Electrical resistivity surveys in Prospect Gulch, San Juan County, Colorado
Robert R. McDougal
2006, Open-File Report 2006-1171
Prospect Gulch is a major source of naturally occurring and mining related metals to Cement Creek, a tributary of the upper Animas River in southwestern Colorado. Efforts to improve water quality in the watershed have focused on Prospect Gulch because many of its abandoned mines and are located on federal...
Seismic constraints and coulomb stress changes of a blind thrust fault system, 2: Northridge, California
Ross S. Stein, Jian Lin
2006, Open-File Report 2006-1158
We review seismicity, surface faulting, and Coulomb stress changes associated with the 1994 Northridge, California, earthquake. All of the observed surface faulting is shallow, extending meters to tens of meters below the surface. Relocated aftershocks reveal no seismicity shallower than 2 km depth. Although many of the aftershocks lie along...
Publications of the Volcano Hazards Program 2004
Manuel Nathenson
2006, Open-File Report 2006-1102
The Volcano Hazards Program of the U.S. Geological Survey (USGS) is part of the Geologic Hazards Assessments subactivity as funded by Congressional appropriation. Investigations are carried out in the Geology and Hydrology Disciplines of the USGS and with cooperators at the Alaska Division of Geological and Geophysical Surveys, University of...
Reflectance measurements of well cuttings from Ashley and Bradley Counties, Arkansas
Paul C. Hackley, Michael E. Ratchford, Peter D. Warwick
2006, Open-File Report 2006-1155
Vitrinite reflectance measurements were determined for twenty-three well cuttings samples from Ashley and Bradley Counties, Arkansas, to evaluate coal rank and coalbed gas potential in the Desha Basin of the southern Missisissippi Embayment. Samples were selected from the Norman F. Williams Well Sample Library using geophysical logs to identify coaly...
An allocation of undiscovered oil and gas resources to Big South Fork National Recreation Area and Obed Wild and Scenic River, Kentucky and Tennessee
Christopher J. Schenk, Timothy R. Klett, Ronald R. Charpentier, Troy A. Cook, Richard M. Pollastro
2006, Open-File Report 2006-1048
The U.S. Geological Survey (USGS) estimated volumes of undiscovered oil and gas resources that may underlie Big South Fork National Recreation Area and Obed Wild and Scenic River in Kentucky and Tennessee. Applying the results of existing assessments of undiscovered resources from three assessment units in the Appalachian Basin Province...
Simulated water budgets and ground-water/surface-water interactions in Bushkill and parts of Monocacy Creek watersheds, Northampton County, Pennsylvania: A preliminary study with identification of data needs
Dennis W. Risser
2006, Open-File Report 2006-1143
This report, prepared in cooperation with the Department of Environmental Protection, Office of Mineral Resources Management, provides a preliminary analysis of water budgets and generalized ground-water/surface-water interactions for Bushkill and parts of Monocacy Creek watersheds in Northampton County, Pa., by use of a ground-water flow model. Bushkill Creek watershed was...
Alaska resource data file: Mount Katmai quadrangle
Frederic H. Wilson, Stan E. Church, Damon P. Bickerstaff
2006, Open-File Report 2006-1022
This report gives descriptions of the mineral occurrences in the Mount Katmai 1:250,000-scale quadrangle, Alaska. The data presented here are maintained as part of a statewide database on mines, prospects and mineral occurrences throughout Alaska....
GDA (Geologic Data Assistant), an ArcPad extension for geologic mapping: code, prerequisites, and instructions
Evan E. Thoms and Ralph A. Haugerud
2006, Open-File Report 2006-1097
GDA (Geologic Data Assistant) is an extension to ArcPad, a mobile mapping software program by Environmental Systems Research Institute (ESRI) designed to run on personal digital assistant (PDA) computers. GDA and ArcPad allow a PDA to replace the paper notebook and field map traditionally used for geologic mapping. GDA allows...
