Well construction information, lithologic logs, water level data, and overview of research in Handcart Gulch, Colorado: An alpine watershed affected by metalliferous hydrothermal alteration
Jonathan S. Caine, Andrew H. Manning, Philip L. Verplanck, Dana J. Bove, Katherine Gurley Kahn, Shemin Ge
2006, Open-File Report 2006-1189
Integrated, multidisciplinary studies of the Handcart Gulch alpine watershed provide a unique opportunity to study and characterize the geology and hydrology of an alpine watershed along the Continental Divide. The study area arose out of the donation of four abandoned, deep mineral exploration boreholes to the U.S. Geological Survey for...
Environmental aspects of produced-water salt releases in onshore and coastal petroleum-producing areas of the conterminous U.S. - a bibliography
James K. Otton
2006, Open-File Report 2006-1154
Environmental effects associated with the production of oil and gas have been reported since the first oil wells were drilled in the Appalachian Basin in Pennsylvania and Kentucky in the early to mid-1800s. The most significant of these effects are the degradation of soils, ground water, surface water, and ecosystems...
Potentiometric surface of the Upper Floridan aquifer, west-central Florida, May 2005
A.G. Ortiz, R.A. Blanchard
2006, Open-File Report 2006-1009
The Floridan aquifer system consists of the Upper and Lower Floridan aquifers separated by the middle confining unit. The middle confining unit and the Lower Floridan aquifer in west-central Florida generally contain highly mineralized water. The water-bearing units containing freshwater are herein referred to as the Upper Floridan aquifer. The...
Regional evaluation of the hydrogeologic framework, hydraulic properties, and chemical characteristics of the intermediate aquifer system underlying southern west-central Florida
Lari A. Knochenmus
2006, Scientific Investigations Report 2006-5013
Three major aquifer systems-the surficial aquifer system, the intermediate aquifer system, and the Floridan aquifer system-are recognized in the approximately 5,100-square-mile southern west-central Florida study area. The principal source of freshwater for all uses is ground water supplied from the three aquifer systems. Ground water from the intermediate aquifer system...
Potentiometric surface of the Upper Floridan aquifer, west-central Florida, September 2005
A.G. Ortiz
2006, Open-File Report 2006-1128
The Floridan aquifer system consists of the Upper and Lower Floridan aquifers separated by the middle confining unit. The middle confining unit and the Lower Floridan aquifer in west-central Florida generally contain highly mineralized water. The water-bearing units containing freshwater are herein referred to as the Upper Floridan aquifer. The...
Under the Golden Gate Bridge — Views of the sea floor near the entrance to San Francisco Bay, California
Peter Dartnell, Patrick L. Barnard, John L. Chin, Daniel Hanes, Rikk G. Kvitek, Pat J. Iampietro, James V. Gardner
2006, Scientific Investigations Map 2917
San Francisco Bay in Northern California is one of the largest and most altered estuaries within the United States. The sea floor within the bay as well as at its entrance is constantly changing due to strong tidal currents, aggregate mining, dredge disposal, and the creation of new land using...
Questa baseline and pre-mining ground-water quality investigation. 21. Hydrology and water balance of the Red River Basin, New Mexico, 1930-2004
Cheryl A. Naus, Douglas P. McAda, Nathan C. Myers
2006, Scientific Investigations Report 2006-5040
A study of the hydrology of the Red River Basin of northern New Mexico, including development of a pre- mining water balance, contributes to a greater understanding of processes affecting the flow and chemistry of water in the Red River and its alluvial aquifer. Estimates of mean annual precipitation for...
Geohydrological characterization, water-chemistry, and ground-water flow simulation model of the Sonoma Valley area, Sonoma County, California
Christopher D. Farrar, Loren F. Metzger, Tracy Nishikawa, Kathryn M. Koczot, Eric G. Reichard, Victoria E. Langenheim
2006, Scientific Investigations Report 2006-5092
The Sonoma Valley, located about 30 miles north of San Francisco, is one of several basins in Sonoma County that use a combination of ground water and water delivered from the Russian River for supply. Over the past 30 years, Sonoma Valley has experienced rapid population growth and land-use changes....
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...
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...
Gravity investigations of the Chickasaw National Recreation Area, south-central Oklahoma
Daniel S. Scheirer, Allegra Hosford Scheirer
2006, Open-File Report 2006-1083
The geological configuration of the Arbuckle Uplift in the vicinity of Chickasaw National Recreation Area in south-central Oklahoma plays a governing role in the distribution of fresh and mineral springs within the park and in the existence of artesian wells in and around the park. A confining layer of well-cemented...
