Petroleum systems of the San Joaquin Basin Province, California -- geochemical characteristics of oil types: Chapter 9 in Petroleum systems and geologic assessment of oil and gas in the San Joaquin Basin Province, California
Paul G. Lillis, Leslie B. Magoon
2007, Professional Paper 1713-9
New analyses of 120 oil samples combined with 139 previously published oil analyses were used to characterize and map the distribution of oil types in the San Joaquin Basin, California. The results show that there are at least four oil types designated MM, ET, EK, and CM. Most of the...
Climatic variation and the distribution of an amphibian polyploid complex
C.R.V. Otto, J.W. Snodgrass, D.C. Forester, J.C. Mitchell, R.W. Miller
2007, Journal of Animal Ecology (76) 1053-1061
1. The establishment of polyploid populations involves the persistence and growth of the polyploid in the presence of the progenitor species. Although there have been a number of animal polyploid species documented, relatively few inquiries have been made into the large-scale mechanisms of polyploid establishment in animal groups. Herein we...
Chytridiomycosis widespread in Anurans of Northeastern United States
J. R. Longcore, J.E. Longcore, Allan P. Pessier, W.A. Halteman
2007, Journal of Wildlife Management (71) 435-444
An emerging disease of amphibians caused by the chytrid fungus Batrachochytrium dendrobatidis has been associated with morbidity, mortality, and extinction of species. Typically, researchers have detected B. dendrobatidis only when examining amphibians for causes of mortalities; few data exist on infection rates where mortalities are lacking. During May-September 2000-2002 we...
Modeling and mapping abundance of American Woodcock across the Midwestern and Northeastern United States
W.E. Thogmartin, J.R. Sauer, M. G. Knutson
2007, Journal of Wildlife Management (71) 376-382
We used an over-dispersed Poisson regression with fixed and random effects, fitted by Markov chain Monte Carlo methods, to model population spatial patterns of relative abundance of American woodcock (Scolopax minor) across its breeding range in the United States. We predicted North American woodcock Singing Ground Survey counts with a...
Iteroparity in the variable environment of the salamander Ambystoma tigrinum
D.R. Church, L.L. Bailey, H.M. Wilbur, W. L. Kendall, J.E. Hines
2007, Ecology (88) 891-903
Simultaneous estimation of survival, reproduction, and movement is essential to understanding how species maximize lifetime reproduction in environments that vary across space and time. We conducted a four-year, capture–recapture study of three populations of eastern tiger salamanders (Ambystoma tigrinum tigrinum) and used multistate mark–recapture statistical methods to estimate the manner...
Effects of habitat change along Breeding Bird Survey routes in the central Appalachians on Cerulean Warbler population
P. McElhone, P.W. Wood, D. Dawson
2007, Proceedings of the Annual Conference of the Southeastern Association of Fish and Wildlife Agencies (61) 131 (abs)
The cerulean warbler (Dendroica cerulea) is one of the highest priority bird species in the eastern United States because populations have declined 4.3% annually during 1966?2005 based on Breeding Bird Survey (BBS) data. Habitat loss and fragmentation due to land use changes is thought to be one of the...
South San Francisco Bay, California
Peter Dartnell, Helen Gibbons
2007, General Information Product 57
The U.S. Geological Survey, in cooperation with the California Coastal Conservancy and the National Oceanic and Atmospheric Administration, mapped the floor of south San Francisco Bay and adjoining land using single-beam sonar and airborne lidar (light detection and ranging). To learn more, visit http://pubs.usgs.gov/sim/2007/2987/. View eastward. Elevations in mapped area color...
Response of roseate tern to a shoreline protection project on Falkner Island, Connecticut
C.J. Rogers, Jeffrey A. Spendelow
Michael P. Guilfoyle, Richard A. Fischer, David N. Pashley, Casey A. Lott, editor(s)
2007, Book chapter, Summary of second regional workshop on dredging, beach nourishment, and birds on the North Atlantic Coast
Construction was initiated following the 2000 tern breeding season for Phase 1 of a planned two-phase "Shoreline Protection and Erosion Control Project" at the Falkner Island Unit of the USFWS Stewart B. McKinney National Wildlife Refuge located in Long Island Sound off the coast of Guilford, CT. When the Common...
Louisiana ground-water map no. 22: Generalized potentiometric surface of the Amite aquifer and the "2,800-foot" sand of the Baton Rouge area in southeastern Louisiana, June-August 2006
Robert B. Fendick Jr.
