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71 Titles Match Your Query
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1. Catalog of Mount St. Helens 2004-2007 Dome Samples with Major- and Trace-element Chemistry [USGS_OFR_2008_1130]
Sampling and analysis of eruptive products at Mount St. Helens is an integral part of volcano monitoring efforts conducted by the U.S. Geological Survey's Cascades Volcano Observatory (CVO). The objective ...


2. 2005 Hydrographic Survey of South San Francisco Bay, California [USGS_OFR_2007_1169]
An acoustic hydrographic survey of South San Francisco Bay (South Bay) was conducted in 2005. Over 20 million soundings were collected within an area of approximately 250 sq km (97 sq mi) of the bay ...


3. Assessment of the Alluvial Sediments in the Big Thompson River Valley, Colorado [USGS-DDS-066]
To obtain subsurface geologic information about the alluvium in the Big Thompson River valley, S -wave refraction data were collected along three roads that cross the valley. The traveltimes were ...


4. Bathymetry, Substrate and Circulation in Westcott Bay, San Juan Islands, Washington [USGS_OFR_2007_1305]
Nearshore bathymetry, substrate type, and circulation patterns in Westcott Bay, San Juan Islands, Washington, were mapped using two acoustic sonar systems, video and direct sampling of seafloor sediments. ...


5. Capitol Lake, Washington, 2004 Data Summary [USGS_DS_2006_180]
At the request of the Washington Department of Ecology (WDOE), the US Geological Survey (USGS) collected bathymetry data in Capital Lake, Olympia, Wash., on September 21, 2004. The data are to be ...


6. Catalog of Mount St. Helens 2004 - 2005 Tephra Samples with Major- and Trace-Element Geochemistry [USGS_OFR_2008_1131]
This open-file report presents a catalog of information about 135 ash samples along with geochemical analyses of bulk ash, glass and individual mineral grains from tephra deposited as a result of ...


7. Climate Variation at Flagstaff, Arizona 1950 to 2007 [USGS_OFR_2007_1410]
Flagstaff is becoming warmer and drier. Estimated average-daily temperatures of the Flagstaff area are 2.3-degrees warmer since 1970 and annual precipitation at Flagstaff has been below average for ...


8. Coastal Change Rates and Patterns: Kaloko-Honokohau National Historical Park, Hawaii [USGS_OFR_2005_1069]
A collaborative project between the U.S. Geological Survey's Coastal and Marine Geology Program and the National Park Service (NPS) has been developed to create an inventory of geologic ...


9. Coastal Circulation and Sediment Dynamics in Hanalei Bay, Kauai, Part IV, Measurements of Waves, Currents, Temperature, Salinity, and Turbidity, June–September 2006 [USGS_OFR_2008_1295]
High-resolution measurements of waves, currents, water levels, temperature, salinity and turbidity were made in Hanalei Bay, northern Kaua‘i, Hawai‘i, during the summer of 2006 to better understand ...


10. Coastal Circulation and Sediment Dynamics in Hanalei Bay, Kauai. PART I: Measurements of waves, currents, temperature, salinity and turbidity: June-August, 2005 [USGS_OFR_2006_1085]
High-resolution measurements of waves, currents, water levels, temperature, salinity and turbidity were made in Hanalei Bay, northern Kauai, Hawaii, during the summer of 2005 to better understand ...


11. Coastal Erosion and Wetland Change in Louisiana: Selected USGS Products [USGS-DDS-79]
Louisiana contains 25 percent of the vegetated wetlands and 40 percent of the tidal wetlands in the 48 conterminous States. These critical natural systems are being lost. Louisiana leads the Nation ...


12. Coastal Processes Study at Ocean Beach, San Francisco, CA: Summary of Data Collection 2004-2006 [USGS_OFR_2007_1217]
Ocean Beach in San Francisco, California, contains a persistent erosional section in the shadow of the San Francisco ebb tidal delta and south of Sloat Boulevard that threatens valuable public infrastructure ...


13. Compressional and Shear Wave Velocity Versus Depth in the San Francisco Bay Area, California: Rules for USGS Bay Area Velocity Model 05.0.0 [USGS_OFR_2005_1317]
This report summarizes and documents empirical compressional wave velocity (Vp) versus depth relationships for several important rock types in northern California used in constructing the new USGS ...


14. 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 ...


15. 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) ...


16. Database for the Geologic Map of the Chelan 30-Minute by 60-Minute Quadrangle, Washington [USGS_DS_2006_184]
This digital map database has been prepared by R.W. Tabor from the published Geologic map of the Chelan 30-Minute Quadrangle, Washington. Together with the accompanying text files as PDF, it provides ...


17. 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 ...


