Stratigraphy, paleomagnetism, and anisotropy of magnetic susceptibility of the Miocene Stanislaus Group, central Sierra Nevada and Sweetwater Mountains, California and Nevada
Nathan M. King, John W. Hillhouse, Sherman Gromme, Brian P. Hausback, Christopher J. Pluhar
2007, Geosphere (3) 646-666
Paleomagnetism and anisotropy of magnetic susceptibility (AMS) reveal pyroclastic flow patterns, stratigraphic correlations, and tectonic rotations in the Miocene Stanislaus Group, an extensive volcanic sequence in the central Sierra Nevada, California, and in the Walker Lane of California and Nevada. The Stanislaus Group...
Color shaded-relief and surface-classification maps of the Fish Creek Area, Harrison Bay Quadrangle, Northern Alaska
John L. Mars, Christopher P. Garrity, David W. Houseknecht, Lee Amoroso, Donald C. Meares
2007, Scientific Investigations Map 2948
The northeastern part of the National Petroleum Reserve in Alaska (NPRA) has become an area of active petroleum exploration during the past five years. Recent leasing and exploration drilling in the NPRA requires the U.S. Bureau of Land Management (BLM) to manage and monitor a variety of surface activities that...
The National Map - Orthoimagery Layer
Water Resources Division, U.S. Geological Survey
2007, Fact Sheet 2007-3008
Many Federal, State, and local agencies use a common set of framework geographic information databases as a tool for economic and community development, land and natural resource management, and health and safety services. Emergency management and homeland security applications rely on this information. Private industry, nongovernmental organizations, and individual citizens...
Terrestrial LIDAR investigation of the December 2003 and January 2007 activations of the Northridge Bluff landslide, Daly City, California
Brian D. Collins, Robert Kayen, Thomas Reiss, Nicholas Sitar
2007, Open-File Report 2007-1079
On December 20, 2003 and again on January 1, 2007, landslides occurred along the coastal bluff that forms the west boundary of Daly City, California sending debris as far as 290 meters downhill and 90 meters into the ocean. This area is known for large landslide events where 150-meter tall...
Geological assessment of cores from the Great Bay National Wildlife Refuge, New Hampshire
Nora K. Foley, Robert A. Ayuso, Joseph D. Ayotte, Denise L. Montgomery, Gilpin R. Robinson Jr.
2007, Scientific Investigations Report 2006-5203
Geological sources of metals (especially arsenic and zinc) in aquifer bedrock were evaluated for their potential to contribute elevated values of metals to ground and surface waters in and around Rockingham County, New Hampshire. Ayotte and others (1999, 2003) had proposed that arsenic concentrations in ground water flowing through bedrock...
Status of ground-water levels and storage volume in the Equus Beds aquifer Near Wichita, Kansas, January 2003-January 2006
Cristi V. Hansen
2007, Scientific Investigations Report 2006-5321
The Equus Beds aquifer northwest of Wichita, Kansas, was developed to supply water to Wichita residents and for irrigation in south-central Kansas. Ground-water pumping for city and agricultural use from the aquifer caused water levels to decline in a large part of the aquifer northwest of Wichita. Irrigation pumpage in...
A Dreissena Risk Assessment for the Colorado River Ecosystem
Theodore A. Kennedy
2007, Open-File Report 2007-1085
Executive Summary Nonnative zebra and quagga mussels (Dreissena polymorpha and Dreissena bugensis, respectively; see photo above) were accidentally introduced to the Great Lakes in the 1980s and subsequently spread to watersheds of the Eastern United States (Strayer and others, 1999). The introduction of Dreissena mussels has been economically costly and has...
Deep-water chaunacid and lophiid anglerfishes (Pisces: Lophiiformes) off the Southeastern United States
John H. Caruso, Steve W. Ross, Kenneth J. Sulak, George R. Sedberry
2007, Journal of Fish Biology (70) 1015-1026
Recent research cruises to deep (80–910 m) reef habitats off the south-eastern U.S. and in the northern Gulf of Mexico have provided new information on the diagnostic characteristics, behaviours, colour patterns in life, bottom associations, distributions and maximum sizes of species of the anglerfish genera Chaunax, Lophiodes and Sladenia. Chaunax stigmaeus occurred much further south than...
Field and laboratory data From an earthquake history study of scarps of the Lake Creek-Boundary Creek fault between the Elwha River and Siebert Creek, Clallam County, Washington
Alan R. Nelson, Stephen F. Personius, Jason Buck, Lee-Ann Bradley, Ray E. Wells, Elizabeth R. Schermer
2007, Scientific Investigations Map 2961
Fault scarps recently discovered on Airborne Laser Swath Mapping (ALSM; also known as LiDAR) imagery show Holocene movement on the Lake Creek–Boundary Creek fault on the north flank of the Olympic Mountains of northwestern Washington State. Such recent movement suggests the fault is a potential source of large earthquakes. As...