Ground-water quality in the Lake Champlain basin, New York, 2004
Elizabeth A. Nystrom
2006, Open-File Report 2006-1088
Water samples were collected from 11 public-supply wells and 11 private domestic wells in the Lake Champlain basin in New York during the fall of 2004 to characterize the chemical quality of ground water. Wells were selected for sampling based on location and focused on areas of greatest ground-water use....
Seismic constraints and Coulomb stress changes of a blind thrust fault system, 1: Coalinga and Kettleman Hills, California
Jian Lin, Ross S. Stein
2006, Open-File Report 2006-1149
This report reviews the seismicity and surface ruptures associated with the 1982-1985 earthquake sequence in the Coalinga region in California, and the role of Coulomb stress in triggering the mainshock sequence and aftershocks. The 1982-1985 New Idria, Coalinga, and Kettleman Hills earthquakes struck on a series of west-dipping, en echelon...
Identification and extraction of the seaward edge of terrestrial vegetation using digital aerial photography
Melanie Harris, John Brock, A. Nayegandhi, M. Duffy, C. W. Wright
2006, Open-File Report 2006-1092
This report is created as part of the Aerial Data Collection and Creation of Products for Park Vital Signs Monitoring within the Northeast Region Coastal and Barrier Network project, which is a joint project between the National Park Service Inventory and Monitoring Program (NPS-IM), the National Aeronautics and Space Administration...
Water-level altitudes 2006 and water-level changes in the Chicot, Evangeline, and Jasper aquifers and compaction 1973-2005 in the Chicot and Evangeline aquifers, Houston-Galveston region, Texas
Mark C. Kasmarek, Natalie A. Houston, Dexter W. Brown
2006, Open-File Report 2006-1079
This report is one in an annual series of reports that depicts water-level altitudes and water-level changes in the Chicot, Evangeline, and Jasper aquifers, and compaction in the Chicot and Evangeline aquifers in the Houston-Galveston region. The Houston-Galveston region comprises Harris, Galveston, Fort Bend, Waller, and Montgomery Counties and adjacent...
Overview: DVD-video disc set of seafloor transects during USGS research cruises in the Pacific Ocean
Henry Chezar, Ivy Newman
2006, Open-File Report 2004-1101
Many USGS research programs involve the gathering of underwater seafloor video footage. This footage was captured on a variety of media, including Beta III and VHS tapes. Much of this media is now deteriorating, prompting the migration of this video footage onto DVD-Video discs. Advantages of using DVD-Video discs are:...
Magnetotelluric survey to locate the Archean/Proterozoic suture zone north of Wells, Nevada
Jackie M. Williams, Brian D. Rodriguez
2006, Open-File Report 2006-1119
It is important to know whether major mining districts in the Northern Nevada Gold Province are underlain by rocks of the Archean Wyoming craton, which are known to contain orogenic gold deposits, or by accreted rocks of the Paleoproterozoic Mojave province. It is also important to know the location and...
Geophysical studies of the Crump Geyser known geothermal resource area, Oregon, in 1975
Donald Plouff
2006, Open-File Report 2006-1110
The U.S. Geological Survey (USGS) conducted geophysical studies in support of the resource appraisal of the Crump Geyser Known Geothermal Resource Area (KGRA). This area was designated as a KGRA by the USGS, and this designation became effective on December 24, 1970. The land classification standards for a KGRA were...
Aeromagnetic survey of Dillingham area in southwest Alaska, a website for the preliminary distribution of data
Water Resources Division, U.S. Geological Survey
2006, Open-File Report 2006-1136
An airborne high-resolution magnetic survey was completed over the Dillingham and Nushagak Bay and Naknek area in southwestern Alaska. The flying was undertaken by McPhar Geosurveys Ltd. on behalf of the United States Geological Survey (USGS). First tests and calibration flights were completed by August 26th, 2005 and data acquisition...
Summary of available hydrogeologic data for the northeast portion of the alluvial aquifer at Louisville, Kentucky
Michael D. Unthank, Hugh L. Nelson
2006, Open-File Report 2006-1146
The hydrogeologic characteristics of the unconsolidated glacial outwash sand and gravel deposits that compose the northeast portion of the alluvial aquifer at Louisville, Kentucky, indicate a prolific water-bearing formation with approximately 7 billion gallons of ground-water storage and an estimated sustainable yield of over 280 million gallons per day. This...