18. 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 ...


19. Digital database of recently active traces of the Hayward Fault, California [USGS_DS_2006_177]
The purpose of this map is to show the location of and evidence for recent movement on active fault traces within the Hayward Fault Zone, California. The mapped traces represent the integration of ...


20. 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 ...


21. Flow Velocity and Sediment Data Collected During 1990 and 1991 at National Canyon, Colorado River, Arizona [USGS_DS_2007_246]
During 1990 and 1991, a series of research flows were released from Glen Canyon Dam. Data collected at the streamflow-gaging station on the Colorado River above National Canyon near Supai from that ...


22. 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 ...


23. Geologic and Geophysical Characterization Studies of Yucca Mountain, Nevada, A Potential High-Level Radioactive-Waste Repository [USGS-DDS-058]
The safe disposal of high-level radioactive wastes is one of the most pressing environmental issues of modern times. At present, most of these materials are being stored under temporary conditions ...


24. 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 ...


25. Geophysical Studies Based on Gravity and Seismic Data of Tule Desert, Meadow Valley Wash, and California Wash Basins, Southern Nevada [USGS_OFR_2006_1396]
Gravity and seismic data from Tule Desert, Meadow Valley Wash, and California Wash, Nevada, provide insight into the subsurface geometry of these three basins that lie adjacent to rapidly developing ...


26. Geophysical Studies of the Crump Geyser Known Geothermal Resource Area, Oregon, in 1975 [USGS_OFR_2006_1110]
The U.S. Geological Survey (USGS) conducted geophysical studies in support of the resource appraisal of the Crump Geyser Known Geothermal Resource Area (KGRA). This area was designated as a KGRA by ...


27. Gravity Data from Dry Lake and Delamar Valleys, east-central Nevada [USGS_OFR_2008_1299]
Cenozoic basins in eastern Nevada and western Utah constitute major ground-water recharge areas in the eastern part of the Great Basin, and our continuing studies are intended to characterize the ...


28. Gravity Data from Newark Valley, White Pine County, Nevada [USGS_OFR_2007_1306]
The Newark Valley area, eastern Nevada is one of thirteen major ground-water basins investigated by the BARCAS (Basin and Range Carbonate Aquifer Study) Project. Gravity data are being used to help ...


29. Gravity Map of Nevada [USGS-DDS-42]
This publication consists of a report presented in Acrobat PDF format (560 KB), a large gravity-station-location map (PDF; 3.1 MB), and a data directory (12 MB). Gravity data for the entire state ...


30. Gravity and Magnetic Data in the Vicinity of Virgin Valley, Southern Nevada [USGS_OFR_2006_1042]
Gravity and magnetic data were collected in the vicinity of Virgin Valley to help better characterize the buried sedimentary Mesquite and Mormon basins. Detailed gravity measurements were made over ...


31. Ground-Magnetic Studies of the Amargosa Desert Region, California and Nevada [USGS_OFR_2005_1132]
High-resolution aeromagnetic surveys of the Amargosa Desert region, California and Nevada, exhibit a diverse array of magnetic anomalies reflecting a wide range of mid- and upper-crustal lithologies. ...


32. Hawaiian Volcano Observatory Seismic Data, January to December 2004 [USGS_OFR_2005_1315]
The Hawaiian Volcano Observatory (HVO) summary presents seismic data gathered during the year. The seismic summary is offered without interpretation as a source of preliminary data. It is complete ...


33. Hawaiian Volcano Observatory Seismic Data, January to December 2006 [USGS_OFR_2007_1073]
The Hawaiian Volcano Observatory (HVO) summary presents seismic data gathered during the year. The seismic summary is offered without interpretation as a source of preliminary data. It is complete ...


34. High-Resolution Topographic, Bathymetric, and Oceanographic Data for the Pleasure Point Area, Santa Cruz County, California: 2005-2007 [USGS_OFR_2007_1270]
The County of Santa Cruz Department of Public Works and the County of Santa Cruz Redevelopment Agency requested the U.S. Geological Survey (USGS) Western Coastal and Marine Geology Team (WCMG) to ...


35. Inversion of Gravity Data to Define the Pre-Cenozoic Surface and Regional Structures Possibly Influencing Groundwater Flow in the Rainier Mesa Region, Nye County, Nevada [USGS_OFR_2006_1299]
A three-dimensional inversion of gravity data from the Rainier Mesa area and surrounding regions reveals a topographically complex pre-Cenozoic basement surface. This model of the depth to pre-Cenozoic ...


36. Isostatic residual gravity map of The Santa Clara Valley and vicinity, California [USGS_OFR_2004_1297]
This map has 2 mGal gravity contours over a topographic base at a scale of 1:100,000. It covers the southern portion of San Francisco Bay, most of the Santa Clara Valley, and the surrounding mountains. ...