Regional geochemical results from the reanalysis of NURE stream sediment samples -- Eagle 3 degree quadrangle, east-central Alaska
J.G. Crock, Paul H. Briggs, L. P. Gough, R. B. Wanty, Z. A. Brown
2007, Open-File Report 2007-1075
This report presents reconnaissance geochemical data for a cooperative study in the Fortymile Mining District, east-central Alaska, initiated in 1997. This study has been funded by the U.S. Geological Survey (USGS) Mineral Resources Program. Cooperative funds were provided from various State of Alaska sources through the Alaska Department of Natural...
Pliocene and Quaternary deposits in the northern part of the San Juan Basin in southwestern Colorado and northwestern New Mexico
Glenn R. Scott, David W. Moore
2007, Scientific Investigations Report 2007-5006
Unconsolidated late Cenozoic deposits in the northern part of the San Juan Basin range in age from late Pliocene to Holocene. Most of the deposits are alluvial gravel composed of resistant quartzite, sandstone, and igneous, metamorphic, and volcanic rocks derived from the uplifted central core of the San Juan Mountains...
Characterization of ground-water flow and water quality for the Madison and Minnelusa aquifers in northern Lawrence County, South Dakota
Larry D. Putnam, Andrew J. Long
2007, Scientific Investigations Report 2007-5001
The Madison and Minnelusa aquifers are used extensively for water supplies for the city of Spearfish and other users in northern Lawrence County, South Dakota. Ground water in the Madison and Minnelusa aquifers in the study area generally flows north from outcrop areas where recharge from sinking streams and infiltration...
Ohio Aquatic Gap Analysis-An Assessment of the Biodiversity and Conservation Status of Native Aquatic Animal Species
S. Alex Covert, Stephanie P. Kula, Laura A. Simonson
2007, Open-File Report 2006-1385
The goal of the GAP Analysis Program is to keep common species common by identifying those species and habitats that are not yet adequately represented in the existing matrix of conservation lands. The Gap Analysis Program (GAP) is sponsored by the Biological Resources Discipline of the U.S. Geological Survey (USGS)....
Ground-Water Recharge in Minnesota
G. N. Delin, J.D. Falteisek
2007, Fact Sheet 2007-3002
'Ground-water recharge' broadly describes the addition of water to the ground-water system. Most water recharging the ground-water system moves relatively rapidly to surface-water bodies and sustains streamflow, lake levels, and wetlands. Over the long term, recharge is generally balanced by discharge to surface waters, to plants, and to deeper parts...
Surficial sediment character of the New York-New Jersey offshore continental shelf region: A GIS compilation
S. Jeffress Williams, Matthew A. Arsenault, Lawrence J. Poppe, Jane A. Reid, Jamey M. Reid, Chris J. Jenkins
2007, Open-File Report 2006-1046
Broad continental shelf regions such as the New York Bight are the product of a complex geologic history and dynamic oceanographic processes, dominated by the Holocene marine transgression (>100 m sea-level rise) following the end of the last Pleistocene ice advance ~ 20,000 years ago. The area of the U.S....
Status review of the Marbled Murrelet (Brachyramphus marmoratus) in Alaska and British Columbia
John F. Piatt, K.J. Kuletz, A.E. Burger, Scott A. Hatch, Vicki L. Friesen, T.P. Birt, Mayumi L. Arimitsu, G.S. Drew, A.M.A. Harding, K.S. Bixler
2007, Open-File Report 2006-1387
The Marbled Murrelet (Brachyramphus marmoratus) is a small, diving seabird inhabiting inshore waters of the Northeastern Pacific Ocean. This species feeds on small, schooling fishes and zooplankton, and nests primarily on the moss-covered branches of large, old-growth conifers, and also, in some parts of its range, on the ground. We...
Type region of the Ione Formation (Eocene), central California: Stratigraphy, paleogeography, and relation to auriferous gravels
Scott Creely, Eric R. Force
2007, Open-File Report 2006-1378
The middle Eocene Ione Formation extends over 200 miles (320 km) along the western edge of the Sierra Nevada. Our study was concentrated in the type region, 30 miles (48 km) along strike. There a bedrock ridge forms the seaward western side of the Ione depositional tract, defining a subbasin...
