Digital version of "Open-File Report 92-182: Geologic map of the Marl Mountains quadrangle, San Bernardino County, California"
Howard G. Wilshire, David R. Bedford, Teresa Coleman
2002, Open-File Report 2002-271
This is a digital map database version of a previous U.S. Geological Survey Open-File Report, OF92-182. It contains 3 Arc/Info formatted coverages, distributed in Arc Interchange format, a plottable map representation of the database at 1:24,000 scale in Postscript and Adobe PDF formats, and the original map explanation pamphlet in...
Preliminary data from analysis of base-flow separation in part of the Republican River Basin, Nebraska, Kansas, and Colorado
Matthew K. Landon, Virginia L. McGuire
2002, Open-File Report 2002-240
June 2002 floods in the Red River of the North basin in northeastern North Dakota and northwestern Minnesota
Gregg J. Wiche, K.G. Guttormson, S.M. Robinson, G.B. Mitton, B.J. Bramer
2002, Open-File Report 2002-278
The Red River of the North is a complex river system in the north-central plains of the United States. The river continues to affect the people and property within its basin. During June of 2002, major flooding occurred for the third time in 5 years in the Red River of...
Ice Core Depth-Age Relation for Vostok delta-D and Dome Fuji delta-18O Records Based on the Devils Hole Paleotemperature Chronology
Jurate Maciunas Landwehr
2002, Open-File Report 2002-266
This report presents the data for the Vostok - Devils Hole chronology, termed V-DH chronology, for the Antarctic Vostok ice core record. This depth - age relation is based on a join between the Vostok deuterium profile (D) and the stable oxygen isotope ratio (18O) record of paleotemperature from a...
Digital version of "Open-File Report 92-179: Geologic map of the Cow Cove Quadrangle, San Bernardino County, California"
Howard G. Wilshire, David R. Bedford, Teresa Coleman
2002, Open-File Report 2002-274
This is a digital map database version of a previous printed geologic map, U.S. Geological Survey Open-File Report 92–179. The original paper map has been faithfully reproduced as a geologic map database for use in a GIS, and thus does not contain updated geologic information for the map area. This...
Field guide to geologic excursions in southwestern Utah and adjacent areas of Arizona and Nevada
William R. Lund, editor(s)
2002, Open-File Report 2002-172
This field guide contains road logs for field trips planned in conjunction with the 2002 Rocky Mountain Section meeting of the Geological Society of America held at Southern Utah University in Cedar City, Utah. There are a total of eight field trips, covering various locations and topics in southwestern Utah...
Color-coded contour map of Mars M 25M RKN
Water Resources Division, U.S. Geological Survey
2002, Open-File Report 2002-283
NOTES ON BASE This map is based on data from the Mars Orbiter Laser Altimeter (MOLA) (Smith and others, 2001), an instrument on NASA's Mars Global Surveyor (MGS) spacecraft (Albee and others, 2001). The image used for the base of this map represents more than 600 million measurements gathered between 1999...
Abstracts for the symposium on the application of neural networks to the earth sciences
Donald A. Singer
2002, Open-File Report 2002-315
Artificial neural networks are a group of mathematical methods that attempt to mimic some of the processes in the human mind. Although the foundations for these ideas were laid as early as 1943 (McCulloch and Pitts, 1943), it wasn't until 1986 (Rumelhart and McClelland, 1986; Masters, 1995) that applications to...
Basement geology of the National Petroleum Reserve Alaska (NPRA), Northern Alaska
R. W. Saltus, T. L. Hudson, J. D. Phillips, C. Kulander, Julie A. Dumoulin, C. Potter
2002, Open-File Report 2002-127
Gravity, aeromagnetic, seismic, and borehole information enable mapping of crustal basement characteristics within the National Petroleum Reserve Alaska (NPRA). In general, the pre-Mississippian basement of the southern portion of the NPRA is different from that in the north in that it is deeper and thinner, is made up of dense...
Preliminary volcano-hazard assessment for Hayes Volcano, Alaska
C. F. Waythomas, T. P. Miller
2002, Open-File Report 2002-72
Data set of world phosphate mines, deposits, and occurrences: Part A. Geologic data. Part B. Location and mineral economic data
Carlotta B. Chernoff, G. J. Orris
2002, Open-File Report 2002-156
An inventory of more than 1,600 world phosphate mines, deposits, and occurrences was compiled from smaller data sets collected as part of multiple research efforts by Carlotta Chernoff, University of Arizona, and Greta Orris, U.S. Geological Survey. These data have been utilized during studies of black shale depositional environments and...
Digital version of "Open-File Report 92-183: Geologic map of the Granite Spring Quadrangle, San Bernardino County, California"
Howard G. Wilshire, David R. Bedford, Teresa Coleman
2002, Open-File Report 2002-273
This is a digital map database version of a previous printed geologic map, U.S. Geological Survey Open-File Report 92–183. The original paper map has been faithfully reproduced as a geologic map database for use in a GIS, and thus does not contain updated geologic information for the map area. This...
Emergency assessment of potential debris-flow peak discharges, Missionary Ridge fire, Colorado
Susan H. Cannon, Alan H. Rea, J. Andrew Gleason, Stephen P. Garcia
2002, Open-File Report 2002-323
These maps present the results of assessments of peak discharges that can potentially be generated by debris flows issuing from the basins burned by the Missionary Ridge fire of June 9 through July 14, 2002, near Durango, Colorado. The maps are based on a regression model for debris-flow peak discharge...
