Ethoxyresorufin-O-deethylase (EROD) activity in fish as a biomarker of chemical exposure
J.J. Whyte, R.E. Jung, C. J. Schmitt, D. E. Tillitt
2000, Critical Reviews in Toxicology (30) 347-570
This review compiles and evaluates existing scientific information on the use, limitations, and procedural considerations for EROD activity (a catalytic measurement of cytochrome P4501A induction) as a biomarker in fish. A multitude of chemicals induce EROD activity in a variety of fish species, the most potent inducers being structural analogs...
Nutrients and pesticides in the Mississippi River Basin, Minnesota and Wisconsin, 1971-94
J. R. Stark, J. D. Fallon, S. E. Kroening
2000, Conference Paper
No abstract available....
History and current status of the Laysan Duck (Anas laysanensis) in captivity
M.H. Reynolds, K.L. Kozar
2000, 'Elepaio (60) 60-65
No abstract available....
Urban seismic experiments investigate Seattle fault and basin
Thomas M. Brocher, Thomas L. Pratt, Ken C. Creager, Robert S. Crosson, William P. Steele, Craig S. Weaver, Arthur D. Frankel, Anne Trohu, Catherine M. Snelson, Kate C. Miller, Steven H. Harder, Uri S. ten Brink
2000, Eos Science News (81) 542-552
In the past decade, Earth scientists have recognized the seismic hazards that crustal faults and sedimentary basins pose to Seattle, Washington (Figure 1). In 1998, the US. Geological Survey and its collaborators initiated a series of urban seismic studies of the upper crust to better map seismogenic structures and sedimentary...
Spherical and ellipsoidal volcanic sources at Long Valley caldera, California, using a genetic algorithm inversion technique
K. Tiampo, J. B. Rundle, J. Fernandez, J. O. Langbein
2000, Journal of Volcanology and Geothermal Research (102) 189-206
We model the second inflation period at Long Valley caldera, California using a genetic algorithm technique and high quality geodetic measurements of elevation changes and baseline extensions. We compare two source inversions for both spherical Mogi point sources and the finite prolate ellipsoid of Yang and Davis. A sensitivity analysis...
The Goldfield mining district, Nevada: an acid sulfate bonanza gold deposit
Barnaby W. Rockwell
2000, Conference Paper, Proceedings of the 14th International Conference for Applied Geologic Remote Sensing
This paper provides an introduction to the geology, ore deposits, and fluid geochemistry of the Goldfield mining district, Esmerelda and Nye Counties, Nevada. Also included is a brief interpretation of mineral maps of the western half of the district which were recently produced from remotely sensed imagery acquired by the...
Constraints on timing and rates of late Cenozoic incision by the Colorado River in Glenwood Canyon, Colorado: A preliminary synopsis
Robert M. Kirkham, Michael J. Kunk, Bruce Bryant, Randall K. Streufert
2000, Conference Paper, Colorado Geological Survey Proceedings of a symposium on Colorado River origin and evolution
No abstract available....
Pseudomulceodens: A Mississippian Rostroconch from Mexico
S.A. Quiroz-Barroso, John Pojeta Jr., Francisco Sour-Tovar, Salvador Morales-Soto
2000, Journal of Paleontology (74) 1184-1186
This finding of Pseudomulceodens in Mississippian-age rocks of the Santiago Formation provides the first evidence of the molluscan class Rostroconchia in Mexico. Elsewhere in North American Mississippian rocks the class occurs in Arkansas (Hoare et al., 1982, 1988); Illinois (Weller, 1916); Indiana (Beede, 1906); Iowa (White and Whitfield, 1862); Michigan...
Holocene relative sea level changes along the Seattle Fault at Restoration Point, Washington
Brian Sherrod, Robert C. Bucknam, Estella B. Leopold
2000, Quaternary Research (54) 384-393
At a marsh on the hanging wall of the Seattle fault, fossil brackish water diatom and plant seed assemblages show that the marsh lay near sea level between ∼7500 and 1000 cal yr B.P. This marsh is uniquely situated for recording environmental changes associated with past earthquakes on the Seattle...
Publications of the Western Earth Surface Processes Team, 1999
Paul Stone, Charles L. Powell II
2000, Open-File Report 2000-215
The Western Earth Surfaces Processes Team (WESPT) of the U.S. Geological Survey, Geologic Division (USGS, GD), conducts geologic mapping and related topical earth- science studies in the western United States. This work is focused on areas where modern geologic maps and associated earth-science data are needed to address key societal...