2007, Scientific Investigations Map 2984
The Amite aquifer and the “2,800-foot” sand of the Baton Rouge area (hereafter referred to as the “2,800-foot” sand) are principal sources of fresh ground water in southeastern Louisiana. Both the Amite aquifer and the “2,800-foot” sand are part of the Jasper equivalent aquifer system. The Amite aquifer is...
Streamflow, infiltration, and ground-water recharge at Abo Arroyo, New Mexico
Amy E. Stewart-Deaker, David A. Stonestrom, Stephanie J. Moore
David A. Stonestrom, Jim Constantz, Ty P.A. Ferré, Stanley A. Leake, editor(s)
2007, Professional Paper 1703-D
Abo Arroyo, an ephemeral tributary to the Rio Grande, rises in the largest upland catchment on the eastern side of the Middle Rio Grande Basin (MRGB). The 30-kilometer reach of channel between the mountain front and its confluence with the Rio Grande is incised into basin-fill sediments and separated from...
Infiltration and recharge at Sand Hollow, an upland bedrock basin in southwestern Utah
Victor M. Heilweil, D. Kip Solomon, Philip M. Gardner
David A. Stonestrom, Jim Constantz, Ty P.A. Ferré, Stanley A. Leake, editor(s)
2007, Professional Paper 1703-I
Permeable bedrock aquifers in arid regions of the southwestern United States are being used increasingly as a source of water for rapidly growing populations, yet in many areas little is known about recharge processes and amounts available for sustainable development. Environmental tracers were used in this study to investigate infiltration...
Ground-water recharge in the arid and semiarid southwestern United States: Climatic and geologic framework
David A. Stonestrom, James R. Harrill
David A. Stonestrom, Jim Constantz, Ty P.A. Ferré, Stanley A. Leake, editor(s)
2007, Professional Paper 1703-A
Ground-water recharge in the arid and semiarid southwestern United States results from the complex interplay of climate, geology, and vegetation across widely ranging spatial and temporal scales. Present-day recharge tends to be narrowly focused in time and space. Widespread water-table declines accompanied agricultural development during the twentieth century, demonstrating that...
Sedimentology and sequence stratigraphy of the Lower Cretaceous Fortress Mountain and Torok Formations exposed along the Siksikpuk River, North-Central Alaska
David W. Houseknecht, Christopher J. Schenk, Marwan A. Wartes
2007, Professional Paper 1739-D
An exposure of the Lower Cretaceous Fortress Mountain and Torok Formations along the Siksikpuk River in north-central Alaska provides a rare opportunity to observe the stratigraphic contact between these two formations and to interpret the depositional facies and sequence stratigraphy of the exposed strata. The Fortress Mountain Formation at the...
Ground-water recharge in the arid and semiarid southwestern United States
David A. Stonestrom, Jim Constantz, Ty P.A. Ferré, Stanley A. Leake, editor(s)
2007, Professional Paper 1703
Ground-water recharge in the arid and semiarid southwestern United States results from the complex interplay of climate, geology, and vegetation across widely ranging spatial and temporal scales. Present-day recharge tends to be narrowly focused in time and space. Widespread water-table declines accompanied agricultural development during the twentieth century, demonstrating that...
Estimated water use and availability in the East Narragansett Bay study area, Rhode Island, 1995-99
Emily C. Wild
2007, Scientific Investigations Report 2007-5168
Water availability became a concern in Rhode Island during a drought in 1999, and further investigation was needed to assess the current demands on the hydrologic system from withdrawals during periods of little to no precipitation. The low ground-water levels and streamflows measured in Rhode Island prompted initiation of a...
Base flow (1966-2005) and streamflow gain and loss (2006) of the Brazos River, McLennan County to Fort Bend County, Texas
Michael J. Turco, Jeffery W. East, Matthew S. Milburn
2007, Scientific Investigations Report 2007-5286
During 2006–07, the U.S. Geological Survey (USGS), in cooperation with the Texas Water Development Board, did a study to quantify historical (water years 1966–2005) base flow and streamflow gains and losses from two streamflow-measuring surveys (March and August 2006) in the Brazos River from McLennan County to Fort Bend County,...
Statistics of petroleum exploration in the world outside the United States and Canada through 2001
Emil D. Attanasi, Philip A. Freeman, Jennifer A. Glovier
2007, Circular 1288
Future oil and gas supplies depend, in part, on the reserves that are expected to be added through exploration and new discoveries. This Circular presents a summary of the statistics and an analysis of petroleum exploration in the world outside the United States and Canada (the study area) through 2001....
