Hydrogeology, land-subsidence projections, and earth-fissure hazards along the Tucson Aqueduct alignment of the Central Arizona Project in Pinal and Pima Counties, Arizona
Herbert H. Schumann, Beth M. Wrege, Wesley D. Meehan
2002, Water-Resources Investigations Report 2002-4028
No abstract available....
Occurrence of bacteria in Blue Marsh Lake and selected tributaries, Berks County, Pennsylvania: September-October 2001
Michele L. Zimmerman
2002, Fact Sheet 036-02
The Commonwealth of Pennsylvania has water-quality standards that limit the number of specific bacteria in water that is considered safe for recreational use. Bacteria such as fecal streptococci, fecal coliforms, and Escherichia coli (E. coli) are used to assess recreational water quality because they usually live in the intestines of...
Application of advanced geophysical logging methods in the characterization of a fractured-sedimentary bedrock aquifer, Ventura County, California
John Williams, John W. Lane Jr., Kamini Singha, F. Peter Haeni
2002, Water-Resources Investigations Report 2000-4083
An integrated suite of advanced geophysical logging methods was used to characterize the geology and hydrology of three boreholes completed in fractured-sedimentary bedrock in Ventura County, California. The geophysical methods included caliper, gamma, electromagnetic induction, borehole deviation, optical and acoustic televiewer, borehole radar, fluid resistivity, temperature, and electromagnetic flowmeter. The...
Lake Pontchartrain Basin: Bottom sediments and related environmental resources
Frank T. Manheim, Laura Hayes, editor(s)
2002, Professional Paper 1634
Lake Pontchartrain is the largest estuary southern Louisiana. It is an important recreational, commercial, and environmental resource for New Orleans and southwestern Louisiana. This publication is part of a 5-year cooperative program led by the USGS on the geological framework and sedimentary processes of the Lake Pontchartrain Basin.This presentation is...
Mineralogical characterization of strata of the Meade Peak phosphatic shale member of the Permian Phosphoria Formation: Channel and individual rock samples of measured section J and their relationship to measured sections A and B, central part of Rasmussen Ridge, Caribou County, Idaho
A. C. Knudsen, M. E. Gunter, J. R. Herring, R. I. Grauch
2002, Open-File Report 2002-125
The Permian Phosphoria Formation of southeastern Idaho hosts one of the largest phosphate deposits in the world. Despite the economic significance of this Formation, the fine-grained nature of the phosphorite has discouraged detailed mineralogical characterization and quantification studies. Recently, selenium and other potentially toxic trace elements in mine wastes have...
Large-scale cycles of Holocene deposition and erosion at the entrance to Willapa Bay, Washington: Implications for future land loss and coastal change
Robert A. Morton, Noreen A. Purcell, Russell L. Peterson
2002, Open-File Report 2002-46
No abstract available....
Geologic Map of the Central Marysvale Volcanic Field, Southwestern Utah
Peter D. Rowley, Charles G. Cunningham, Thomas A. Steven, Jeremiah B. Workman, John J. Anderson, Kevin M. Theissen
2002, IMAP 2645-A
The geologic map of the central Marysvale volcanic field, southwestern Utah, shows the geology at 1:100,000 scale of the heart of one of the largest Cenozoic volcanic fields in the Western United States. The map shows the area of 38 degrees 15' to 38 degrees 42'30' N., and...
Materials in the economy; material flows, scarcity, and the environment
Lorie A. Wagner
2002, Circular 1221
The importance of materials to the economy of the United States is described, including the levels of consumption and uses of materials. The paths (or flows) that materials take from extraction, through processing, to consumer products, and then final disposition are illustrated. Scarcity and environmental issues as they relate to...
Technical guidelines for the implementation of the Advanced National Seismic System
ANSS Technical Integration Committee
2002, Open-File Report 2002-92
The Advanced National Seismic System (ANSS) is a major national initiative led by the US Geological Survey that serves the needs of the earthquake monitoring, engineering, and research communities as well as national, state, and local governments, emergency response organizations, and the general public. Legislation authorizing the ANSS was passed...