Revised geologic cross sections of parts of the Colorado, White River, and Death Valley regional groundwater flow systems, Nevada, Utah, and Arizona
William R. Page, Daniel S. Scheirer, Victoria E. Langenheim, Mary A. Berger
2006, Open-File Report 2006-1040
This report presents revisions to parts of seven of the ten cross sections originally published in U.S. Geological Survey Open-File Report 2006-1040. The revisions were necessary to correct errors in some of the original cross sections, and to show new parts of several sections that were extended and (or) appended...
Major- and trace-element concentrations in rock samples collected in 2004 from the Taylor Mountains 1:250,000-scale quadrangle, Alaska
Edward P. Klimasauskas, Marti L. Miller, Dwight Bradley, Susan M. Karl, James F. Baichtal, Robert B. Blodgett
2006, Open-File Report 2006-1070
The Kuskokwim mineral belt of Bundtzen and Miller (1997) forms an important metallogenic region in southwestern Alaska that has yielded more than 3.22 million ounces of gold and 400,000 ounces of silver. Precious-metal and related deposits in this region associated with Late Cretaceous to early Tertiary igneous complexes extend into...
Completion reports, core logs, and hydrogeologic data from wells and piezometers in Prospect Gulch, San Juan County, Colorado
Raymond H. Johnson, Douglas B. Yager
2006, Open-File Report 2006-1030
In the late nineteenth century, San Juan County, Colorado, was the center of a metal mining boom in the San Juan Mountains. Although most mining activity ceased by the 1990s, the effects of historical mining continue to contribute metals to ground water and surface water. Previous research by the U.S....
Geology, hydrology, and water quality of the glacial drift aquifer in the vicinity of the Nelson landfill near Yorkville, Illinois
Robert T. Kay
2006, Open-File Report 2006-1045
The geologic and hydrologic characteristics of the sand-and-gravel deposits that compose the glacial drift aquifer in the vicinity of the Nelson Landfill site in Yorkville, Illinois indicate that the aquifer could be developed as a source of public water supply. The geology of these deposits within the Newark Bedrock Valley...
The influence of hydrous Mn–Zn oxides on diel cycling of Zn in an alkaline stream draining abandoned mine lands
Christopher L. Shope, Ying Xie, Christopher H. Gammons
2006, Applied Geochemistry (21) 476-491
Many mining-impacted streams in western Montana with pH near or above neutrality display large (up to 500%) diel cycles in dissolved Zn concentrations. The streams in question typically contain boulders coated with a thin biofilm, as well as black mineral crusts composed of hydrous Mn–Zn oxides. Laboratory mesocosm experiments simulating...
Chemical and isotopic database of water and gas from hydrothermal systems with an emphasis for the western United States
Robert H. Mariner, D.Y. Venezky, S. Hurwitz
2006, Data Series 169
Chemical and isotope data accumulated by two USGS Projects (led by I. Barnes and R. Mariner) over a time period of about 40 years can now be found using a basic web search or through an image search (left). The data are primarily chemical and isotopic...
Overview of the Microscopic Imager Investigation during Spirit's first 450 sols in Gusev crater
Kenneth E. Herkenhoff, Steve W. Squyres, Robert Anderson, Brent A. Archinal, Raymond E. Arvidson, Janet M. Barrett, Kris J. Becker, James F. Bell, Charles Budney, Nathalie A. Cabrol, Mary G. Chapman, Debbie Cook, Bethany L. Ehlmann, Jack Farmer, Brenda Franklin, Lisa R. Gaddis, Donna M. Galuszka, Patricia A. Garcia, Trent M. Hare, Elpitha Howington-Kraus, Jeffrey R. Johnson, Sarah Johnson, Kjartan M Kinch, Randolph L. Kirk, Ella M. Lee, Craig Leff, Mark T. Lemmon, Madsen Morten B., Justin N. Maki, Kevin F. Mullins, Bonnie L. Redding, Lutz Richter, Mark R. Rosiek, Michael H. Sims, Laurence A. Soderblom, Nicole Spanovich, Richard Springer, Robert M. Sucharski, Tracie L. Sucharski, Robert Sullivan, James M. Torson, Albert S. Yen
2006, Journal of Geophysical Research E: Planets (111)
The Microscopic Imager (MI) on the Mars Exploration Rover Spirit has returned images of Mars with higher resolution than any previous camera system, allowing detailed petrographic and sedimentological studies of the rocks and soils at the Gusev landing site. Designed to simulate a geologist's hand lens, the MI is mounted...
