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...
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...
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...
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...
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...
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....
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...
Conodont and Radiolarian Data from the De Long Mountains Quadrangle and Adjacent Areas, Northern Alaska
Julie A. Dumoulin, Anita G. Harris, Charles D. Blome, Lorne E. Young
2006, Open-File Report 2006-1068
INTRODUCTION This report presents biostratigraphic data from 289 collections at 189 localities in the De Long Mountains, Misheguk Mountain, and Noatak quadrangles (fig. 1); most of these data have never been previously published. The collections were made during studies of the Red Dog massive sulfide deposit in 1998?2004 and in...
Magnetotelluric data collected near geophysically logged boreholes in the Española and Middle Rio Grande Basins, New Mexico
Jackie M. Williams, Brian D. Rodriguez
2006, Open-File Report 2006-1120
The Santa Fe region is growing rapidly. The Santa Fe Group aquifer in the Española Basin is the main source of municipal water for the region, and water shortfalls could have serious consequences. Future growth and land management in the region depend on accurate assessment and protection of the region's...
Mapa Geologico de Venezuela a Escala 1:750,000
Paul C. Hackley, Franco Urbani, Alex W. Karlsen, Christopher P. Garrity
2006, Open-File Report 2006-1109
Se presenta un mapa geologico digital de Venezuela sobre un fondo de relieve sombreado. Los datos geologicos e hidrologicos del norte del rio Orinoco proceden de la digitalizacion de mapas geologicos en papel a escala 1:500.000. Estos datos fueron integrados con el mapa geologico digital del Escudo de Guayana Venezolano,...
Rainfall thresholds for forecasting landslides in the Seattle, Washington, area — Exceedance and probability
Alan F. Chleborad, Rex L. Baum, Jonathan W. Godt
2006, Open-File Report 2006-1064
Empirical rainfall thresholds and related information form a basis for forecasting landslides in the Seattle area. A formula for a cumulative rainfall threshold (CT), P3=3.5–0.67P15, defined by rainfall amounts (in inches) during the last 3 days (72 hours), P3, and the previous 15 days (360 hours), P15, was developed from analysis of historical...
Geologic and hydrogeologic framework of the Espa?ola basin -- Proceedings of the 5th annual Espa?ola basin workshop, Santa Fe, New Mexico, March 7-8, 2006
Kevin C. McKinney
2006, Open-File Report 2006-1134
This report presents abstracts of technical studies that are focused on the hydrogeologic framework of the Espa?ola basin, a major subbasin of the Cenozoic Rio Grande rift. The Rio Grande, Rio Chama, Santa Fe River, and their tributaries carry important surface water in the Espa?ola basin. Sediments and interbedded volcanic...
Coastal classification atlas: South Texas coastal classification maps: Mansfield Channel to the Rio Grande
Robert A. Morton, Russell L. Peterson
2006, Open-File Report 2006-1133
The Nation's rapidly growing coastal population requires reliable information regarding the vulnerability of coastal regions to storm impacts. This has created a need for classifying coastal lands and evaluating storm-hazard vulnerability. Government officials and resource managers responsible for dealing with natural hazards also need accurate assessments of potential storm impacts...
Stocks and flows of lead-based wheel weights in the United States
Donald I. Bleiwas
2006, Open-File Report 2006-1111
Lead is used in many widely known applications, such as automobile batteries and radiation shielding. Another lesser known, but long-term, use of lead is in automotive vehicle wheel weights. Lead weights have been used to balance wheels since the 1930s because of its high specific gravity, low relative cost, and its...
USGS analysis of the Australian UNCLOS submission
Deborah R. Hutchinson, Robert W. Rowland
2006, Open-File Report 2006-1073
In November 2004, the Government of Australia made a submission to the Commission on the Limits of the Continental Shelf (CLCS) for 10 extended continental shelf (ECS) regions, utilizing Article-76 of the United Nations Convention on the Law of the Sea (UNCLOS). With information provided in the Australian Executive Summary,...
Scoping of flood hazard mapping needs for Merrimack County, New Hampshire
Robert H. Flynn
2006, Open-File Report 2006-1127
This report was prepared by the U.S. Geological Survey (USGS) New Hampshire/Vermont Water Science Center for scoping of flood-hazard mapping needs for Merrimack County, New Hampshire, under Federal Emergency Management Agency (FEMA) Inter-Agency agreement Number HSFE01-05X-0018....
Summary of recovered historical ground-water-level data for Michigan, 1934-2005
Cassaundra L. Cornett, Suzanne L. Crowley, Rose M. McGowan, Stephen P. Blumer, Howard W. Reeves
2006, Open-File Report 2006-1057
This report documents ground-water-level data-recovery efforts performed by the USGS Michigan Water Science Center and provides nearly three-hundred hydrographs generated from these recovered data. Data recovery is the process of verifying and transcribing data from paper files into the USGS National Water Information System (NWIS) electronic databases appropriate for ground-water-level...
Preliminary geologic map of the Townsend 30' x 60' quadrangle, Montana
Mitchell W. Reynolds, Theodore R. Brandt
2006, Open-File Report 2006-1138
The geologic map of the Townsend quadrangle, scale 1:100,000, was made as part of the Montana Investigations Project to provide new information on the stratigraphy, structure, and geologic history of this geologically complex area in west-central Montana. The quadrangle encompasses about 4,200 square km (1,640 square mi)....
Water-quality and lake-stage data for Wisconsin lakes, water year 2005
W. J. Rose, H.S. Garn, G. L. Goddard, S.B. Marsh, D.L. Olson, Dale M. Robertson
2006, Open-File Report 2006-1080
The U.S. Geological Survey (USGS), in cooperation with local and other agencies, collects data at selected lakes throughout Wisconsin. These data, accumulated over many years, provide a data base for developing an improved understanding of the water quality of lakes. The purpose of this report is to provide information...
Characterization of organic matter in lake sediments from Minnesota and Yellowstone National Park
Walter E. Dean
2006, Open-File Report 2006-1053
Samples of sediment from lakes in Minnesota and Yellowstone National Park (YNP) were analyzed for organic carbon (OC), hydrogen richness by Rock-Eval pyrolysis, and stable carbon- and nitrogen-isotope composition of bulk organic matter. Values of delta 13C of lake plankton tend to be around -28 to -32 parts per thousand...