37. JAMSTEC multibeam surveys and submersible dives around the Hawaiian Islands: A collaborative Japan-USA exploration of Hawaii's deep seafloor [USGS_DS_2006_171]
This database release, USGS Data Series 171, contains data collected during four Japan-USA collaborative cruises that characterize the seafloor around the Hawaiian Islands. The Japan Agency for Marine-Earth ...


38. Landsat ETM+ False-Color Image Mosaics of Afghanistan [USGS_OFR_2007_1029]
In 2005, the U.S. Agency for International Development and the U.S. Trade and Development Agency contracted with the U.S. Geological Survey to perform assessments of the natural resources within Afghanistan. ...


39. Lava Flow Hazard Assessment, as of August 2007, for Kilauea East Rift Zone Eruptions, Hawai'i Island [USGS_OFR_2007_1264]
The most recent episode in the ongoing Pu OO-Kupaianaha eruption of Kilauea Volcano is currently producing lava flows north of the east rift zone. Although they pose no immediate threat to communities, ...


40. Liquefaction Hazard Maps for Three Earthquake Scenarios [USGS_OFR_2008_1270]
Maps showing the probability of surface manifestations of liquefaction in the northern Santa Clara Valley were prepared with liquefaction probability curves. The area includes the communities of San ...


41. Long-term Oceanographic Observations in Western Massachusetts Bay Offshore of Boston, Massachusetts: Data Report for 1989-2002 [USGS-DDS-74]
Long-term oceanographic observations have been made at two locations in western Massachusetts Bay: (1) Site A (42ý 22.6' N, 70ý 47.0' W, 33 m water depth) from from 1989 to 2002, and (2) Site B (42ý ...


42. Major- and Trace-Element Concentrations in Soils from Northern California: Results from the Geochemical Landscapes Project Pilot Study [USGS_OFR_2008_1306]
In 2004, the U.S. Geological Survey (USGS), the Geological Survey of Canada (GSC), and the Mexican Geological Survey (Servicio Geologico Mexicano, or SGM) initiated pilot studies in preparation for ...


43. Map showing Features and Displacements of the Scenic Drive Landslide, La Honda, California, During the Period March 31, 2005 - November 5, 2006 [USGS_OFR_2006_1397]
The Scenic Drive landslide in La Honda, San Mateo County, California began movement during the El Niño winter of 1997-98. Recurrent motion occurred during the mild El Nino winter of 2004-2005 and ...


44. Modeling Soil Moisture in the Mojave Desert [USGS_OFR_2008_1100]
This publication describes soil moisture modeling in the Mojave Desert. It provides a general background on the process of pedogenesis, or soil development, which is a major factor affecting soil ...


45. Modeling of the Climax Stock and Related Plutons Based on the Inversion of Magnetic data, Southwest Nevada [USGS_OFR_2004_1345]
The raster grid, model1, represents the elevation of the surface of the Climax and Gold Meadows Stocks. The elevation was generated by inverse modeling of the pseudogravity anomaly. This raster ...


46. Modified Mercalli Intensity Maps for the 1868 Hayward Earthquake Plotted in ShakeMap Format [USGS_OFR_2008_1121]
This data set provides Modified Mercalli Intensity maps for the Hayward earthquake of October 21, 1868. To construct the Modified Mercalli Intensity (MMI) ShakeMap for the 1868 Hayward earthquake, ...


47. Modified Mercalli Intensity Maps for the 1906 San Francisco Earthquake Plotted in ShakeMap Format [USGS_OFR_2005_1135]   PARENT METADATA
This website presents Modified Mercalli Intensity maps for the great San Francisco earthquake of April 18, 1906. These new maps combine two important developments. First, we have re-evaluated and ...


48. Molokai Benthic Habitat Mapping [USGS_OFR_2005_1070]
The detailed high-resolution map layer provided here documents habitat characterization of a critical coral reef in Hawai'i. Integration of the aerial imagery, SHOALS bathymetry, and field observations ...


49. National Assessment of Shoreline Change Part 4: Historical Coastal Cliff Retreat along the California Coast [USGS_OFR_2007_1133]
Coastal cliff retreat, the landward migration of the cliff face, is a chronic problem along many rocky coastlines in the United States. As coastal populations continue to grow and community infrastructures ...


50. National Geochemical Database: National Uranium Resource Evaluation Data for the Conterminous United States [USGS-DDS-18-A]
This is an online version of a CD-ROM publication. It is intended for use only on DOS-based computer systems. The files must be downloaded onto your computer before they can be used. The files are ...


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