A Hammer-Impact, Aluminum, Shear-Wave Seismic Source
Seth S. Haines
2007, Open-File Report 2007-1406
Near-surface seismic surveys often employ hammer impacts to create seismic energy. Shear-wave surveys using horizontally polarized waves require horizontal hammer impacts against a rigid object (the source) that is coupled to the ground surface. I have designed, built, and tested a source made out of aluminum and equipped with spikes...
Southwestern Willow Flycatcher Breeding Site and Territory Summary - 2006
Scott L. Durst, Mark K. Sogge, Shay D. Stump, Sartor O. Williams, Barbara E. Kus, Susan J. Sferra
2007, Open-File Report 2007-1391
Introduction The Southwestern Willow Flycatcher (Empidonax traillii extimus) is an endangered bird that breeds only in dense riparian habitats in six southwestern states (southern California, extreme southern Nevada, southern Utah, southwestern Colorado, Arizona, and New Mexico). Since 1993, hundreds of Southwestern Willow Flycatcher surveys have been conducted each year, and many...
Total selenium and selenium species in irrigation drain inflows to the Salton Sea, California, April and July 2007
Thomas W. May, Michael J. Walther, Michael K. Saiki, William G. Brumbaugh
2007, Open-File Report 2007-1347
This report presents the results for two sampling periods during a 4-year monitoring survey to provide a characterization of selenium concentrations in selected irrigation drains flowing into the Salton Sea, California. Total selenium, selenium species, and total suspended solids were determined in water samples, and total selenium was determined in...
Water-quality, bed-sediment, and biological data (October 2005 through September 2006) and statistical summaries of long-term data for streams in the Clark Fork Basin, Montana
Kent A. Dodge, Michelle I. Hornberger, Jessica Dyke
2007, Open-File Report 2007-1301
Water, bed sediment, and biota were sampled in streams from Butte to below Milltown Reservoir as part of a long-term monitoring program in the upper Clark Fork basin; additional water-quality samples were collected in the Clark Fork basin from sites near Milltown Reservoir downstream to near the confluence of the...
Emergency Assessment of Debris-Flow Hazards from Basins Burned by the 2007 Poomacha Fire, San Diego County, Southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1411
INTRODUCTION The objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Poomacha Fire in San Diego County, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires in southern California...
Emergency Assessment of Debris-Flow Hazards from Basins Burned by the 2007 Santiago Fire, Orange County, Southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1419
INTRODUCTION The objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Santiago Fire in Orange County, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires in southern California in...
Emergency assessment of debris-flow hazards from basins burned by the 2007 Harris Fire, San Diego County, southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1421
IntroductionThe objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Harris Fire in San Diego County, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires in southern California...
Emergency Assessment of Debris-Flow Hazards from Basins Burned by the 2007 Canyon Fire, Los Angeles County, Southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1415
INTRODUCTION The objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Canyon Fire in Los Angeles County, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires in southern California...
Emergency Assessment of Debris-Flow Hazards from Basins Burned by the 2007 Ranch Fire, Ventura and Los Angeles Counties, Southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1418
INTRODUCTION The objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Ranch Fire in Ventura and Los Angeles Counties, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires in...
Emergency Assessment of Debris-Flow Hazards from Basins Burned by the 2007 Rice Fire, San Diego County, Southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1417
INTRODUCTION The objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Rice Fire in San Diego County, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires in southern California...
Emergency Assessment of Debris-Flow Hazards from Basins Burned by the 2007 Slide and Grass Valley Fires, San Bernardino County, Southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1416
INTRODUCTION The objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Slide and Grass Valley Fires in San Bernardino County, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires...
Emergency Assessment of Debris-Flow Hazards from Basins Burned by the 2007 Witch Fire, San Diego County, Southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1420
INTRODUCTION The objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Witch Fire in San Diego County, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires in southern California...
Major- and Trace-Element Concentrations in Rock Samples Collected in 2006 from the Taylor Mountains 1:250,000-scale Quadrangle, Alaska
Edward P. Klimasauskas, Marti L. Miller, Dwight Bradley
2007, Open-File Report 2007-1386
Introduction The Kuskokwim mineral belt of Bundtzen and Miller (1997) forms an important metallogenic region in southwestern Alaska that has yielded more than 3.22 million ounces of gold and 400,000 ounces of silver. Precious-metal and related deposits in this region associated with Late Cretaceous to early Tertiary igneous complexes extend into...
Emergency Assessment of Debris-Flow Hazards from Basins Burned by the 2007 Buckweed Fire, Los Angeles County, Southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1414
INTRODUCTION The objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Buckweed Fire in Los Angeles County, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires in southern California...
Emergency Assessment of Debris-Flow Hazards from Basins Burned by the 2007 Ammo Fire, San Diego County, Southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael, Mark A. Bauer, Susan C. Stitt, Donna L. Knifong, Bernard J. McNamara, Yvonne M. Roque
2007, Open-File Report 2007-1413
INTRODUCTION The objective of this report is to present a preliminary emergency assessment of the potential for debris-flow generation from basins burned by the Ammo Fire in San Diego County, southern California in 2007. Debris flows are among the most hazardous geologic phenomena; debris flows that followed wildfires in southern California...
