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51. Contaminated Sediments Database for Long Island Sound and the New York Bight [USGS_OFR_2003_241]
The Contaminated Sediments Database for Long Island Sound and the New York Bight provides a compilation of published and unpublished sediment texture and contaminant data. This report provides maps ...


52. Contribution of Atmospheric Deposition to Pesticide Loads in Surface Water Runoff [USGS_OFR_2005_1307]
A 3.5-year study was conducted to determine the signifcance of atmospheric deposition to the pesticide concentrations in runoff. Both wet and dry atmospheric depostion were collected at six sites ...


53. Cross-Sections and Maps Showing Double-Difference Relocated Earthquakes from 1984-2000 along the Hayward and Calaveras Faults, California [USGS_OFR_2004_1083]
This report present a cross-section and map views of earthquakes that occurred from 1984 to 2000 in the vicinity of the Hayward and Calaveras faults in the San Francisco Bay region, California. These ...


54. Data from Theodolite Measurements of Creep Rates on San Francisco Bay Region Faults, California: 1979-2007 [USGS_OFR_2007_1367]
The purpose is to update with six additional years of data, our creep data archive on San Francisco Bay region active faults for use by the scientific research community. Earlier data (1979-2001) ...


55. Databases and Simplified Geology for Mineralized Areas, Claims, Mines, and Prospects in Wyoming [USGS_OFR_2001_0497]
This data release contains mineral resource data for metallic and nonmetallic mineral sites in the State of Wyoming. Along with resource data is additional data, such as mineralized areas and mining ...


56. Debris Flows and Floods in Southeastern Arizona from Extreme Precipitation in July 2006-Magnitude, Frequency, and Sediment Delivery [USGS_OFR_2008_1274]
From July 31 to August 1, 2006, an unusual set of atmospheric conditions aligned to produce record floods and an unprecedented number of slope failures and debris flows in southeastern Arizona. During ...


57. Debris Flows and Record Floods from Extreme Mesoscale Convective Thunderstorms over the Santa Catalina Mountains, Arizona [USGS_OFR_2007_1108]
Ample geologic evidence indicates early Holocene and Pleistocene debris flows from the south side of the Santa Catalina Mountains north of Tucson, Arizona, but few records document historical events. ...


58. Deposition, Erosion, and Bathymetric Change in South San Francisco Bay: 1858-1983 [USGS_OFR_2004_1192]
Since the California Gold Rush of 1849, sediment deposition, erosion, and the bathymetry of South San Francisco Bay have been altered by both natural processes and human activities. Historical hydrographic ...


59. Desert Landforms and Surface Processes in the Mojave National Preserve and Vicinity [USGS_OFR_2004_1007]
Landscape features in the Mojave National Preserve are a product of ongoing processes involving tectonic forces, weathering, and erosion. Long-term climatic cycles (wet and dry periods) have left ...


60. Development of a Land Use Database for the Little Blackwater Watershed, Dorchester County, Maryland [USGS_OFR_2007_1309]
Many agricultural and forested areas in proximity to National Wildlife Refuges (NWR) are under increasing economic pressure to develop lands for commercial or residential development. The upper portion ...


61. Development of an Impervious-Surface Database for the Little Blackwater River Watershed, Dorchester County, Maryland [USGS_OFR_2007_1308]
Many agricultural and forested areas in proximity to National Wildlife Refuges (NWR) are under increasing economic pressure for commercial or residential development. The upper portion of the Little ...


62. Digital Data From the Taos West Aeromagnetic Survey in Taos County, New Mexico [USGS_OFR_2007_1248]
This report contains digital data, image files, and text files describing data formats and survey procedures for aeromagnetic data collected during a survey covering the southwestern portion of Taos ...


63. Digital Data Sets Describing Principal Aquifers, Surficial Geology, and Ground-Water Regions of the Conterminous United States [USGS_OFR_99-77]
This report contains digital data sets describing principal aquifers, surficial geology, and ground-water regions of the conterminous United States. The data source for the principal aquifers and ...