Streamflow and water-quality data for the Blackfoot River basin, western Montana, September 1995 through May 1997
Sean M. Lawlor
2000, Open-File Report 2000-80
Locations and ages of middle Tertiary volcanic centers in coastal California
Richard G. Stanley, Douglas S. Wilson, Patricia A. McCrory
2000, Open-File Report 2000-154
This report includes a map and three tables that summarize available information on the locations and ages of late Oligocene to middle Miocene volcanic centers in coastal California. This information, in turn, provides supporting documentation for a planned formal publication by D.S. Wilson, P.A. McCrory, and R.G. Stanley on the...
Geologic map of the Jermanis Coal Field, Central Armenia
Michael E. Brownfield, Artur Martirosyan, B.S. Pierce, E. A. Johnson
2000, Miscellaneous Field Studies Map 2350
No abstract available....
Simulation of aquifer tests and ground-water flowpaths at the local scale in fractured shales and sandstones of the Brunswick Group and Lockatong Formation, Lansdale, Montgomery County, Pennsylvania
Daniel J. Goode, Lisa A. Senior
2000, Open-File Report 2000-97
The U.S. Geological Survey, as part of technical assistance to the U.S. Environmental Protection Agency, has constructed and calibrated models of local-scale ground-water flow in and near Lansdale, Pa., where numerous sources of industrial contamination have been consolidated into the North Penn Area 6 Superfund Site. The local-scale models incorporate...
Gold recycling; a materials flow study
Earle B. Amey
2000, Open-File Report 2000-195
This materials flow study includes a description of trends in consumption, loss, and recycling of gold-containing materials in the United States in 1998 in order to illustrate the extent to which gold is presently being recycled and to identify recycling trends. The quantity of gold recycled, as a percent of...
Baseline surveys of rocky intertidal ecological resources at Point Loma, San Diego
John M. Engle, Gary E. Davis
2000, Open-File Report 2000-61
Data used for calculating chloride flux out of Yellowstone National Park for the water years 1983-1999
Irving Friedman, Daniel R. Norton
2000, Open-File Report 2000-194
Finite-element analysis of the Woodway Landslide, Washington
William Z. Savage, R.L. Baum, M.M. Morrissey, B.P. Arndt
2000, Bulletin 2180
Tree and shrub community monitoring protocol for Channel Islands National Park, California
Kathryn McEachern
2000, Open-File Report 2000-74
The Significance of Field Growth and the Role of Enhanced Oil Recovery
Water Resources Division, U.S. Geological Survey
2000, Fact Sheet 115-00
Water-quality assessment of the Eastern Iowa Basins: Hydrologic and biologic data, October 1996 through September 1998
Kimberlee K. Akers, Denise L. Montgomery, Daniel E. Christiansen, Mark E. Savoca, Douglas J. Schnoebelen, Kent Becher, Eric M. Sadorf
2000, Open-File Report 2000-67
Hydrologic and biologic data collected from October 1996 through September 1998 in the Eastern Iowa Basins study unit of the U.S. Geological Survey National Water-Quality Assessment Program are presented in this report. Monthly data collected from 12 sites on rivers and streams included measurements of physical properties and determinations of...
Geologic map of the Ennis 30' x 60' quadrangle, Madison and Gallatin Counties, Montana, and Park County, Wyoming
Karl S. Kellogg, Van S. Williams
2000, IMAP 2690
The Ennis 1:100,000 quadrangle lies within both the Laramide (Late Cretaceous to early Tertiary) foreland province of southwestern Montana and the northeastern margin of the middle to late Tertiary Basin and Range province. The oldest rocks in the quadrangle are Archean high-grade gneiss, and granitic to ultramafic intrusive rocks that are...
Pliocene and Pleistocene evolution of the Mojave River, and associated tectonic development of the Transverse Ranges and Mojave Desert, based on borehole stratigraphy studies near Victorville, California
Brett F. Cox, John W. Hillhouse
2000, Open-File Report 2000-147
No abstract available....
Trends in precipitation and streamflow in the Fountain Creek watershed, southeastern Colorado, 1977-99
Stogner
2000, Fact Sheet 136-00
Historically active volcanoes in Alaska - a quick reference
Kristi L. Wallace, Robert G. McGimsey, Thomas P. Miller
2000, Fact Sheet 118-00