Mineral facilities of Africa and the Middle East
J.M. Eros, Luissette Candelario-Quintana
2006, Open-File Report 2006-1135
This map displays over 1,500 mineral facilities in Africa and the Middle East. The mineral facilities include mines, plants, mills, or refineries of aluminum, cement, coal, copper, diamond, gold, iron and steel, nickel, platinum-group metals, salt, and silver, among others. The data used in this poster were compiled from multiple...
Geologic map of the Colonial Beach South 7.5-minute quadrangle, Virginia
Wayne L. Newell, Owen P. Bricker, Meredith S. Robertson
2006, Open-File Report 2005-1025
The Open-File Report includes a geologic map with cross section, and composite stratigraphic section of the Tertiary stratigraphy and of the Quaternary stratigraphy. The Tertiary map units are presented and interpreted for erodability and derived surficial deposits. The map area contains the George Washington Birthplace National Monument. The map facilitates the...
Approach to an assessment of volatile organic compounds in the nation's ground water and drinking-water supply wells
Michael J. Moran, John S. Zogorski, Barbara L. Rowe
2006, Open-File Report 2005-1452
The National Water-Quality Assessment (NAWQA) Program of the U.S. Geological Survey (USGS) developed an approach for a national assessment of the occurrence, status, and distribution of volatile organic compounds (VOCs) in samples of ground water from aquifer studies and in samples from drinking-water supply wells, specifically domestic and public wells....
Rainfall, runoff, and water-quality data for the urban storm-water program in the Albuquerque, New Mexico, metropolitan area, water year 2004
Todd Kelly, Orlando Romero, Mike Jimenez
2006, Open-File Report 2006-1105
Urbanization has dramatically increased precipitation runoff to the system of drainage channels and natural stream channels in the Albuquerque, New Mexico, metropolitan area. Rainfall and runoff data are important for planning and designing future storm-water conveyance channels in newly developing areas. Storm-water quality also is monitored in accordance with the...
A guide for using the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California
Joan B. Blainey, Claudia C. Faunt, Mary C. Hill
2006, Open-File Report 2006-1104
This report is a guide for executing numerical simulations with the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California using the U.S. Geological Survey modular finite-difference ground-water flow model, MODFLOW-2000. Model inputs, including observations of hydraulic head, discharge, and boundary flows, are summarized....
Annual dissolved nitrite plus nitrate and total phosphorous loads for the Susquehanna, St. Lawrence, Mississippi-Atchafalaya, and Columbia River basins, 1968-2004
Brent T. Aulenbach
2006, Open-File Report 2006-1087
Annual stream-water loads were calculated near the outlet of four of the larger river basins (Susquehanna, St. Lawrence, Mississippi-Atchafalaya, and Columbia) in the United States for dissolved nitrite plus nitrate (NO2 + NO3) and total phosphorus using LOADEST load estimation software. Loads were estimated for the period 1968-2004; although loads...
Transport pathways in the lower reaches of Hood Canal
Marlene A. Noble, Anne L. Gartner, Anthony J. Paulson, Jingping Xu, Edward G. Josberger, Christopher Curran
2006, Open-File Report 2006-1001
In 2003, studies revealed that the waters in the lower reaches of Hood Canal in Washington State had very low dissolved-oxygen concentrations, low enough to cause some fish kills between June and October of that year. In order to determine the transport patterns and the persistence of the low oxygen...
Processed 1938 aerial photography for selected areas of the lower Colorado River, southwestern United States
Laura M. Norman, Michael Gishey, Leila Gass, Brian Yanites, Edwin Pfeifer, Ron Simms, Ray Ahlbrandt
2006, Open-File Report 2006-1141
The U.S. Geological Survey (USGS) initiated a study of the Lower Colorado River to derive temporal-change characteristics from the predam period to the present. In this report, we present summary information on accomplishments under a USGS task for the Department of the Interior's Landscapes in the West project. We discuss...
