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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: 971
Wetlands: function, assessment, and management: Society of Wetland Scientists 20th annual meeting, Norfolk, Virginia, USA, June 6-12, 1999
No abstract available.
Authors
R. Harold Jones, James E. Perry, Janet R. Keough, Jason S. Goldbert
Progress toward characterization of juvenile materials in lunar pyroclastic deposits
This report and related work describe progress toward remote characterization of the compositions of juvenile materials in the pyroclastic deposits located at Taurus-Littrow and J. Herschel.
Authors
Lisa R. Gaddis
Microbial, algal and fungal strategies for manganese oxidation at a Shade Township coal mine, Somerset County, Pennsylvania
No abstract available.
Authors
E. I. Robbins, D.L. Brant, P.F. Ziemkiewicz
Quantitative models for aggregate: some types and examples from Oklahoma carbonate rocks
Evaluation of data for three engineering variable--absorption, bulk specific gravity, and freeze-thaw durability (350 cycles)--was made for quarries in carbonate rocks in Oklahoma that supply aggregate. It was found that lower Palrozoic carbonate rocks (Cambrian through Devonian) are likely to make a better quality aggregate than upper Paleozoic (Mississippian to Permian) carbonate rocks. In addit
Authors
James D. Bliss
Influence of temperature and substrate on infection rate, triactinomyxon production, and release duration from eastern tubifex worms infected with Myxobolus cerebralis
Salmonid whirling disease is caused by Myxobolus cerebralis, a metazoan parasite with a two host life cycle involving salmonid fish a an aquatic oligochaete, Tubifex tubifex (Wolf, Markiw and Hiltunen, 1986). Whirling disease has been reported in 22 U.S. states with the greatest losses occurring in the salmonid fisheries of western and Midwestern states. Although whirling disease is endemic in t
Authors
Thomas Waldrop, Vicki Blazer, David Smith, Bane Schill, Christine Densmore
Comparative analysis of multisensor satellite monitoring of Arctic sea-ice
This report represents comparative analysis of nearly coincident Russian OKEAN-01 polar orbiting satellite data, Special Sensor Microwave Imager (SSM/I) and Advanced Very High Resolution Radiometer (AVHRR) imagery. OKEAN-01 ice concentration algorithms utilize active and passive microwave measurements and a linear mixture model for measured values of the brightness temperature and the radar backsc
Authors
G. I. Belchansky, Ilia N. Mordvintsev, David C. Douglas
Use Of limestone resources in flue-gas desulfurization power plants in the Ohio River Valley
In 1994, more than 41 of the approximately 160 coal-fired, electrical- power plants within the six-state Ohio River Valley region used flue-gas desulfurization (FGD) units to desulfurize their emissions, an approximately 100% increase over the number of plants using FGD units in 1989. This increase represents a trend that may continue with greater efforts to meet Federal Clean Air Act standards. A
Authors
M. P. Foose, A.F. Barsotti
The riparian restoration ranking (R3) system a tool for setting priorities in a resource-limited world
No abstract available.
Authors
D.A. Falk, M.K. Briggs, W. L. Halvorson
Preliminary effects of water hardness on triactinomyxon production and development from eastern tubifex worms infected with Myxobolus cerebralis
Whirling disease is caused by Myxobolus cerebralis and requires an intermediate oligochaete host identified as Tubifex tubifex (Wolf, Markiw, and Hiltunen, 1986). M. cerebralis spores ingested by the tubifex worms develop into triactinomyxons (tams) that are eventually released into the water column to infect salmonid fish. There may be many environmental parameters, biotic or abiotic, that may
Authors
Thomas B. Waldrop, Christine Densmore, Vicki Blazer, Dave Smith, Bane Schill
Ecotoxicology and risk assessment for wetlands: proceedings from the SETAC Pellston Workshop on Ecotoxicology and Risk Assessment for Wetlands, 30 July-3 August 1995, Fairmont Hot Springs, Anaconda, Montana
No abstract available.
Authors
F.L. Mayer, R.L. Powell, M.K. Nelson, S.J. Klaine, M.G. Henry, G.W. Dickson
An overview of the status of industrial minerals in the United States
The production and consumption of industrial minerals in the United States traditionally have played important roles in mining and in the supply of the bulk of basic raw materials to the economy. This diverse group of minerals extracted and consumed by a variety of industries accounts, on a weight and volume basis, for most mineral-based products consumed in our economy. Industrial minerals form t
Authors
Aldo F. Barsotti
Design approaches in quarrying and pit-mining reclamation
Reclaimed mine sites have been evaluated so that the public, industry, and land planners may recognize there are innovative designs available for consideration and use. People tend to see cropland, range, and road cuts as a necessary part of their everyday life, not as disturbed areas despite their high visibility. Mining also generates a disturbed landscape, unfortunately one that many consider w
Authors
Belinda F. Arbogast