64. Digital Data Sets Describing Water Use, Toxic Chemical Releases, Metropolitan Areas, and Population Density of the Conterminous United States [USGS_OFR_99-78]
This report contains digital data sets describing water use, toxic chemical releases, metropolitan areas, and population density of the conterminous United States. The data source for the water-use ...


65. Digital Data Sets of Depth-Duration Frequency of Precipitation For Oklahoma [USGS_OFR_99-463]
These geospatial data sets were produced as part of a regional precipitation frequency analysis for Oklahoma. The data sets consist of surface grids of precipitation depths for seven frequencies (expressed ...


66. Digital Database of Selected Aggregate and Related Resources in Ada, Boise, Canyon, Elmore, Gem, and Owyhee Counties, Southwestern Idaho [USGS_OFR_2004_1067]
The U.S. Geological Survey (USGS) compiled a database of aggregate sites and geotechnical sample data for six counties - Ada, Boise, Canyon, Elmore, Gem, and Owyhee - in southwest Idaho as part of ...


67. Digital Engineering Aspects of Karst Map [USGS_OFR_2004_1352]
These data are digital facsimiles of the original 1984 Engineering Aspects of Karst map by Davies and others. This data set was converted from a printed map to a digital GIS coverage to provide users ...


68. Digital Files for Northeast Asia Geodynamics, Mineral Deposit Location, and Metallogenic Belt Maps, Stratigraphic Columns, Descriptions of Map Units, and Descriptions of Metallogenic Belts [USGS_OFR_2004_1252]
This publication contains a a series of files for Northeast Asia geodynamics, mineral deposit location, and metallogenic belt maps descriptions of map units and metallogenic belts, and stratigraphic ...


69. Dissolved Pesticide and Organic Carbon Concentrations Detected in Surface Waters, Northern Central Valley, California, 2001-2002 [USGS_OFR_2004_1214]
Field and laboratory studies were conducted to determine the effects of pesticide mixtures on Chinook salmon under various environmental conditions in surface waters of the northern Central Valley ...


70. Earthquake Ground-Motion Amplification in Southern California [USGS_OFR_2001_164]
The two most important factors influencing the level of earthquake ground motion at a site are the magnitude and distance of the earthquake. The map available here shows the influence of a third important ...


71. Effect of Structural Heterogeneity and Slip Distribution on Coseismic Vertical Displacement from Rupture on the Seattle Fault [USGS_OFR_2004_1010]
Workshops in 2001 and 2002 were convened to determine critical issues in the development of tsunami inundation maps for the Puget Sound region. The Tsunami Inundation Mapping Effort (TIME) is conducted ...


72. Emergency Assessment of Debris-Flow Hazards from Basins Burned by the Cedar and Paradise Fires of 2003, Southern California [USGS_OFR_2004_1011]
These maps present preliminary assessments of the probability of debris-flow activity and estimates of peak discharges that can potentially be generated by debris flows issuing from basins burned ...


73. Environmental Atlas of the Lake Pontchartrain Basin [USGS_OFR_2002_206]
The story of Lake Pontchartrain and its surrounding Basin is a fascinating saga. Created at the end of the last Ice Age, this estuary is much more than just a magnificent natural resource. It has ...


74. Estimated Magnitudes and Recurrence Intervals of Peak Flows on the Mousam and Little Ossipee Rivers for the Flood of April 2007 in Southern Maine [USGS_OFR_2007_1146]
Large amounts of rain fell on southern Maine from the afternoon of April 15, 2007, to the afternoon of April 16, 2007, causing substantial damage to houses, roads, and culverts. This report provides ...


75. Estimated Water Use in Puerto Rico, 2000 [USGS_OFR_2005_1201]
Water-use data were compiled for the 78 municipios of the Commonwealth of Puerto Rico for 2000. Five offstream categories were considered: public-supply water withdrawals, domestic self-supplied water ...


