Refinement of late-Early and Middle Miocene diatom biostratigraphy for the east coast of the United States
John A. Barron, James Browning, Peter Sugarman, Kenneth G. Miller
2013, Geosphere (9) 1286-1302
Integrated Ocean Drilling Program (IODP) Expedition 313 continuously cored Lower to Middle Miocene sequences at three continental shelf sites off New Jersey, USA. The most seaward of these, Site M29, contains a well-preserved Early and Middle Miocene succession of planktonic diatoms that have been independently correlated with the geomagnetic polarity...
Eastern musk turtle (Sternotherus odoratus)
Brad M. Glorioso
2013, Book chapter, The Reptiles of Tennessee
No abstract available....
Land-cover change in the conterminous United States from 1973 to 2000
Benjamin M. Sleeter, Terry L. Sohl, Thomas R. Loveland, Roger F. Auch, William Acevedo, Mark A. Drummond, Kristi L. Sayler, Stephen V. Stehman
2013, Global Environmental Change (23) 733-748
Land-cover change in the conterminous United States was quantified by interpreting change from satellite imagery for a sample stratified by 84 ecoregions. Gross and net changes between 11 land-cover classes were estimated for 5 dates of Landsat imagery (1973, 1980, 1986, 1992, and 2000). An estimated 673,000 km2(8.6%) of the...
The variability of California summertime marine stratus: impacts on surface air temperatures
Sam F. Iacobellis, Daniel R. Cayan
2013, Journal of Geophysical Research D: Atmospheres (118) 9105-9122
This study investigates the variability of clouds, primarily marine stratus clouds, and how they are associated with surface temperature anomalies over California, especially along the coastal margin. We focus on the summer months of June to September when marine stratus are the dominant cloud type. Data used include satellite cloud...
Quantifying wetland–aquifer interactions in a humid subtropical climate region: An integrated approach
Itza Mendoza-Sanchez, Mantha S. Phanikumar, Jie Niu, Jason R. Masoner, Isabelle M. Cozzarelli, Jennifer T. McGuire
2013, Journal of Hydrology (498) 237-253
Wetlands are widely recognized as sentinels of global climate change. Long-term monitoring data combined with process-based modeling has the potential to shed light on key processes and how they change over time. This paper reports the development and application of a simple water balance model based on long-term climate, soil,...
Geologic effects on groundwater salinity and discharge into an estuary
Christopher J. Russonielloa, Cristina Fernandeza, John F. Bratton, Joel F. Banaszakc, David E. Krantzc, Scott Andresd, Leonard F. Konikow, Holly A. Michaela
2013, Journal of Hydrology (498) 1-12
Submarine groundwater discharge (SGD) can be an important pathway for transport of nutrients and contaminants to estuaries. A better understanding of the geologic and hydrologic controls on these fluxes is critical for their estimation and management. We examined geologic features, porewater salinity, and SGD rates and patterns at an estuarine...
National assessment of geologic carbon dioxide storage resources: data
U.S. Geological Survey Geologic Carbon Dioxide Storage Resources Assessment Team
2013, Data Series 774
In 2012, the U.S. Geological Survey (USGS) completed the national assessment of geologic carbon dioxide storage resources. Its data and results are reported in three publications: the assessment data publication (this report), the assessment results publication (U.S. Geological Survey Geologic Carbon Dioxide Storage Resources Assessment Team, 2013a, USGS Circular 1386),...
National assessment of geologic carbon dioxide storage resources: results
U.S. Geological Survey Geologic Carbon Dioxide Storage Resources Assessment Team
2013, Circular 1386
In 2012, the U.S. Geological Survey (USGS) completed an assessment of the technically accessible storage resources (TASR) for carbon dioxide (CO2) in geologic formations underlying the onshore and State waters area of the United States. The formations assessed are at least 3,000 feet (914 meters) below the ground surface. The...
National assessment of geologic carbon dioxide storage resources: summary
U.S. Geological Survey Geologic Carbon Dioxide Storage Resources Assessment Team
2013, Fact Sheet 2013-3020
The U.S. Geological Survey (USGS) recently completed an evaluation of the technically accessible storage resource (TASR) for carbon dioxide (CO2) for 36 sedimentary basins in the onshore areas and State waters of the United States. The TASR is an estimate of the geologic storage resource that may be available for...
Estimating age ratios and size of Pacific walrus herds on coastal haulouts using video imaging
Daniel H. Monson, Mark S. Udevitz, Chadwick V. Jay
2013, PLoS ONE (8)
During Arctic summers, sea ice provides resting habitat for Pacific walruses as it drifts over foraging areas in the eastern Chukchi Sea. Climate-driven reductions in sea ice have recently created ice-free conditions in the Chukchi Sea by late summer causing walruses to rest at coastal haulouts along the Chukotka and...