Moloka'i fieldtrip guidebook: Selected aspects of the geology, geography, and coral reefs of Moloka'i
Susan A. Cochran, Lucile M. Roberts, Kevin R. Evans
2002, Open-File Report 2002-158
This guidebook was compiled with the express purpose of describing the general geology of Moloka'i and those locations with significance to the U.S. Geological Survey's study of Moloka'i's coral reef, a part of the U.S. Department of Interior's 'Protecting the Nation's Reefs' program. The first portion of the guidebook describes the...
Magnetic susceptibilities measured on rocks of the upper Cook Inlet, Alaska
A.A. Alstatt, R. W. Saltus, R.L. Bruhn, Peter J. Haeussler
2002, Open-File Report 2002-139
We have measured magnetic susceptibility in the field on most of the geologic rock formations exposed in the upper Cook Inlet near Anchorage and Kenai, Alaska. Measured susceptibilities range from less than our detection limit of 0.01 x 10-3 (SI) to greater than 100 x 10-3 (SI). As expected, mafic...
Implosion, earthquake, and explosion recordings from the 2000 Seattle Kingdome Seismic Hazards Investigation of Puget Sound (SHIPS), Washington
Thomas M. Brocher, Thomas L. Pratt, Craig S. Weaver, Catherine M. Snelson, Arthur D. Frankel
2002, Open-File Report 2002-123
This report describes seismic data obtained in Seattle, Washington, March 24-28, 2000, during a Seismic Hazards Investigation of Puget Sound (SHIPS). The seismic recordings obtained by this SHIPS experiment, nicknamed Kingdome SHIPS, were designed to (1) measure site responses throughout Seattle and to (2) help define the location of the...
Distribution of high-temperature (>150 °C) geothermal resources in California
John H. Sass, Susan S. Priest
2002, Open-File Report 2002-132
California contains, by far, the greatest geothermal generating capacity in the United States, and with the possible exception of Alaska, the greatest potential for the development of additional resources. California has nearly 2/3 of the US geothermal electrical installed capacity of over 3,000 MW. Depending on assumptions regarding reservoir characteristics...
Generalized surficial geologic map of the Pueblo 1° x 2° quadrangle, Colorado
D. W. Moore, A. W. Straub, M. E. Berry, M. L. Baker, T. R. Brandt
2002, Miscellaneous Field Studies Map 2388
Fifty-three types of surficial geologic deposits and residual materials of Quaternary age are described in a pamphlet and located on a map of the greater Pueblo area, in part of the Front Range, in the Wet and Sangre de Cristo Mountains, and on the plains east of Colorado Springs and...
Evaluating behavior of oxygen, nitrate, and sulfate during recharge and quantifying reduction rates in a contaminated aquifer
Jennifer T. McGuire, David T. Long, Michael J. Klug, Sheridan K. Haack, David W. Hyndman
2002, Environmental Science & Technology (36) 2993-2700
This study evaluates the biogeochemical changes that occur when recharge water comes in contact with a reduced aquifer. It specifically addresses (1) which reactions occur in situ, (2) the order in which these reactions will occur if terminal electron acceptors (TEAs) are introduced simultaneously, (3) the rates of these reactions,...
Black carbon from the Mississippi river: Quantities, sources, and potential implications for the global carbon cycle
Siddhartha Mitra, Thomas S. Bianchi, Brent A. McKee, Martha Sutula
2002, Environmental Science and Technology (36) 2296-2302
Black carbon (BC) may be a major component of riverine carbon exported to the ocean, but its flux from large rivers is unknown. Furthermore, the global distribution of BC between natural and anthropogenic sources remains uncertain. We have determined BC concentrations in suspended sediments of the Mississippi River, the 7th...