Geomorphology and tectonics at the intersection of Silurian and Death Valleys, Southern California - 2005 Guidebook Pacific Cell Friends of the Pleistocene
David M. Miller, Zenon C. Valin
2007, Open-File Report 2007-1424
This publication describes results from new regional and detailed surficial geologic mapping, combined with geomorphologic, geochronologic, and tectonic studies, in Silurian Valley and Death Valley, California. The studies address a long-standing problem, the tectonic and geomorphic evolution of the intersection between three regional tectonic provinces: the eastern California shear zone,...
Altitude and configuration of the potentiometric surface in the upper White Clay Creek and lower West Branch Brandywine Creek Basins including portions of Penn, London Grove, New Garden, Londonderry, West Marlborough, Highland, and East Fallowfield Townships and West Grove, Avondale, Modena, and South Coatesville boroughs, Chester County, Pennsylvania, May through July 2006
Lindsay B. Hale
2007, Scientific Investigations Map 2995
Since 1984, the U.S. Geological Survey (USGS) has been mapping the altitude and configuration of the potentiometric surface in Chester County as part of an ongoing cooperative program to measure and describe the water resources of the county. These maps can be used to determine the general direction of ground-water...
Effects of Withdrawals on Ground-Water Levels in Southern Maryland and the Adjacent Eastern Shore, 1980-2005
Daniel J. Soeder, Jeff P. Raffensperger, Mark R. Nardi
2007, Scientific Investigations Report 2007-5249
Ground water is the primary source of water supply in most areas of Maryland?s Atlantic Coastal Plain, including Southern Maryland. The counties in this area are experiencing some of the most rapid growth and development in the State, resulting in an increased demand for ground-water production. The cooperative, basic water-data program...
Seafloor mapping and benthic habitat GIS for southern California, volume III
Guy R. Cochrane, Nadine E. Golden, Pete Dartnell, Donna M. Schroeder, David P. Finlayson
2007, Open-File Report 2007-1271
From August 8-27, 2005, more than 75 km of the continental shelf (Fig. 1) in water depths of 20-70m southeast of Santa Barbara, were surveyed during the USGS cruise S-1-05-SC (http://walrus.wr.usgs.gov/infobank/s/s105sc/html/s-1-05-sc.meta.html). Both Interferometric sonar and 14 hours of both vertical and oblique georeferenced submarine digital video were collected to (1)...
A Science Plan for a Comprehensive Regional Assessment of the Atlantic Coastal Plain Aquifer System in Maryland
Robert J. Shedlock, David W. Bolton, Emery T. Cleaves, James M. Gerhart, Mark R. Nardi
2007, Open-File Report 2007-1205
The Maryland Coastal Plain region is, at present, largely dependent upon ground water for its water supply. Decades of increasing pumpage have caused ground-water levels in parts of the Maryland Coastal Plain to decline by as much as 2 feet per year in some areas of southern Maryland. Continued declines...
The Miocene Topanga group of southern California — A 100-year history of changes in stratigraphic nomenclature
Russell H. Campbell, Thane H. McCulloh, John G. Vedder
2007, Open-File Report 2007-1385
A review of selected literature summarizes the origin and chronology of changes in usage of 'Topanga' in the Miocene stratigraphic nomenclature of the Los Angeles Basin and adjacent areas in southern California. The review was done to summarize and reconcile some differences in Miocene stratigraphic nomenclature as applied to geologic...
Application of surface geophysical methods, with emphasis on magnetic resonance soundings, to characterize the hydrostratigraphy of the Brazos River alluvium aquifer, College Station, Texas, July 2006: A pilot study
Sachin D. Shah, Wade H. Kress, Anatoly Legchenko
2007, Scientific Investigations Report 2007-5203
The U.S. Geological Survey, in cooperation with the Texas Water Development Board, used surface geophysical methods at the Texas A&M University Brazos River Hydrologic Field Research Site near College Station, Texas, in a pilot study, to characterize the hydrostratigraphic properties of the Brazos River alluvium aquifer and determine the effectiveness...
Ages of Quaternary Rio Grande terrace-fill deposits, Albuquerque area, New Mexico
James Channing Cole, Shannon Mahan, Byron D. Stone, Ralph R. Shroba
2007, New Mexico Geology (29) 122-132
Results from luminescence dating on 13 samples from the Albuquerque area show that major-drainage fluvial deposits represent significant periods of aggradation that formed paired, correlatable terraces on the east and west margins of the Rio Grande valley . The youngest terrace fills (Primero Alto) formed during late Pleistocene as a...