Ground-water levels and water-quality data from monitoring wells in Windham, Maine, water years 1997-2001
J. M. Caldwell
2002, Open-File Report 2002-145
Ongoing data collection in an established well network in Windham, Maine, serves as an indicator of the hydrologic and water-quality conditions in the aquifer. This report presents data collected from 1997 through 2001, including ground-water levels, measurements of water-quality field parameters, and concentrations of nutrients and arsenic....
Porphyry copper deposits of the world: Database, maps, and preliminary analysis
Donald A. Singer, Vladimir I. Berger, Barry C. Moring
2002, Open-File Report 2002-268
Mineral deposit models are important in exploration planning and quantitative resource assessments for two reasons: (1) grades and tonnages among deposit types are significantly different, and (2) many types occur in different geologic settings that can be identified from geologic maps. Mineral deposit models are the keystone in combining the...
Rainfall, Streamflow, and Water-Quality Data During Stormwater Monitoring, Halawa Stream Drainage Basin, Oahu, Hawaii, July 1, 2001 to June 30, 2002
Todd K. Presley
2002, Open-File Report 2002-319
The State of Hawaii Department of Transportation Stormwater Monitoring Program was implemented on January 1, 2001. The program includes the collection of rainfall, streamflow, and water-quality data at selected sites in the Halawa Stream drainage basin. Rainfall data were collected at two sites, and streamflow data were collected at 3...
Hydrologic, water-quality, and sediment-quality data for the Christmas Bay system, Brazoria County, Texas, February 1999-March 2000
Jeffery W. East
2002, Open-File Report 2002-82
The Christmas Bay system is a group of three small secondary bays (Christmas, Bastrop, and Drum Bays) at the southwestern end of the Galveston Bay estuarine system in Brazoria County, Texas. During February 1999-March 2000, hydrologic, water-quality, and sediment-quality data were collected from each of the three bays to establish...
Reconnaissance of alluvial fans as potential sources of gravel aggregate, Santa Cruz River valley, Southeast Arizona
David A. Lindsey, Roger Melick
2002, Open-File Report 2002-314
This investigation was conducted to provide information on the aggregate potential of alluvial fan sediments in the Santa Cruz River valley. Pebble lithology, roundness, and particle size were determined in the field, and structures and textures of alluvial fan sediments were photographed and described. Additional measurements of particle size on...
Geology, mineralization, and hydrothermal alteration and relationships to acidic and metal-bearing surface waters in the Palmetto Gulch area, southwestern Colorado
Dana J. Bove, Jeffrey P. Kurtz, Winfield G. Wright
2002, Open-File Report 2002-275
The Palmetto Gulch area is affected by low pH and metal-bearing drainage from abandoned mines, and perhaps, from natural weathering around vein zones. To investigate these anthropogenic and potential natural sources of acidity and metals, we mapped the geology, veins, and hydrothermally altered areas; conducted mine dump leachate studies; and...
Bibliography on the occurrence and intrusion of saltwater in aquifers along the Atlantic Coast of the United States
Paul M. Barlow, Emily C. Wild
2002, Open-File Report 2002-235
Freshwater aquifers along the Atlantic coast of the United States are vulnerable to the intrusion of saltwater from saline waters that bound the aquifers along their seaward margins. Incidences of saltwater intrusion have been documented along the Atlantic coast for more than 100 years. This report provides a bibliography of...
Strategic vision for the U. S. Geological Survey in the Great Lakes-St. Lawrence Region, 2001-2010
Donna N. Myers, M.J. Chambers, Verdel K. Dawson, Sandra M. Eberts, Marion Fisher, Michael P. Foose, Herbert J. Freiberger, John E. Gannon, David A. Greene, Deborah Hutchinson, James M. McNeal, Nancy Milton, James R. Nicholas, Charles A. Peters, Byron D. Stone, Dalia E. Varanka, Charles E. Hickman, Denise A. Wiltshire
2002, Open-File Report 2002-193
The U.S. Geological Survey's (USGS) strategic vision for the Great Lakes-St. Lawrence Region is that of a healthy ecosystem, whose ecological integrity and economic health are nurtured and sustained through sound resource-management decisions based on reliable, timely, and objective scientific information and data. The USGS is a leader in providing...
Ecological evaluation of the abundance and effects of elk herbivory in Rocky Mountain National Park, Colorado, 1994-1999
Francis J. Singer, Linda Zeigenfuss, editor(s)
2002, Open-File Report 2002-208
Several National Park Service units in the Intermountain region possess a number of closely related management needs relative to the abundance of wild ungulates and their herbivory effects on plants and ecosystem processes. In 1993, the then National Biological Service (NBS) - now U.S. Geological Survey, Biological Resources Discipline (USGS,...
Stratigraphy of the Proterozoic Revett Formation, Coeur d'Alene District, Idaho
Jeffrey L. Mauk
2002, Open-File Report 2001-319
The Proterozoic Revett Formation of the Belt Supergroup contains three informal members that can be identified throughout the Coeur d'Alene mining district of northern Idaho. The lower Revett Formation is dominated by quartzite, but also contains intervals of siltite. The middle Revett consists predominantly of siltite, though quartzite and argillite...
Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September 2001
Leel Knowles Jr., Sandra L. Kinnaman
2002, Open-File Report 2002-182
Potentiometric surfaces of the intermediate aquifer system, west-central Florida, September 2001
A. D. Duerr
2002, Open-File Report 2002-187
No abstract available....
