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Filter Total Items: 945
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Year Published: 2016

Environmental drivers of differences in microbial community structure in crude oil reservoirs across a methanogenic gradient

Stimulating in situ microbial communities in oil reservoirs to produce natural gas is a potentially viable strategy for recovering additional fossil fuel resources following traditional recovery operations. Little is known about what geochemical parameters drive microbial population dynamics in biodegraded, methanogenic oil reservoirs. We...

Shelton, Jenna L.; Akob, Denise M.; McIntosh, Jennifer C.; Fierer, Noah; Spear, John R.; Warwick, Peter D.; McCray, John E.
Shelton, J. L., Akob, D. M., McIntosh, J. C., Fierer, N., Spear, J. R., Warwick, P. D., & McCray, J. E. (2016). Environmental Drivers of Differences in Microbial Community Structure in Crude Oil Reservoirs across a Methanogenic Gradient. Frontiers in Microbiology, 7.

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Year Published: 2016

Pb-Sr isotopic and geochemical constraints on sources and processes of lead contamination in well waters and soil from former fruit orchards, Pennsylvania, USA: A legacy of anthropogenic activities

Isotopic discrimination can be an effective tool in establishing a direct link between sources of Pb contamination and the presence of anomalously high concentrations of Pb in waters, soils, and organisms. Residential wells supplying water containing up to 1600 ppb Pb to houses built on the former Mohr orchards commercial site, near Allentown...

Ayuso, Robert A.; Foley, Nora K.

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Year Published: 2016

Assessment of hydrogeologic terrains, well-construction characteristics, groundwater hydraulics, and water-quality and microbial data for determination of surface-water-influenced groundwater supplies in West Virginia

In January 2014, a storage tank leaked, spilling a large quantity of 4-methylcyclohexane methanol into the Elk River in West Virginia and contaminating the water supply for more than 300,000 people. In response, the West Virginia Legislature passed Senate Bill 373, which requires the West Virginia Department of Health and Human Resources (WVDHHR)...

Kozar, Mark D.; Paybins, Katherine S.
Kozar, M.D., and Paybins, K.S., 2016, Assessment of hydrogeologic terrains, well-construction characteristics, groundwater hydraulics, and water-quality and microbial data for determination of surface-water-influenced groundwater supplies in West Virginia (ver. 1.1, October 2016): U.S. Geological Survey Scientific Investigations Report 2016–5048, 55 p., http://dx.doi.org/10.3133/sir20165048.

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Year Published: 2016

Automatic delineation of seacliff limits using lidar-derived high-resolution DEMs in southern California

Seacliff erosion is a serious hazard with implications for coastal management and is often estimated using successive hand-digitized cliff tops or bases (toe) to assess cliff retreat. Even if efforts are made to standardize manual digitizing and eliminate subjectivity, the delineation of cliffs is time-consuming and depends on the analyst's...

Palaseanu-Lovejoy, Monica; Danielson, Jeffrey J.; Thatcher, Cindy A.; Foxgrover, Amy C.; Barnard, Patrick L.; Brock, John C.; Young, Adam

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Year Published: 2016

Geology and mineral resources of the North-Central Idaho Sagebrush Focal Area: Chapter C in Mineral resources of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming

SummaryThe U.S. Department of the Interior has proposed to withdraw approximately 10 million acres of Federal lands from mineral entry (subject to valid existing rights) from 12 million acres of lands defined as Sagebrush Focal Areas (SFAs) in Idaho, Montana, Nevada, Oregon, Utah, and Wyoming (for further discussion on the lands involved see...

Lund, Karen; Zürcher, Lukas; Hofstra, Albert H.; Van Gosen, Bradley S.; Benson, Mary Ellen; Box, Stephen E.; Anderson, Eric D.; Bleiwas, Donald I.; DeAngelo, Jacob; Drake, Ronald M.; Fernette, Gregory L.; Giles, Stuart A.; Glen, Jonathan M. G.; Haacke, Jon E.; Horton, John D.; John, David A.; Robinson, Gilpin R.; Rockwell, Barnaby W.; San Juan, Carma A.; Shaffer, Brian N.; Smith, Steven M.; Williams, Colin F.
Lund, K., Zürcher, L., Hofstra, A.H., Van Gosen, B.S., Benson, M.E., Box, S.E., Anderson, E.D., Bleiwas, D.I., DeAngelo, J., Drake, R.M., II, Fernette, G.L., Giles, S.A., Glen, J.M.G., Haacke, J.E., Horton, J., John, D.M., Robinson, G.R., Jr., Rockwell, B.W., San Juan, C.A., Shaffer, B.N., Smith, S.M., and Williams, C.F., 2016, Geology and mineral resources of the North-Central Idaho Sagebrush Focal Area (ver. 1.1, October 27, 2016): U.S. Geological Survey Scientific Investigations Report 2016–5089 –C, 147 p., http://dx.doi.org/10.3133/sir20165089C.

