Book Chapters
Science Quality and Integrity
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 more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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Light attenuation profiling as an indicator of structural changes in coastal marshes
To best respond to natural and human-induced stresses, resource managers and researchers require remote sensing techniques that can map the biophysical characteristics of natural resources on regional and local scales. The implementation of advanced measurement techniques would provide significant improvements in the quantity, quality, and timeliness of biophysical data useful in understanding the
Authors
Elijah Ramsey III, Gene Nelson, Frank Baarnes, R. Spell
Application of borehole radar for monitoring steam-enhanced remediation of a contaminated site in fractured limestone, Maine, USA
No abstract available.
Authors
Colette Gregoire, John W. Lane, Peter K. Joesten
Soils and sediment: Understanding wetland biogeochemistry
No abstract available.
Authors
Stephen Faulkner
Environments of northwestern North America before the last glacial maximum
No abstract available.
Authors
John J. Clague, Rolf Mathewes, Thomas A. Ager
Summary of water quality trends in the Connecticut River, 1968-1998
The Connecticut River has a long history of water quality impairment. From the 1800s to the late 1960s, untreated or minimally treated waste discharges from population centers and industries have caused serious water quality problems. Trend analysis of selected water quality data in Connecticut from 1968 to 1998, collected by the U.S. Geological Survey in cooperation with the Connecticut Departmen
Authors
John R. Mullaney
Leaky coastal margins; examples of enhanced coastal groundwater and surface-water exchange from Tampa Bay and Crescent Beach submarine spring, Florida, USA
No abstract available
Authors
P.W. Swarzenski, J. L. Kindinger
Strength and acoustic properties of Ottawa sand containing laboratory-formed methane gas hydrate
Although gas hydrate occurs in a wide variety of sediment types and is present and even pervasive at some locations on continental margins, little is known about how it forms naturally. Physical properties of the resultant gas hydrate-sediment mixtures, data needed for input into models that predict location and quantity of in situ hydrate are also lacking. Not only do properties of the host mater
Authors
William J. Winters, William F. Waite, David H. Mason
Weathering of the meade peak phosphatic shale member, phosphoria formation: Observations based on uranium and its decay products
Variably weathered outcrop samples of the Meade Peak Phosphatic Shale Member of the Phosphoria Formation have 5-10% of the contained uranium (U) in a form readily extractable by 0.1 M sodium bicarbonate. Fission track radiography of outcrop samples and other less-weathered channel and core samples indicate that this mobile fraction of U is likely hosted by organic matter, secondary iron oxides and
Authors
Robert A. Zielinski, James R. Budahn, Richard I. Grauch, J. B. Paces, K. R. Simmons
Mitigation of earthquake damage
The article describes the use of a geologic map to help mitigate earthquake damage along the Denali Fault where the Trans-Alaska Pipeline crosses. Geologic mapping of bedrock and unconsolidated deposits reveals a history of horizontal right-lateral slip and local vertical separations at the fault. It was determined that the eastern 220 mile of the Denali and Totschunda fault system was the most li
Authors
G. Plafker
The face of the Moon: Lunar volcanoes and volcanic deposits
No abstract available.
Authors
Lisa R. Gaddis
Spatial data acquisition and integration
No abstract available.
Authors
J. Jensen, A. Saalfeld, F. Broome, D. Cowen, K. Price, D. Ramsey, L. Lapine, E. Lynn Usery