U. S. Geological Survey water resources programs
Robert M. Hirsch
2002, Conference Paper, 46th annual New Mexico water conference
No abstract available. ...
Surficial geologic maps along the riparian zone of the Animas River and its headwater tributaries, Silverton to Durango, Colorado, with upper Animas River watershed gradient profiles
Robert W. Blair Jr., Douglas B. Yager, Stanley E. Church
2002, Data Series 71
This product consists of Adobe Acrobat .PDF format documents for 10 surficial geologic strip maps along the Animas River watershed from its major headwater tributaries, south to Durango, Colorado. The Animas River originates in the San Juan Mountains north of the historic mining town of Silverton, Colorado. The surficial geologic...
Determination of methyl mercury by aqueous phase ethylation, followed by gas chromatographic separation with cold vapor atomic fluorescence detection
John F. De Wild, Mark L. Olsen, Shane D. Olund
2002, Open-File Report 2001-445
A recent national sampling of streams in the United States revealed low methyl mercury concentrations in surface waters. The resulting median and mean concentrations, calculated from 104 samples, were 0.06 nanograms per liter (ng/L) and 0.15 ng/L, respectively. This level of methyl mercury in surface water in the United States...
Investigation of an earthquake swarm near Trinidad, Colorado, August-October 2001
Mark E. Meremonte, John C. Lahr, Arthur D. Frankel, James W. Dewey, Anthony J. Crone, Dee E. Overturf, David L. Carver, W. Thomas Bice.
2002, Open-File Report 2002-73
A swarm of 12 widely felt earthquakes occurred between August 28 and September 21, 2001, in the area west of the town of Trinidad, Colorado. The earthquakes ranged in magnitude between 2.8 and 4.6, and the largest event occurred on September 5, eight days after the initial M 3.4...
Modified Mercalli Intensities (MMI) for some earthquakes in eastern North America (ENA) and empirical MMI site corrections for towns in ENA
W. H. Bakun, A. C. Johnston, M. G. Hopper
2002, Open-File Report 2002-109
Modified Mercalli Intensity (MMI) assignments for earthquakes in eastern North America (ENA) were used by Bakun et al. (submitted) to develop a model for eastern North America for estimating the location and moment magnitude M of earthquakes from MMI observations. MMI assignments for most of the earthquakes considered by Bakun...
Alaska resource data file: Lime Hills quadrangle
T. L. Hudson, M.A. Millholland
2002, Open-File Report 2002-76
No abstract available....
A digital atlas of hydrocarbon accumulations within and adjacent to the National Petroleum Reserve-Alaska (NPRA)
Naresh Kumar, Kenneth J. Bird, Philip H. Nelson, John A. Grow, Kevin R. Evans
2002, Open-File Report 2002-71
The United States Geological Survey (USGS) has initiated a project to reassess the hydrocarbon potential of the NPRA. Although exploration for hydrocarbons in the NPRA was initiated in 1944, it has taken fifty years for the first commercial discovery to be made. That discovery, the Alpine field (projected recoverable reserves...
Principal facts for 463 gravity stations in the vicinity of Tangle Lakes, east-central Alaska
Robert L. Morin, Jonathan M. G. Glen
2002, Open-File Report 2002-96
During the summer of 2001, a gravity survey was conducted in the vicinity of Tangle Lakes, east-central Alaska. Measurements of 87 gravity stations were made. The Tangle Lakes area is located about 25 km west of Paxson and north of the Denali Highway. The gravity survey is located on the...
Field-trip guide to the southeastern foothills of the Santa Cruz Mountains in Santa Clara County, California
Philip W. Stoffer, Paula Messina
2002, Open-File Report 2002-121
This field trip is an introduction to the geology of the southeastern foothills of the Santa Cruz Mountains in southern Santa Clara County. Seven stops include four short hikes to access rock exposures and views of the foothills east of Loma Prieta Peak between Gilroy and San José. Field-trip destinations...
