Maps

Explore geologic and other maps related to the USGS Energy Resources Program.

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January 1, 1982

Map showing sampled radiolarian localities in the western Paleozoic and Triassic belt, Klamath Mountains, California Map showing sampled radiolarian localities in the western Paleozoic and Triassic belt, Klamath Mountains, California

The western Paleozoic and Triassic belt, the largest of several major subdivisions of the Klamath Mountains geologic province, extends 300 km northward from the south end of the province in California to the north end of the province in Oregon (see inset map). The rocks of the belt are mainly sedimentary and volcanic, including tuff, cherty tuff, chert, argillite, limestone, and volcanic...

Geology, Energy, and Minerals Mission Area, Energy Resources Program, Mineral Resources Program, National Laboratories Program, Science and Decisions Center, Geology, Minerals, Energy, and Geophysics Science Center

January 1, 1982

Map showing relation of carbon dioxide-rich springs and gas wells to the tectonic framework of the conterminous United States Map showing relation of carbon dioxide-rich springs and gas wells to the tectonic framework of the conterminous United States

No abstract available.

January 1, 1981

Maps showing aeromagnetic anomalies, faults, earthquake epicenters, and igneous rocks in the southern San Francisco Bay region, California Maps showing aeromagnetic anomalies, faults, earthquake epicenters, and igneous rocks in the southern San Francisco Bay region, California

No abstract available.

January 1, 1978

Aeromagnetic and generalized geologic map of parts of central California Aeromagnetic and generalized geologic map of parts of central California

No abstract available.

January 1, 1976

Map showing limestone and selected fossil localities in the Klamath Mountains Province, California and Oregon Map showing limestone and selected fossil localities in the Klamath Mountains Province, California and Oregon

No abstract available.

January 1, 1975

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...