Reproductive health of yellow perch, Perca flavescens, in Chesapeake Bay Tributaries
Vicki Blazer, A.E. Pinkney, James H. Uphoff
2013, Fact Sheet 2013-3055
Yellow perch live in creeks, rivers, ponds, lakes, and estuaries across the central and eastern United States and Canada. In Chesapeake Bay, they tolerate salinities up to one-third that of seawater. The adults reside in the brackish waters of the bay’s tributaries and migrate upstream to spawn. Yellow perch are...
Naturally occurring contaminants in the Piedmont and Blue Ridge crystalline-rock aquifers and Piedmont Early Mesozoic basin siliciclastic-rock aquifers, eastern United States, 1994–2008
Melinda J. Chapman, Charles A. Cravotta III,, Zoltan Szabo, Bruce D. Lindsay
2013, Scientific Investigations Report 2013-5072
Groundwater quality and aquifer lithologies in the Piedmont and Blue Ridge Physiographic Provinces in the eastern United States vary widely as a result of complex geologic history. Bedrock composition (mineralogy) and geochemical conditions in the aquifer directly affect the occurrence (presence in rock and groundwater) and distribution (concentration and mobility)...
Variations of iron flux and organic carbon remineralization in a subterranean estuary caused by interannual variations in recharge
Moutusi Roy, Jonathan B. Martin, Jaye E. Cable, Christopher G. Smith
2013, Geochimica et Cosmochimica Acta (103) 301-315
We determine the inter-annual variations in diagenetic reaction rates of sedimentary iron (Fe ) in an east Florida subterranean estuary and evaluate the connection between metal fluxes and recharge to the coastal aquifer. Over the three-year study period (from 2004 to 2007), the amount of Fe-oxides reduced at the...
Geologic map of the Valley Mountain 15’ quadrangle, San Bernardino and Riverside Counties, California
Keith A. Howard, John Bacheller, Todd T. Fitzgibbon, Robert E. Powell, Charlotte M. Allen
2013, Geologic Quadrangle 1767
The Valley Mountain 15’ quadrangle straddles the Pinto Mountain Fault, which bounds the eastern Transverse Ranges in the south against the Mojave Desert province in the north. The Pinto Mountains, part of the eastern Transverse Ranges in the south part of the quadrangle expose a series of Paleoproterozoic gneisses and...
The role of vermetid gastropods in the development of the Florida Middle Ground, northeast Gulf of Mexico
Christopher D. Reich, Richard Z. Poore, Todd D. Hickey
2013, Journal of Coastal Research 46-57
The Florida Middle Ground is a complex of north to northwest trending ridges that lie approximately 180 km northwest of Tampa Bay, Florida. The irregular ridges appear on the otherwise gently sloping West Florida shelf and exhibit between 10-15 m of relief. Modern studies interpret the ridges as remnants of...
Hydrogeology, groundwater seepage, nitrate distribution, and flux at the Raleigh hydrologic research station, Wake County, North Carolina, 2005-2007
Kristen Bukowski McSwain, Richard E. Bolich, Melinda J. Chapman
2013, Scientific Investigations Report 2013-5041
rom 2005 to 2007, the U.S. Geological Survey and the North Carolina Department of Environment and Natural Resources, Division of Water Quality, conducted a study to describe the geologic framework, measure groundwater quality, characterize the groundwater-flow system, and describe the groundwater/surface-water interaction at the 60-acre Raleigh hydrogeologic research station (RHRS)...
Pb-Sr-Nd isotopes in surficial materials at the Pebble Porphyry Cu-Au-Mo Deposit, Southwestern Alaska: can the mineralizing fingerprint be detected through cover?
Robert A. Ayuso, Karen D. Kelley, Robert G. Eppinger, Francesca Forni
2013, Economic Geology (108) 543-563
The Cretaceous Pebble porphyry Cu-Au-Mo deposit is covered by tundra and glacigenic sediments. Pb-Sr-Nd measurements were done on sediments and soils to establish baseline conditions prior to the onset of mining operations and contribute to the development of exploration methods for concealed base metal deposits of this type. Pebble rocks...
Atmospheric mercury and fine particulate matter in coastal New England: implications for mercury and trace element sources in the northeastern United States
Allan Kolker, Mark A. Engle, Bernhard Peucker-Ehrenbrink, Nicholas J. Geboy, David P. Krabbenhotft, Michael H. Bothner, Michael T. Tate
2013, Atmospheric Environment (79) 760-768
Intensive sampling of ambient atmospheric fine particulate matter was conducted at Woods Hole, Massachusetts over a four-month period from 3 April to 29 July, 2008, in conjunction with year-long deployment of the USGS Mobile Mercury Lab. Results were obtained for trace elements in fine particulate matter concurrently with determination of...
