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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse almost 1,000 books authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
Filter Total Items: 974
Chlorinated hydrocarbons in the marine environment. A report prepared by the Panel on Monitoring Persistent Pesticides in the Marine Environment of the Committee on Oceanography Chlorinated hydrocarbons in the marine environment. A report prepared by the Panel on Monitoring Persistent Pesticides in the Marine Environment of the Committee on Oceanography
SUMMARY AND RECOMMENDATIONS : The oceans are an ultimate accumulation site for the persistent chlorinated hydrocarbons. As much as 25 percent of the DDT compounds produced to date may have been transferred to the sea. The amount of DDT compounds in the marine biota is estimated to be less than 0.1 percent of total production, yet this amount has produced a demonstrable impact upon the...
Authors
E.D. Goldberg, P. Butler, P. Meier, D. Menzel, G. Paulik, R. Risebrough, L.F. Stickel
Identification of fish pathogenic bacteria: Book 2B Identification of fish pathogenic bacteria: Book 2B
No abstract available at this time
Authors
G. L. Bullock
Clay minerals: A guide to their x-ray identification Clay minerals: A guide to their x-ray identification
This paper is a guide to the X-ray examination of clay minerals; it incorporates background information concerning the principal crystallographic features of clay minerals, and how this is used in the X-ray identification of these minerals, together with laboratory techniques and the application of X-ray diffractometry to the diagnosis of the clay minerals in natural sedimentary...
Authors
Dorothy Carroll
Geology and regional metamorphism of some high-grade cordierite gneisses, Front Range, Colorado Geology and regional metamorphism of some high-grade cordierite gneisses, Front Range, Colorado
Cordierite is common in regional metamorphic gneisses of Precambrian age in the central part of the Front Range. It occurs in discontinuous stratigraphic units that are structurally a minor component, except locally, of the thick succession of biotite gneisses that comprise the widespread Idaho Springs Formation. The rocks have mineral assemblages, that are characteristic of the...
Authors
Dolores J. Gable, Paul K. Sims
History of the Redwall Limestone of northern Arizona History of the Redwall Limestone of northern Arizona
Throughout most of northern Arizona the Redwall Limestone of Mississippian age is readily divisible into four lithologic units, designated in ascending order as the Whitmore Wash, Thunder Springs, Mooney Falls, and Horseshoe Mesa Members. The first and third members are thick-bedded to massive carbonate rock. The Horseshoe Mesa Member is relatively thin-bedded limestone, and the Thunder...
Authors
Edwin D. McKee, Raymond C. Gutschick
Comparative ecology of pinyon mice and deer mice in Mesa Verde National Park, Colorado Comparative ecology of pinyon mice and deer mice in Mesa Verde National Park, Colorado
No abstract available at this time
Authors
Charles L. Douglas
Biostratigraphic classification of the marine Triassic in North America Biostratigraphic classification of the marine Triassic in North America
Ammonoid faunas representative of every major part of Triassic time occur at one place or another in the marine Triassic strata of western and arctic North America. Though some intracontinental provincialism is evident, particularly among Lower and Middle Triassic ammonoid faunas, various local sections where parts of the faunal sequence are preserved—sections in southeastern Idaho...
Authors
N. J. Silberling, E. T. Tozer
Whitewings Whitewings
No abstract available.
Authors
C. Cottam, J.B. Trefethen, G.B. Saunders, P.B. Uzzell, S. Gallizioli, W.H. Kiel, J.A. Ness, J. Stair
Geology and mineral resources of Page County Geology and mineral resources of Page County
No abstract available.
Authors
R. M. Allen
Guidebook for the Annual Field Conference of Pennsylvania Geologists: Geology in the region of the Delaware to Lehigh water gaps Guidebook for the Annual Field Conference of Pennsylvania Geologists: Geology in the region of the Delaware to Lehigh water gaps
No abstract available.
Authors
Jack B. Epstein, Anita G. Epstein
Parasites of North American freshwater fishes Parasites of North American freshwater fishes
No abstract available at this time
Authors
G. L. Hoffman