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Browse more than 160,000 publications authored by our scientists over the past 100+ year history of the USGS.  Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.

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Origin of the Mima Mounds, Thurston County region, Washington

There has been recent favorable consideration of the idea that the Mima mounds were made by gophers. The writer believes the evidence indicates that gophers function only in the reworking of the mound material, not in the primary construction. The plausibility of the earlier glacial or periglacial theory has been increased by recent knowledge of permafrost and of the deposits made by combined wate
Authors
R. C. Newcomb
By
Water Resources Mission Area, Washington Water Science Center

Ostracoda from wells in North Carolina, Part 1, Cenozoic Ostracoda

No abstract available.
Authors
Frederick M. Swain

Ostracoda from wells in North Carolina, Part 2, Mesozoic Ostracoda

No abstract available.
Authors
Frederick M. Swain

Ostracodes from the upper part of the Sundance formation of South Dakota, Wyoming, and southern Montana

No abstract available.
Authors
Frederick M. Swain, James A. Peterson

Pastora Peak SW, preliminary geologic map of part of the Carrizo mountains area, northeastern Arizona

No abstract available.
Authors
J.D. Strobell

Pegmatites of the Crystal Mountain district, Larimer County, Colorado

The Front Range of Colorado is composed chiefly of schists of the pre-Cambrian Idaho Springs formation which have been intruded by a variety of granitic batholiths. In the Crystal Mountain district the Mount Olympus granite, a satellite of the Longs Peak batholith, forms sills and essentially concordant multiple intrusions in quartz-mica schist that dips southward at moderate to steep angles. A gr
Authors
William R. Thurston

Pegmatites of the Crystal Mountain district, Larimer County, Colorado

No abstract available.
Authors
W. R. Thurston

Perlite deposit near Healy, Alaska

No abstract available.
Authors
Clyde Wahrhaftig, Richard A. Eckhart

Phosphate deposits of the Concepcion del Oro district, Zacatecas, Mexico

No abstract available.
Authors
Cleaves Lincoln Rogers, Salvador Ulloa, Eugenio Tavera

Phosphatic rocks in the Deer Creek-Wells Canyon area, Idaho

No abstract available.
Authors
Wayne Russell Lowell

Photogeologic map of Bluff 14 quadrangle, San Juan County, Utah

No abstract available.
Authors
Richard G. Ray

Photogeologic map of Clay Hills 12 quadrangle, San Juan County, Utah

No abstract available.
Authors
William August Fischer