Abundance, distribution, and population trends of the iconic Hawaiian Honeycreeper, the ʻIʻiwi (Vestiaria coccinea) throughout the Hawaiian Islands
Eben H. Paxton, P. Marcos Gorresen, Richard J. Camp
2013, Open-File Report 2013-1150
Naturalists in the 1800s described the ʻIʻiwi (Vestiaria coccinea) as one of the most abundant forest birds, detected in forested areas from sea level to tree line across all the major Hawaiian Islands. However, in the late 1800s, ʻIʻiwi began to disappear from low elevation forests, and by the mid-1900s,...
Analytical approaches used in stream benthic macroinvertebrate biomonitoring programs of State agencies in the United States
James L. Carter, Vincent H. Resh
2013, Open-File Report 2013-1129
Biomonitoring programs based on benthic macroinvertebrates are well-established worldwide. Their value, however, depends on the appropriateness of the analytical techniques used. All United States State, benthic macroinvertebrate biomonitoring programs were surveyed regarding the purposes of their programs, quality-assurance and quality-control procedures used, habitat and water-chemistry data collected, treatment of macroinvertebrate...
Susceptibility of eastern U.S. habitats to invasion of Celastrus orbiculatus (oriental bittersweet) following fire
Stacey A. Leicht-Young, Noel B. Pavlovic, Ralph Grundel
2013, Forest Ecology and Management (302) 85-96
Fire effects on invasive species are an important land management issue in areas subjected to prescribed fires as well as wildfires. These effects on invasive species can be manifested across life stages. The liana Celastrus orbiculatus (oriental bittersweet) is a widespread invader of eastern US habitats including those where fire...
TerraSAR-X interferometry reveals small-scale deformation associated with the summit eruption of Kilauea Volcano, Hawai‘i
Nichole Richter, Michael P. Poland, Paul R. Lundgren
2013, Geophysical Research Letters (40) 1279-1283
On 19 March 2008, a small explosive eruption at the summit of Kīlauea Volcano, Hawai‘i, heralded the formation of a new vent along the east wall of Halema‘uma‘u Crater. In the ensuing years, the vent widened due to collapses of the unstable rim and conduit wall; some collapses impacted an...
Evaluation of the rhenium-osmium geochronometer in the Phosphoria petroleum system, Bighorn Basin of Wyoming and Montana, USA
Paul G. Lillis, David Selby
2013, Geochimica et Cosmochimica Acta (118) 312-330
Rhenium-osmium (Re-Os) geochronometry is applied to crude oils derived from the Permian Phosphoria Formation of the Bighorn Basin in Wyoming and Montana to determine whether the radiogenic age reflects the timing of petroleum generation, timing of migration, age of the source rock, or the timing of thermochemical sulfate reduction (TSR)....
Evidence for deposition of 10 million tonnes of impact spherules across four continents 12,800 y ago
James H. Wittke, James C. Weaver, Ted E. Bunch, James P. Kennett, Douglas J. Kennett, Andrew Moore, Gordon C. Hillman, Kenneth B. Tankersly, Albert C. Goodyear, Christopher R. Moore, I. Randolph Daniel Jr., Jack H. Ray, Neal H. Lopinot, David Ferraro, Isabel Israde-Alcantara, James L. Bischoff, Paul S. DeCarli, Robert E. Hermes, Johan B. Kloosterman, Zsolt Revay, George A. Howard, David R. Kimbel, Gunther Kletetschka, Ladislav Nabelek, Carl P. Lipo, Sachiko Sakai, Allen West, Richard B. Firestone
2013, Proceedings of the National Academy of Sciences of the United States of America (110) E2088-E2097
Airbursts/impacts by a fragmented comet or asteroid have been proposed at the Younger Dryas onset (12.80 ± 0.15 ka) based on identification of an assemblage of impact-related proxies, including microspherules, nanodiamonds, and iridium. Distributed across four continents at the Younger Dryas boundary (YDB), spherule peaks have been independently confirmed in...
Dating North America's oldest petroglyphs, Winnemucca Lake subbasin, Nevada
Larry V. Benson, E.M. Hattori, J. Southon, B. Aleck
2013, Journal of Archaeological Science (40) 4466-4476
On the west side of the Winnemucca Lake subbasin, Nevada, distinctive deeply carved meter-scale petroglyphs are closely spaced, forming panels on boulder-sized surfaces of a partially collapsed tufa mound. The large, complex motifs at this side are formed by deeply carved lines and cupules. A carbonate crust deposited between 10...
