used to publish U.S. Geological Survey Geologic Investigations Series I-2723 (Christiansen and others, 2002). The map shows the distribution and relationships of volcanic and surficial-sedimentary deposits in an area of Lassen Volcanic National Park and vicinity. Emphasis is on products of the 1914-1917 eruptions of Lassen Peak and...
Geologic map of the Low Wassie Quadrangle, Oregon and Shannon counties, Missouri Geologic map of the Low Wassie Quadrangle, Oregon and Shannon counties, Missouri
The bedrock exposed in the Low Wassie Quadrangle, Missouri, comprises Late Cambrian and Early Ordovician aged dolomite, sandstone, and chert. The sedimentary rocks are nearly flat-lying except where they are adjacent to faults. The carbonates are karstified and the area contains numerous sinkholes, springs, caves, and losing-streams. This map is one of several being produced under the U...
Controlled photomosaic map of Callisto JC 15M CMN Controlled photomosaic map of Callisto JC 15M CMN
This sheet is one in a series of maps of the Galilean satellites of Jupiter at a nominal scale of 1:15,000,000. This series is based on data from the Galileo Orbiter Solid-State Imaging (SSI) camera and the cameras of the Voyager 1 and 2 spacecraft. Mercator and Polar Stereographic projections used for this map of Callisto are based on a sphere having a radius of 2,409.3 km. The scale is...
Geologic map of the Bell Regio Quadrangle (V-9), Venus Geologic map of the Bell Regio Quadrangle (V-9), Venus
The Magellan spacecraft orbited Venus from August 10, 1990, until it plunged into the venusian atmosphere on October 12, 1994. Magellan had the objectives of (1) improving knowledge of the geologic processes, surface properties, and geologic history of Venus by analysis of surface radar characteristics, topography, and morphology and (2) improving knowledge of the geophysics of Venus by...