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.
Filter Total Items: 6158
Summary of water quality trends in the Connecticut River, 1968-1998 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
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 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 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...
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 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...
Authors
Robert A. Zielinski, James R. Budahn, Richard I. Grauch, J. B. Paces, K. R. Simmons
Organic materials in geology Organic materials in geology
No abstract available.
Authors
K. E. Peters, Frances D. Hostettler
Mitigation of earthquake damage 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...
Authors
George Plafker
The face of the Moon: Lunar volcanoes and volcanic deposits The face of the Moon: Lunar volcanoes and volcanic deposits
No abstract available.
Authors
Lisa R. Gaddis
Spatial data acquisition and integration 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
Introduction to the UCGIS research agenda Introduction to the UCGIS research agenda
No abstract available.
Authors
E. Lynn Usery, Robert B. McMaster
Postscript on the UCGIS and research Postscript on the UCGIS and research
No abstract available.
Authors
D. M. Mark, E. Lynn Usery, Robert B. McMaster
Methane hydrate studies: Delineating properties of host sediments to establish reproducible decomposition kinetics Methane hydrate studies: Delineating properties of host sediments to establish reproducible decomposition kinetics
We have presented a summary of measurements on the physical properties of sediments relevant to methane hydrate recovery. The data includes not only geotechnical determinations, but also the CMT data that gives porosity values and pathways through the sediment material. The results show that CMT techniques can be used to study sediment properties on a micrometer-size scale. Since the...
Authors
Devinder Mahajan, Phillip Servio, Keith W. Jones, Huan Feng, William J. Winters
Los impactos de las actividades relacionadas con el petroleo y el gas en la disminucion de los humedales costeros del delta del Misisipi Los impactos de las actividades relacionadas con el petroleo y el gas en la disminucion de los humedales costeros del delta del Misisipi
No abstract available.
Authors
Jae-Young Ko, John Day, John Barras, Robert Morton, James Johnston, Gregory Steyer, G. Paul Kemp, Ellis Clairain, Russell Theriot