76. Estimates for Self-Supplied Domestic Withdrawals and Population Served, for Selected Principal Aquifers, Calendar Year 2005 [USGS_OFR_2010_1223]
The National Water-Quality Assessment Program of the U.S. Geological Survey has groundwater studies that focus on water-quality conditions in principal aquifers of the United States. The Program specifically ...


77. Estimates of Ground-Water Recharge Based on Streamflow-Hydrograph Methods: Pennsylvania [USGS_OFR_2005_1333]
This study, completed by the U.S. Geological Survey (USGS) in cooperation with the Pennsylvania Department of Conservation and Natural Resources, Bureau of Topographic and Geologic Survey (T&GS), ...


78. Estimates of Monthly Ground-Water Recharge to the Yakima River Basin Aquifer System, Washington, 1960-2001, for Current Land-Use and Land-Cover Conditions [USGS_OFR_2007_1238]
Monthly values of ground-water recharge, for current land-use and land-cover conditions, to the Yakima River Basin aquifer system, Washington, during water years 1960-2001 were previously estimated. ...


79. Estimating Landslide Losses - Preliminary Results of a Seven-State Pilot Project [USGS_OFR_2006_1032]
In 2001, the U.S. Geological Survey Landslide Hazards Program provided funding for seven State geological surveys to report on the status of landslide investigation strategies in each of their States, ...


80. Estimating Water Storage Capacity of Existing and Potentially Restorable Wetland Depressions in a Subbasin of the Red River of the North [USGS_OFR_2007_1159]
Concern over flooding along rivers in the Prairie Pothole Region has stimulated interest in developing spatially distributed hydrologic models to simulate the effects of wetland water storage on peak ...


81. Flood of June 4, 2002, in the Indian Creek Basin, Linn County, Iowa [USGS_OFR_2004_1074]
Severe flooding occurred on June 4, 2002, in the Indian Creek Basin in Linn County, Iowa, following thunderstorm activity over east-central Iowa. The rain gage at Cedar Rapids, Iowa, recorded a 24-hour ...


82. Flood of May 2006 in New Hampshire [USGS_OFR_2007_1122]
From May 13-17, 2006, central and southern New Hampshire experienced severe flooding caused by as much as 14 inches of rainfall in the region. As a result of the flood damage, a presidential disaster ...


83. Flooding of the Androscoggin River during December 18-19, 2003, in Canton, Maine [USGS_OFR_2005_1176]
The Androscoggin River flooded the town of Canton, Maine in December 2003, resulting in damage to and (or) evacuation of 44 homes. Streamflow records at the U.S. Geological Survey (USGS) streamflow-gaging ...


84. Fracture Trace Map and Single-Well Aquifer Test Results in a Carbonate Aquifer in Jefferson County, West Virginia [USGS_OFR_2005_1407]
These data contain information on the results of single-well aquifer tests, lineament analysis, and a bedrock geologic map compilation for Jefferson County, West Virginia. Efforts have been initiated ...


85. Generalized Lithology and Lithogeochemical Character of Near-Surface Bedrock in the New England Region [USGS_OFR_2003_225]
This geographic information system (GIS) data layer shows the dominant lithology and geochemical, termed lithogeochemical, character of near-surface bedrock in the New England region covering the ...


86. Geochemical Analyses of Geologic Materials from Areas of Critical Environmental Concern, Clark and Nye Counties, Nevada [USGS_OFR_2005_1450]
An assessment by the U.S. Geological Survey (USGS), Nevada Bureau of Mines and Geology (NBMG), and University of Nevada, Las Vegas (UNLV) is in progress of known and undiscovered mineral resources ...


87. Geochemical Data for Samples Collected in 2007 Near the Concealed Pebble Porphyry Cu-Au-Mo Deposit, Southwest Alaska [USGS_OFR_2008_1132]
In the summer of 2007, the U.S. Geological Survey (USGS) began an exploration geochemical research study over the Pebble porphyry copper-gold-molydenum (Cu-Au-Mo) deposit in southwest Alaska. The ...


