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Filter Total Items: 9495

Geology and fuel resources of the Upper Cretaceous rocks of the Barker dome-Fruitland area, San Juan County, New Mexico

No abstract available.

Geology and zinc-lead deposits in the Couler Valley area, Dubuque County, Iowa

Geologic investigations were begun in the Iowa portion of the Wisconsin-Illinois-Iowa zinc-lead district to appraise its potentialities: (1) for zinc ore in strata that elsewhere in the mining district contain large zinc ore bodies and (2) for lead and zinc deposits of the type that were mined extensively in Dubuque County, Iowa, during the 19th century.

Geology and zinc-lead deposits in the Durango area, Dubuque County, Iowa

Geologic investigations were begun in Iowa to appraise; (1) the possible occurrence of zinc ore in strata that elsewhere in the Upper Mississippi Valley zinc-lead district have been the principal sites of zinc concentration; and (2) lead ore of the type known as "crevice deposits," which were mined so extensively during the 19th century in Dubuque County, Iowa, but have been mined very little sinc

Geology of anthracite in the eastern part of the Shenandoah quadrangle, Pennsylvania

No abstract available.

Geology of anthracite in the western part of the Delano quadrangle, Pennsylvania

No abstract available.

Geology of anthracite in the western part of the Shenandoah quadrangle, Pennsylvania

No abstract available.

Geology of the Marys Peak and Alsea quadrangles, Oregon

No abstract available.

Geology of the northern part of the Girard coal field, Richland County, Montana

No abstract available.

Geology of the Sheridan and McMinnville quadrangles, Oregon

No abstract available.

Geology of the Shotgun Butte area, Fremont County, Wyoming

No abstract available.

Hamm Canyon quadrangle, Colorado

No abstract available.

Map of New Mexico showing test wells for oil and gas, oil and gas fields, and pipelines

No abstract available.