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Year Published: 2016

Geology and mineral resources of the North-Central Montana Sagebrush Focal Area: Chapter D in Mineral resources of the Sagebrush Focal Areas of Idaho, Montana, Nevada, Oregon, Utah, and Wyoming

SummaryThe U.S. Department of the Interior has proposed to withdraw approximately 10 million acres of Federal lands from mineral entry (subject to valid existing rights) from 12 million acres of lands defined as Sagebrush Focal Areas (SFAs) in Idaho, Montana, Nevada, Oregon, Utah, and Wyoming (for further discussion on the lands involved see...

Mauk, Jeffrey L.; Zientek, Michael L.; Hearn, B. Carter; Parks, Heather L.; Jenkins, M. Christopher; Anderson, Eric D.; Benson, Mary Ellen; Bleiwas, Donald I.; DeAngelo, Jacob; Denning, Paul; Dicken, Connie L.; Drake, Ronald M.; Fernette, Gregory L.; Folger, Helen W.; Giles, Stuart A.; Glen, Jonathan M. G.; Granitto, Matthew; Haacke, Jon E.; Horton, John D.; Kelley, Karen D.; Ober, Joyce A.; Rockwell, Barnaby W.; San Juan, Carma A.; Sangine, Elizabeth S.; Schweitzer, Peter N.; Shaffer, Brian N.; Smith, Steven M.; Williams, Colin F.; Yager, Douglas B.
Mauk, J.L., Zientek, M.L., Hearn, B.C., Jr., Parks, H.L., Jenkins, M.C., Anderson, E.D., Benson, M.E., Bleiwas, D.I., DeAngelo, J., Denning, P.D., Dicken, C.L., Drake, R.M., II, Fernette, G.L., Folger, H.W., Giles, S.A., Glen, J.M.G., Granitto, M., Haacke, J.E., Horton, J.D., Kelley, K.D., Ober, J.A., Rockwell, B.W., San Juan, C.A., Sangine, E.S., Schweitzer, P.N., Shaffer, B.N., Smith, S.M., Williams, C.F., and Yager, D.B., 2016, Geology and mineral resources of the North-Central Montana Sagebrush Focal Area: U.S. Geological Survey Scientific Investigations Report 2016–5089–D, 104 p., http://dx.doi.org/10.3133/sir20165089D.

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Year Published: 2016

A world of minerals in your mobile device

Mobile phones and other high-technology communications devices could not exist without mineral commodities. More than one-half of all components in a mobile device—including its electronics, display, battery, speakers, and more—are made from mined and semiprocessed materials (mineral commodities). Some mineral commodities can be recovered as...

Jenness, Jane E.; Ober, Joyce A.; Wilkins, Aleeza M.; Gambogi, Joseph
Jenness, J.E., Ober, J.A., Wilkins, A.M., and Gambogi, Joseph, 2016, A world of minerals in your mobile device: U.S. Geological Survey General Information Product 167, 2 p., http://dx.doi.org/10.3133/gip167.

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Year Published: 2016

Organic petrology and geochemistry of mudrocks from the lacustrine Lucaogou Formation, Santanghu Basin, northwest China: Application to lake basin evolution

Exploration for tight oil in the frontier Santanghu Basin of northwest China has resulted in recent commercial discoveries sourced from the lacustrine Upper Permian Lucaogou Formation, already considered a “world class source rock” in the Junggar Basin to the west. Here we apply an integrated analytical program to carbonate-dominated mudrocks from...

Hackley, Paul C.; Fishman, Neil; Wu, Tao; Baugher, Gregory

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Year Published: 2016

Shale-gas assessment: Comparison of gas-in-place versus performance-based approaches

The recent interest in exploration for shale gas increases the demand for a reliable, compatible resource assessment. Many different assessment methods are used, commonly depending on types and quantity of data available, which may lead to significantly divergent results for the same shale-gas play. This study compares results obtained using...

