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Geologic map showing springs rich in carbon dioxide or or chloride in California Geologic map showing springs rich in carbon dioxide or or chloride in California
Carbon dioxide- and chloride-rich springs occur in all geologic provinces in California, but are most abundant in the Coast Ranges and the Great Valley. The carbon-dioxide-rich springs issue mainly from Franciscan terrane; they also are rich in boron and are of the metamorphic type (White, 1957). Based on isotopic data, either the carbon dioxide or the water, or both, may be of...
Gravity map of the Nabesna Quadrangle, Alaska Gravity map of the Nabesna Quadrangle, Alaska
The gravity map of the Nabesna quadrangle indicates significant variations in the densities and thicknesses of the rock units that underlie the quadrangle. Most of this gravity relief is indirectly related to regional topographic relief or lithologic variations that are revealed in the rock outcrops. However, some significant features of the gravity map are not easily explained by the...
Index of Mariner 9 Albedo mapping pictures of Mars Index of Mariner 9 Albedo mapping pictures of Mars
This photoindex shows locations of the Mariner 9 pictures that are the primary source materials for the albedo marking, overlays in the U.S. Geological Survey's "Atlas of Mars." All pictures were taken by the "A" camera. The individual pictures were selected to provide complete coverage of the planet at the smallest scales possible with a minimum of overlap. They thus provide the most...
Index of Mariner 9 mapping pictures of Mars Index of Mariner 9 mapping pictures of Mars
This photoindex shows nominal locations of the set of Mariner 9 pictures taken by the "A" camera that are the primary source materials for the 1:5,000,000 Mars maps. These pictures were selected because they have the highest resolution of any set with contiguous coverage of the planet. Most or the pictures were token according to sequences designed for mapping by the Mariner 9 imaging...