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January 1, 1987

Geologic map of the Desatoya Mountains Wilderness Study Area, Churchill and Lander counties, Nevada

No abstract available.

January 1, 1987

Geologic map of the Diamond Butte Quadrangle, Malheur County, Oregon

No abstract available.

January 1, 1987

Geologic map of the Dry Creek Bench Quadrangle, Malheur County, Oregon

No abstract available.

January 1, 1987

Geologic map of the east part of the San Francisco Volcanic Field, north-central Arizona

The geologic map of the east part of the San Francisco volcanic field (called the East map area) is one of five adjoining geologic maps (fig. 1) prepared under the Geothermal Research Program of the U.S. Geological Survey as a basis for interpreting the history of magmatic activity in the volcanic field. This map is a revision of an earlier one (Moore and Wolfe, 1976). Detail of pyroclastic and al

San Francisco Volcanic Field

January 1, 1987

Geologic map of the eastern equatorial region of Mars

The Mariner 9 mission in the early 1970’s provided the first comprehensive view of the geology of Mars (McCauley and others, 1972, Masursky, 1973) and led to the derivation of the first global geologic map (Carr and others, 1973). These preliminary studies were followed by more comprehensive mapping coordinated with the U.S. Geological Survey. Thirty quadrangles at a scale of 1:5,000,000 were prod

January 1, 1987