Stueck, H.; Houseknecht, David W.; Franke, D.; Gautier, Donald L.; Bahr, A.; Ladage, S.
Stueck, H., Houseknecht, D., Franke, D., Gautier, D., Bahr, A., and Ladage, S., 2016, Shale-gas assessment: Comparison of gas-in-place versus performance-based approaches: Natural Resources Research, v. 25, p. 315–329, doi.org/10.1007/s11053-015-9283-y.

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Year Published: 2016

Application of organic petrography in North American shale petroleum systems: A review

Organic petrography via incident light microscopy has broad application to shale petroleum systems, including delineation of thermal maturity windows and determination of organo-facies. Incident light microscopy allows practitioners the ability to identify various types of organic components and demonstrates that solid bitumen is the dominant...

Hackley, Paul C.; Cardott, Brian J.

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Year Published: 2016

Carbon and oxygen isotopic composition of coal and carbon dioxide derived from laboratory coal combustion: A preliminary study

The concentration of carbon dioxide (CO2) in the atmosphere has dramatically increased from the start of the industrial revolution in the mid-1700s to present levels exceeding 400 ppm. Carbon dioxide derived from fossil fuel combustion is a greenhouse gas and a major contributor to on-going climate change. Carbon and oxygen stable isotope...

Warwick, Peter D.; Ruppert, Leslie F.
Warwick. P.D., and Ruppert, L.F., 2016, Carbon and oxygen isotopic composition of coal and carbon dioxide derived from laboratory coal combustion─A preliminary study: International Journal of Coal Geology, v. 166, p. 128-135, available at http://dx.doi.org/10.1016/j.coal.2016.06.009.

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Year Published: 2016

Digital elevations and extents of regional hydrogeologic units in the Northern Atlantic Coastal Plain aquifer system from Long Island, New York, to North Carolina

Digital geospatial datasets of the extents and top elevations of the regional hydrogeologic units of the Northern Atlantic Coastal Plain aquifer system from Long Island, New York, to northeastern North Carolina were developed to provide an updated hydrogeologic framework to support analysis of groundwater resources. The 19 regional hydrogeologic...

Pope, Jason P.; Andreasen, David C.; Mcfarland, E. Randolph; Watt, Martha K.
Pope, J.P., Andreasen, D.C., McFarland, E.R., and Watt, M.K., 2016, Digital elevations and extents of regional hydrogeologic units in the Northern Atlantic Coastal Plain aquifer system from Long Island, New York, to North Carolina: U.S. Geological Survey Data Series 996, 28 p., http://dx.doi.org/10.3133/ds996.

Filter Total Items: 174
Installing storm surge sensors before Hurricane Sandy
October 28, 2012

USGS scientists, Michael Noll and Amy Simonson, installing storm surge sensors before Hurricane Sandy

USGS scientists, Michael Noll and Amy Simonson, installing storm surge sensors before Hurricane Sandy

woman pouring liquid in rack of test tubes
January 3, 2012

Soil Science

USGS hydrologist Hannah Ingleston extracting cations from soil samples using an ammonium chloride method.

Shenandoah forest, agriculture and developed land use percentages
December 31, 2011

Shenandoah forest, agriculture and developed land use percentages

Shenandoah forest, agriculture and developed land use percentages 

Grasses in Big Meadows in Shenandoah National Park Virginia
December 31, 2011

Grasses in Big Meadows in Shenandoah National Park Virginia

Grasses in Big Meadows in Shenandoah National Park Virginia

Rocky overlook in Shenandoah National Park
December 31, 2011

Rocky overlook in Shenandoah National Park

Rocky overlook in Shenandoah National Park

Looking east to the Atlantic Ocean from Cadillac Mtn. MA
December 31, 2008

The Atlantic Ocean from Cadillac Mountain, Maine

Looking east to the Atlantic Ocean from Cadillac Mountain, Maine.

USGS scientist with equipment used to inject fluids for a bioaugmentation experiment
October 14, 2008

Equipment for an Bioaugmentation Experiment at the Naval Air Warfare Center (NAWC) Research Site, West Trenton, New Jersey

The set up and equipment used for the bioaugmentation experiment at a fractured-rock contamination site. The site is contaminated with trichloroethene (TCE). The bladders contain the solutions that were injected into the subsurface. The injection well is right in front of the blue barrel. The experiment

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fog and pilings in a river
October 16, 2007

Early morning fog and pilings at Oswego River near Phoenix, NY

Early morning fog  and pilings at Oswego River near Phoenix, NY -  index velocity gaging station

big waterfalls
September 14, 2007

American Falls at Niagara Falls, NY

American Falls at Niagara Falls, NY