Submarine ground water discharge and fate along the coast of Kaloko-Honokohau National Historical Park, Hawaii Part I: Time-series measurements of currents, waves, salinity and temperature: November 2005 – July 2006
M. Katherine Presto, Curt D. Storlazzi, Joshua B. Logan, Eric E. Grossman
2007, Open-File Report 2007-1310
The impending development for the west Hawai‘i coastline adjacent to Kaloko-Honokōhau National Historical Park (KAHO) may potentially alter coastal hydrology and water quality in the marine waters of the park. Water resources are perhaps the most significant natural and cultural resource component in the park, and are critical to the...
Southwest Exotic Mapping Program 2007: Occurrence summary and maps of select invasive, non-native plants in Arizona
Kathryn A. Thomas, Patricia Guertin
2007, Open-File Report 2007-1277
An important aspect of management of invasive, non-native plants (invasive plants) is information on the type, location, and magnitude of infestations. Regional development of this information requires an integrated program of data collection, management, and delivery. The Southwest Exotic Plant Mapping Program (SWEMP), coordinated through the U.S. Geological Survey’s Southwest...
Preliminary analytical results for ash and burned soils from the October 2007 southern California wildfires
Geoffrey S. Plumlee, Deborah A. Martin, Todd Hoefen, Raymond F. Kokaly, Philip Hageman, Alison Eckberg, Gregory P. Meeker, Monique Adams, Michael Anthony, Paul J. Lamothe
2007, Open-File Report 2007-1407
The U.S. Geological Survey (USGS) collected ash and burned soils from about 28 sites in southern California wildfire areas (Harris, Witch, Ammo, Santiago, Canyon and Grass Valley) from Nov. 2 through 9, 2007 (table 1). USGS researchers are applying a wide variety of analytical methods to these samples, with the...
Video documentation of experiments at the USGS debris-flow flume 1992–2024
Matthew Logan, Richard M. Iverson, Maciej K. Obryk
2007, Open-File Report 2007-1315
This set of videos presents about 19.1 hours of footage documenting the 183 experiments conducted at the USGS debris-flow flume from 1992 to 2024. Owing to improvements in video technology over the years, the quality of footage from recent experiments generally exceeds that from earlier experiments.Use the link...
Coal Rank and Stratigraphy of Pennsylvanian Coal and Coaly Shale Samples, Young County, North-Central Texas
Edgar H. Guevara, Caroline Breton, Paul C. Hackley
2007, Open-File Report 2007-1313
Vitrinite reflectance measurements were made to determine the rank of selected subsurface coal and coaly shale samples from Young County, north-central Texas, for the National Coal Resources Database System State Cooperative Program conducted by the Bureau of Economic Geology at The University of Texas at Austin. This research is the...
Thermal Maturity of Pennsylvanian Coals and Coaly Shales, Eastern Shelf and Fort Worth Basin, Texas
Paul C. Hackley, Edgar H. Guevara, Tucker F. Hentz, Robert W. Hook
2007, Open-File Report 2007-1312
The U.S. Geological Survey and the Texas Bureau of Economic Geology are engaged in an ongoing collaborative study to characterize the organic composition and thermal maturity of Upper Paleozoic coal-bearing strata from the Eastern Shelf of the Midland basin and from the Fort Worth basin, north-central Texas. Data derived from...
Long-term and storm-related shoreline change trends in the Florida Gulf Islands National Seashore
Cheryl J. Hapke, Mark Christiano
2007, Open-File Report 2007-1392
Coastal erosion on Northern Gulf of Mexico barrier islands is an ongoing issue that was exacerbated by the storm seasons of 2004 and 2005 when several hurricanes made landfall in the Gulf of Mexico. Two units of the Gulf Islands National Seashore (GUIS), located on Santa Rosa Island, a barrier...
Methods for the Emergency Assessment of Debris-Flow Hazards from Basins Burned by the Fires of 2007, Southern California
Susan H. Cannon, Joseph E. Gartner, John A. Michael
2007, Open-File Report 2007-1384
This report describes the approach used to assess potential debris-flow hazards from basins burned by the Buckweed, Santiago, Canyon, Poomacha, Ranch, Harris, Witch, Rice, Ammo, Slide, Grass Valley and Cajon Fires of 2007 in southern California. The assessments will be presented as a series of maps showing a relative ranking...
A GIS Analysis of Seagrass Resources and Condition Within Padre Island National Seashore, Texas
Christopher P. Onuf, Jaimie J. Ingold
2007, Open-File Report 2007-1261
A survey of the seagrass resources of Padre Island National Seashore was conducted in fall 2002 and 2003, with additional sampling through 2006, to resolve distribution questions. Location coordinates were recorded to thousandths of minutes of latitude and longitude and converted to decimal degrees (minus decimal degrees for longitude) for...
Characteristics of Fault Zones in Volcanic Rocks Near Yucca Flat, Nevada Test Site, Nevada
Donald S. Sweetkind, Ronald M. Drake II
2007, Open-File Report 2007-1293
During 2005 and 2006, the USGS conducted geological studies of fault zones at surface outcrops at the Nevada Test Site. The objectives of these studies were to characterize fault geometry, identify the presence of fault splays, and understand the width and internal architecture of fault zones. Geologic investigations were conducted...
