Louisiana's barrier islands: A vanishing resource
Jefferey H. List
2004, Report
Louisiana's barrier islands are eroding so quickly that according to some estimates they will disappear by the end of this century. Although there is little human habitation on these islands, their erosion may have a severe impact on the environment landward of the barriers. As the islands disintegrate, the vast...
Mechanics of geological materials
Richard M. Iverson
2004, Book chapter, Encyclopedia of geomorphology
No abstract available....
Debris flow
Richard M. Iverson
2004, Book chapter, Encyclopedia of geomorphology
No abstract available....
Photomosaics and logs of trenches on the San Andreas Fault at Arano Flat near Watsonville, California
Thomas E. Fumal, Gordon F. Heingartner, Laura Samrad, Timothy E. Dawson, John C. Hamilton, John N. Baldwin
2004, Open-File Report 2003-450
We present photomosaics and logs of the walls of trenches excavated for a paleoseismic study at Arano Flat, one of two sites along the San Andreas fault in the Santa Cruz Mountains on the Kelley-Thompson Ranch. At this location, the fault consists of a narrow zone along the northeast side...
Photomosaics and logs of trenches on the San Andreas Fault, Thousand Palms Oasis, California
Thomas E. Fumal, William T. Frost, Christopher Garvin, John C. Hamilton, Monique Jaasma, Michael J. Rymer
2004, Open-File Report 2003-449
We present photomosaics and logs of the walls of trenches excavated for a paleoseismic study at Thousand Palms Oasis (Fig. 1). The site is located on the Mission Creek strand of the San Andreas fault zone, one of two major active strands of the fault in the Indio Hills along...
Tectonic framework and Late Cenozoic tectonic history of the northern part of Cyprus: Implications for earthquake hazards and regional tectonics
Richard W. Harrison, Wayne L. Newell, Hilmi Batihanli, Ioannis Panayides, John McGeehin, Shannon A. Mahan, Ayse Ozhur, Efthymios Tsiolakis, Mehmet Necdet
2004, Journal of Asian Earth Sciences (23) 191-210
Located near the triple junction of the African, Arabia, and Eurasian Plate, Cyprus has had an active and complex neotectonic history, which includes devastating historical earthquakes. Investigations into the tectonic framework of the northern part of Cyprus provide important insights into regional tectonism of the Eastern Mediterranean and Middle East....
Colorado bat conservation plan
Laura E. Ellison, Michael B. Wunder, Cheri A. Jones, Cyndi J. Mosch, Kirk W. Navo, Kathy Peckham, John E. Burghardt, Julie Annear, Ron West, Jeremy Siemers, Rick A. Adams, Erik Brekke
2004, Report
Eighteen of the 124 species of mammals inhabiting Colorado are bats. The unique life history characteristics of bats prevent many people from realizing that they comprise 15 percent of our native mammal fauna. Being fast fliers that are active at night, bats are mostly elusive to human senses except in...
Using discrete choice modeling to generate resource selection functions for female polar bears in the Beaufort Sea
George M. Durner, Steven C. Amstrup, Ryan M. Nielson, Trent McDonald
Snehalata Huzurbazar, editor(s)
2004, Conference Paper, Resource selection methods and applications: Proceedings of the 1st International Conference on Resource Selection
Polar bears (Ursus maritimus) depend on ice-covered seas to satisfy life history requirements. Modern threats to polar bears include oil spills in the marine environment and changes in ice composition resulting from climate change. Managers need practical models that explain the distribution of bears in order to assess the...
The Parkfield experiment; capturing what happens in an earthquake
Steve Hickman, John O. Langbein, Peter H. Stauffer
2004, Fact Sheet 049-02
To better understand what happens on and near a fault before, during, and after an earthquake, the U.S. Geological Survey (USGS) and the California Geological Survey began the Parkfield Earthquake Experiment in the 1980's. Researchers from the USGS and collaborating institutions have created a dense network of instruments on the...
Structural engineering research at the U.S. Geological Survey
Mehmet Celebi
2004, Conference Paper, Structures 2001: A structural engineering odyssey
The U.S. Geological Survey (USGS) is the lead federal agency of the National Earthquake Hazards Research Program (NEHRP) to conduct research related to earth sciences. Therefore, whether it is research on structures or other civil engineering disciplines, the subject matter of such research at USGS must meet NEHRP objectives. The...
Regional Aquifer-System Analysis— Appalachian Valley and Piedmont
U.S. Geological Survey
2004, Professional Paper 1422
The Regional Aquifer-System Analysis Program, RASA, represents a systematic effort to study a number of the Nation’s most important aquifer systems, which, in aggregate, underlie much of the country and which represent an important component of the Nation’s total water supply. In general, the boundaries of these studies are identified by...
