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...
Carbon isotope composition of ambient CO2 and recycling: a matrix simulation model
Leonel da Silveira Lobo Sternberg, Donald L. DeAngelis
2002, Ecological Modelling (154) 179-192
The relationship between isotopic composition and concentration of ambient CO2 in a canopy and its associated convective boundary layer was modeled. The model divides the canopy and convective boundary layer into several layers. Photosynthesis, respiration, and exchange between each layer can be simulated by matrix equations. This simulation can be used...
North American box turtles: A natural history
C. Kenneth Dodd Jr.
2002, Book
Once a familiar backyard visitor in many parts of the United States and Mexico, the box turtle is losing the battle against extinction. In North American Box Turtles, C. Kenneth Dodd, Jr., has written the first book-length natural history of the twelve species and subspecies of this endangered animal. This...
Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Arsenic speciation in natural-water samples using laboratory and field methods
John R. Garbarino, Anthony J. Bednar, Mark R. Burkhardt
2002, Water-Resources Investigations Report 2002-4144
Analytical methods for the determination of arsenite [As(III)], arsenate [As(V)], dimethylarsinate (DMA), monomethylarsonate (MMA), and roxarsone in filtered natural-water samples are described. Various analytical methods can be used for the determination, depending on the arsenic species being determined. Arsenic concentration is determined by using inductively coupled plasma-mass spectrometry...
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
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...
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...
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....
Estimated water withdrawals, water use, and water consumption in Illinois, Indiana, Iowa, Kentucky, Michigan, Missouri, and Wisconsin, 1950-95
Robert T. Kay
2002, Water-Resources Investigations Report 2001-4116
From 1950 through 1995, the U.S. Geological Survey tabulated water withdrawals throughout the United States, including the northcentral States of Illinois, Indiana, Iowa, Kentucky, Michigan, Missouri, and Wisconsin. During this period, total water withdrawals increased in each of the north-central States by at least a factor of two. Illinois led...
Amphibians at a crossroads: an overview
C. Kenneth Dodd Jr., R.B. Bury
2002, People, Land, and Water (28)
No abstract available....
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...
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...
Evaluation of factors affecting ice forces at selected bridges in South Dakota
Colin A. Niehus
2002, Water-Resources Investigations Report 2002-4158
During 1998-2002, the U.S. Geological Survey, in cooperation with the South Dakota Department of Transportation (SDDOT), conducted a study to evaluate factors affecting ice forces at selected bridges in South Dakota. The focus of this ice-force evaluation was on maximum ice thickness and ice-crushing strength, which are the most important...
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...
Subsurface and petroleum geology of the southwestern Santa Clara Valley ("Silicon Valley"), California
Richard G. Stanley, Robert C. Jachens, Paul G. Lillis, Robert J. McLaughlin, Keith A. Kvenvolden, Frances D. Hostettler, Kristin A. McDougall, Leslie B. Magoon
2002, Professional Paper 1663
Gravity anomalies, historical records of exploratory oil wells and oil seeps, new organic-geochemical results, and new stratigraphic and structural data indicate the presence of a concealed, oil-bearing sedimentary basin beneath a highly urbanized part of the Santa Clara Valley, Calif. A conspicuous isostatic-gravity low that extends about 35 km from...
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,...
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...
Schlumberger soundings at the Amargosa Desert Research Site, Nevada
Robert J. Bisdorf
2002, Open-File Report 2002-140
In 1999 the U.S. Geological Survey made 38 direct current (dc) electrical soundings at the Amargosa Desert Research Site (ADRS) near Beatty, Nevada (fig. 1.) using the Schlumberger array. An additional 16 Schlumberger soundings were made in 2000. The soundings were made to determine the subsurface resistivity distribution, and the...
Topographic map of Mars M 25M RKN
Water Resources Division, U.S. Geological Survey
2002, Open-File Report 2002-282
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...
Statistical tables and charts showing geochemical variation in the Mesoproterozoic Big Creek, Apple Creek, and Gunsight formations, Lemhi group, Salmon River Mountains and Lemhi Range, central Idaho
David A. Lindsey, Russell G. Tysdal, Joseph E. Taggart Jr.
2002, Open-File Report 2002-310
The principal purpose of this report is to provide a reference archive for results of a statistical analysis of geochemical data for metasedimentary rocks of Mesoproterozoic age of the Salmon River Mountains and Lemhi Range, central Idaho. Descriptions of geochemical data sets, statistical methods, rationale for interpretations, and references 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
Ground-water levels and potentiometric surfaces, Naval Air Warfare Center, West Trenton, New Jersey, 2000
Pierre J. Lacombe
2002, Water-Resources Investigations Report 2001-4197
Water levels were measured in wells at the decommissioned Naval Air Warfare Center in West Trenton, N.J., during 2000. Water-level hydrographs prepared from data collected at seven observation wells on the base show changes caused by seasonal and daily climate conditions and by the pumping of contaminated water from recovery...
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...
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...