Landscape evolution of Antarctica
S.S.R. Jamieson, D.E. Sugden
2007, Open-File Report 2007-1047-KP-05
The relative roles of fluvial versus glacial processes in shaping the landscape of Antarctica have been debated since the expeditions of Robert Scott and Ernest Shackleton in the early years of the 20th century. Here we build a synthesis of Antarctic landscape evolution based on the geomorphology of passive continental...
Surficial geology in central Narragansett Bay, Rhode Island: interpretations of sidescan sonar and multibeam bathymetry
Katherine Y. McMullen, Larry J. Poppe, Richard P. Signell, Jane F. Denny, Jim M. Crocker, Andrew L. Beaver, P. Tod Schattgen
2007, Open-File Report 2006-1199
The United States Geological Survey (USGS) is working cooperatively with the National Oceanic and Atmospheric Association (NOAA) to interpret the surficial geology in estuaries along the coast of the northeastern United States. The purpose of our present study is to determine the distributions of surficial sediments and sedimentary environments in...
Sediment geochemical records of productivity and oxygen depletion along the margin of western North America during the past 60,000 years: Teleconnections with Greenland Ice and the Cariaco Basin
Walter E. Dean
2007, Quaternary Science Reviews (26) 98-114
Many sediment records from the margins of the Californias (Alta and Baja) collected in water depths between 60 and 1200 m contain anoxic intervals (laminated sediments) that can be correlated with interstadial intervals as defined by the oxygen-isotope composition of Greenland ice (Dansgaard–Oeschger, D–O, cycles). These intervals include all or parts...
Heavy-mineral provenance in an estuarine environment, Willapa Bay, Washington, USA: palaeogeographic implications and estuarine evolution
Gretchen Luepke Bynum
2007, Developments in Sedimentology (58) 587-605
Modern sediments from representative localities in Willapa Bay, Washington, comprise two principal heavy-mineral suites. One contains approximately equivalent amounts of hornblende, orthopyroxene, and clinopyroxene; this is derived from the Columbia River, which discharges into the Pacific Ocean a short distance south of the bay. The other suite, dominated by clinopyroxene,...
Tectonic setting and metallogenesis of volcanogenic massive sulfide deposits in the Bonnifield Mining District, Northern Alaska Range: Chapter B in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project
Cynthia Dusel-Bacon, John N. Aleinikoff, Wayne R. Premo, Suzanne Paradis, Ilana Lohr-Schmidt
Larry P. Gough, Warren C. Day, editor(s)
2007, Scientific Investigations Report 2007-5289-B
This paper summarizes the results of field and laboratory investigations, including whole-rock geochemistry and radiogenic isotopes, of outcrop and drill core samples from volcanogenic massive sulfide (VMS) deposits and associated metaigneous rocks in the Wood River area of the Bonnifield mining district, northern Alaska Range (see fig. 1 of Editors’...
Mapping known and potential mineral occurrences and host rocks in the Bonnifield Mining District using minimal cloud- and snow-cover ASTER data: Chapter E in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project
Bernard E. Hubbard, Cynthia Dusel-Bacon, Lawrence C. Rowan, Robert G. Eppinger
Larry P. Gough, Warren C. Day, editor(s)
2007, Scientific Investigations Report 2007-5289-E
On July 8, 2003, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) sensor acquired satellite imagery of a 60-kilometer-wide swath covering a portion of the Bonnifield mining district within the southernmost part of the Tintina Gold Province, Alaska, under unusually favorable conditions of minimal cloud and snow cover. Although...
The biogeochemistry and occurrence of unusual plant species inhabiting acidic, metal-rich water, Red Mountain, Bonnifield district, Alaska Range: Chapter J in Recent U.S. Geological Survey studies in the Tintina Gold Province, Alaska, United States, and Yukon, Canada--results of a 5-year project
Larry P. Gough, Robert G. Eppinger, Paul H. Briggs
2007, Scientific Investigations Report 2007-5289-J
This report presents results on the occurrence and biogeochemistry of unusual plant species, and of their supporting sediment, in an undisturbed volcanogenic massive sulfide deposit in the Tintina Gold Province (see fig. 1 of Editors’ Preface and Overview). The extraordinary plant assemblage found growing in the acidic metal-rich waters that...
Insight into the geology of the East Antarctic hinterland: a study of sediment inclusions from ice cores of the Lake Vostok borehole
G.L. Leitchenkov, B.V. Belyatsky, N.V. Rodionov, S.A. Sergeev
2007, Open-File Report 2007-1047-SRP-014
The borehole at the southern part of subglacial Lake Vostok has been drilled into an ice layer that has been refrozen from the lake water. This ice layer contains random sediment inclusions, eight of which have been studied using state-of the-art analytical techniques. Six inclusions comprise soft aggregates consisting mainly of...