Preliminary Digital Geologic Map of the Santa Ana 30' x 60' Quadrangle, Southern California
D. M. Morton (compiler), Kelly R. digital preparation by Bovard, Rachel M. Alvarez
2004, Open-File Report 99-172
Chapter A3. Cleaning of equipment for water sampling
Franceska D. Wilde, editor(s)
2004, Techniques of Water-Resources Investigations 09-A3
The National Field Manual for the Collection of Water-Quality Data (National Field Manual) describes protocols and provides guidelines for U.S. Geological Survey (USGS) personnel who collect data used to assess the quality of the Nation's surface-water and ground-water resources. Chapter A3 describes procedures for cleaning the equipment used to collect...
Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian Basin from Campbell County Kentucky, to Tazwell County, Virginia
Robert T. Ryder, John E. Repetski, Anita G. Harris, Erika E. Revised and digitized by Lentz
2004, IMAP 2530
No abstract available....
Snakeheads (Pisces, Channidae): A biological synopsis and risk assessment
Walter R. Courtenay Jr., James D. Williams
2004, Circular 1251
Snakeheads (family Channidae) are airbreathing freshwater fishes containing two genera, Channa with 26 species native to Asia, Malaysia, and Indonesia; and Parachanna with 3 species native to tropical Africa. Some snakeheads are small, reaching about 17 centimeters, but most are much larger, the largest reported to be 1.8 meters in...
Seismic response analysis of a 13-story steel moment-framed building in Alhambra, California
Janise E. Rodgers, Ahmet K. Sanli, Mehmet Çelebi
2004, Open-File Report 2004-1338
The seismic performance of steel moment-framed buildings has been of particular interest since brittle fractures were discovered at the beam-column connections of some frames following the M6.7 1994 Northridge earthquake. This report presents an investigation of the seismic behavior of an instrumented 13-story steel moment frame building located in the...
Thickness of Santa Fe Group sediments in the Espanola Basin south of Santa Fe, New Mexico, as estimated from aeromagnetic data
Jeffrey D. Phillips, V. J. S. Grauch
2004, Open-File Report 2004-1354
In the southern Espa?ola basin south of Santa Fe, New Mexico, weakly magnetic Santa Fe Group sediments of Oligocene to Pleistocene age, which represent the primary aquifers for the region, are locally underlain by moderately to strongly magnetic igneous and volcaniclastic rocks of Oligocene age. Where this relationship exists, the...
Quality and sources of ground water used for public supply in Salt Lake Valley, Salt Lake County, Utah, 2001
Susan A. Thiros, Andrew H. Manning
2004, Water-Resources Investigations Report 2003-4325
Ground water supplies about one-third of the water used by the public in Salt Lake Valley, Utah. The occurrence and distribution of natural and anthropogenic compounds in ground water used for public supply in the valley were evaluated. Water samples were collected from 31 public-supply wells in 2001 and analyzed...
SutraGUI, a graphical-user interface for SUTRA, a model for ground-water flow with solute or energy transport
Richard B. Winston, Clifford I. Voss
2004, Open-File Report 2003-285
This report describes SutraGUI, a flexible graphical user-interface (GUI) that supports two-dimensional (2D) and three-dimensional (3D) simulation with the U.S. Geological Survey (USGS) SUTRA ground-water-flow and transport model (Voss and Provost, 2002). SutraGUI allows the user to create SUTRA ground-water models graphically. SutraGUI provides all of the graphical functionality required...
Shaded relief, sea floor topography, and backscatter intensity of Massachusetts Bay and the Stellwagen Bank region offshore of Boston, Massachusetts
Bradford Butman, Page C. Valentine, William W. Danforth, Laura Hayes, Laurie A. Serrett, Tammie J. Middleton
2004, IMAP 2734
No abstract available....
Geographic Information System Tools for Conservation Planning
Melinda Knutson, Jason J. Rohweder
2004, Fact Sheet 2004-3030
Eolian Dust and the Origin of Sedimentary Chert
C. Blaine Cecil
2004, Open-File Report 2004-1098
This paper proposes an alternative model for the primary source of silica contained in bedded sedimentary chert. The proposed model is derived from three principal observations as follows: (1) eolian processes in warm-arid climates produce copious amounts of highly reactive fine-grained quartz particles (dust), (2) eolian processes in warm-arid...
Availability of ground-water data for Washington, 2004
Ronald C. Lane, Luis A. Fuste
2004, Fact Sheet 2004-3122
Water resources data Texas, water year 2003, volume 4. Colorado River basin, Lavaca River basin, and intervening coastal basins
Susan C. Gandara
2004, Water Data Report TX-03-4
Water-resources data for the 2003 water year for Texas are presented in six volumes, and consist of records of stage, discharge, and water quality of streams and canals; stage, contents, and water-quality of lakes and reservoirs; and water levels and water quality of ground-water wells. Volume 4 contains records for...
Purple loosestrife volunteers
Beth A. Middleton
2004, Fact Sheet 2004-3040
Purple loosestrife (Lythrum salicaria) is a perennial plant native to Eurasia where it grows along streams, rivers, and wet seepage areas (fig. 1). Seeds were inadvertently brought to North American territories in the ballast water of ships. Purple loosestrife was also intentionally planted throughout North America for its ornamental flowers...