Changes in the C storage in Las Tablas de Daimiel National Park (PNTD) in the last 1000 years [Cambios en el almacenamiento de C en el Parque Nacional de Las Tablas de Daimiel (PNTD) en los últimos 1000 años]
F. Dominguez-Castro, J.I. Santisteban, R. Mediavilla, Walter E. Dean, Enrique Lopez-Pamo, Maria Blanca Ruiz-Zapata, Maria Jose Gil-Garcia
2006, Boletin Geologico y Minero (117) 537-544
Las Tablas de Daimiel National Park has suffered too many modifications throughout its history, natural as well as anthropic, which have affected the carbon storage in different ways. The study of those variations has been carried out by the analysis of sedimentary record and historical data. The sedimentary record has...
Sediment mineralogy based on visible and near-infrared reflectance spectroscopy
R. D. Jarrard, Vanden Berg
Rothwell R.G., editor(s)
2006, Geological Society Special Publication 129-140
Visible and near-infrared spectroscopy (VNIS) can be used to measure reflectance spectra (wavelength 350-2500 nm) for sediment cores and samples. A local ground-truth calibration of spectral features to mineral percentages is calculated by measuring reflectance spectra for a suite of samples of known mineralogy. This approach has been tested on...
Geologic, hydrologic, and geochemical interpretations of mineral deposits as analogs for understanding transport of environmental contaminants
R. B. Wanty, B. R. Berger
2006, Journal of Geochemical Exploration (88) 162-165
Base- and precious-metal mineral deposits comprise anomalous concentrations of metals and associated elements, which may be useful subjects for study as analogs for migration of environmental contaminants. In the geologic past, hydrothermal mineral deposits formed at the intersection of favorable geologic, hydrologic and geochemical gradients. In the present, weathering of...
Geochemical patterns of arsenic-enriched ground water in fractured, crystalline bedrock, Northport, Maine, USA
G. Lipfert, A.S. Reeve, W.C. Sidle, R. Marvinney
2006, Applied Geochemistry (21) 528-545
High mean As concentrations of up to 26.6 ??mol/L (1990 ??g/L) occur in ground water collected from a fractured-bedrock system composed of sulfidic schist with granitic to dioritic intrusions. Sulfides in the bedrock are the primary source of the As in the ground water, but the presence of arsenopyrite in...
Containing arsenic-enriched groundwater tracing lead isotopic compositions of common arsenical pesticides in a coastal Maine watershed
Robert A. Ayuso, Nora K. Foley, Glipin R. Robinson Jr., A.S. Colvin, G. Lipfert, A.S. Reeve
2006, Conference Paper, Association for Environmental Health and Sciences - 21st Annual International Conference on Contaminated Soils, Sediments and Water
Arsenical pesticides and herbicides were extensively used on apple, blueberry, and potato crops in New England during the first half of the twentieth century. Lead arsenate was the most heavily used arsenical pesticide until it was officially banned. Lead arsenate, calcium arsenate, and sodium arsenate have similar Pb isotope compositions:...
Geology and reconnaissance stable isotope study of the Oyu Tolgoi porphyry Cu-Au system, South Gobi, Mongolia
B.-E. Khashgerel, R. O. Rye, J.W. Hedenquist, I. Kavalieris
2006, Economic Geology (101) 503-522
The Oyu Tolgoi porphyry Cu-Au system in the South Gobi desert, Mongolia, comprises five deposits that extend over 6 km in a north-northeast-oriented zone. They occur in a middle to late Paleozoic are terrane and are related to Late Devonian quartz monzodiorite intrusions. The Hugo Dummett deposits are the northernmost...
State summaries: Ohio
M.E. Wolfe
2006, Mining Engineering (58) 109-112
In 2005, the value of coal and industrial minerals sold in Ohio amounted to $1.5 billion, an increase of 7% from 2004. Coal production for the year increased 4.7% from 2004, totalling 22.3 Mt. Aggregate production totalled 114 Mt, a 4% decrease from 2004. In 2005, the state's salt sales...