88. Geochemical Data from Produced Water Contamination Investigations: Osage-Skiatook Petroleum Environmental Research (OSPER) Sites, Osage County, Oklahoma [USGS_OFR_2007_1055]
The USGS reports chemical and isotopic analyses of 345 water samples collected from the Osage-Skiatook Petroleum Environmental Research (OSPER) project. Water samples were collected as part of an ...


89. Geochemistry of Rock Samples Collected from the Iron Hill Carbonatite Complex, Gunnison County, Colorado [USGS_OFR_2008_1119]
A study conducted in 2006 by the U.S. Geological Survey collected 57 surface rock samples from nine types of intrusive rock in the Iron Hill carbonatite complex. This intrusive complex, located in ...


90. Geochemistry of Selected Coal Samples from Sumatra, Kalimantan, Sulawesi, and Papua, Indonesia [USGS_OFR_2007_1202]
Indonesia is an archipelago of more than 17,000 islands that stretches astride the equator for about 5,200 km in southeast Asia (figure 1) and includes major Cenozoic volcano-plutonic arcs, active ...


91. Geographic Information Systems (GIS) Compilation of Geophysical, Geologic, and Tectonic Data for the Circum-North Pacific [USGS_OFR_99-422]
The accompanying directory structure contains a Geographic Information Systems (GIS) compilation of geophysical, geological, and tectonic data for the Circum-North Pacific. This area includes ...


92. Geologic Characteristics of Benthic Habitats in Glacier Bay, Southeast Alaska [USGS_OFR_2006_1081]
In April 2004, more than 40 hours of georeferenced submarine digital video was collected in water depths of 15-370 m in Glacier Bay to (1) ground-truth existing geophysical data (bathymetry and acoustic ...


93. Geologic Shaded Relief Map of Venezuela [USGS_OFR_2005_1038]
The geologic shaded relief map of Venezuela was created by direct digitization of geologic and hydrologic data north of the Orinoco River from a 1:500,000 scale paper map set. These data were integrated ...


94. Geologic and Mineral Resource Map of Afghanistan [USGS_OFR_2006_1038]
This map shows the physical characteristics, geology and mineral resources for Afghanistan.


95. Geologic database for digital geology of California, Nevada, and Utah?An application of the North American Data Model [USGS_OFR_2003_135]
The USGS is creating an integrated national database for digital state geologic maps that includes stratigraphic, age, and lithologic information. The majority of the conterminous 48 states have digital ...


96. Geological Framework Data from Long Island Sound, 1981-1990: A Digital Data Release [USGS_OFR_2002_002]
Since 1980 the Coastal and Marine Geology Program of the U.S. Geological Survey and Connecticut Department of Environmental Protection have conducted a joint program of cooperative geologic research ...


97. Geology of the Ugashik-Mount Peulik Volcanic Center, Alaska [USGS_OFR_2004_1009]
The Ugashik-Mount Peulik volcanic center, 550 km southwest of Anchorage on the Alaska Peninsula, consists of the late Quaternary 5-km-wide Ugashik caldera and the stratovolcano Mount Peulik built ...


98. Geomorphic Map of Worcester County, Maryland, Interpreted from a LIDAR-Based, Digital Elevation Model [USGS_OFR_2008_1005]
A recently compiled mosaic of a LIDAR-based digital elevation model (DEM) is presented with geomorphic analysis of new macro-topographic details. The geologic framework of the surficial and near surface ...


99. Geophysical Characterization of Pre-Cenozoic Basement for Hydrocarbon Assessment, Yukon Flats, Alaska [USGS_OFR_2007_1208]
The Cenozoic basins of interior Alaska are poorly understood, but may host undiscovered hydrocarbon resources in sufficient quantities to serve remote villages and for possible export. Purported oil ...


100. Geophysical Data from Spring Valley to Delamar Valley, East-Central Nevada [USGS_OFR_2007_1190]
Cenozoic basins in eastern Nevada and western Utah constitute major ground-water recharge areas in the eastern part of the Great Basin and these were investigated to characterize the geologic framework ...


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