Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

184563 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 2938, results 73426 - 73450

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Sociocultural dimensions of supply and demand for natural aggregate; examples from the Mid-Atlantic region, United States
Gilpin R. Robinson Jr., William M. Brown
2002, Open-File Report 2002-350
The United States uses large quantities of natural aggregate to build and maintain a continuously expanding infrastructure. In recent years, per capita demand for aggregate in the United States has grown to about 9.7 metric tons (10.7 tons) per person per year. Over the next 25 years, the aggregate industry...
Emergency assessment of potential debris-flow peak discharges, Coal Seam fire, Colorado
Susan H. Cannon, John A. Michael, Joseph E. Gartner, Alan H. Rea, Steven P. Garcia
2002, Open-File Report 2002-379
These maps present the results of assessments of peak discharges that can potentially be generated by debris flows issuing from the basins burned by the Coal Seam fire of June and July 2002, near Glenwood Springs, Colorado. The maps are based on a regression model for debris-flow peak discharge normalized...
Intensity distribution and isoseismal maps for the Nisqually, Washington, earthquake of 28 February 2001
James W. Dewey, Margaret G. Hopper, David J. Wald, Vincent Quitoriano, Elizabeth R. Adams
2002, Open-File Report 2002-346
We present isoseismal maps, macroseismic intensities, and community summaries of damage for the MW=6.8 Nisqually, Washington, earthquake of 28 February, 2001. For many communities, two types of macroseismic intensity are assigned, the traditional U.S. Geological Survey Modified Mercalli Intensities (USGS MMI) and a type of intensity newly introduced with this paper, the USGS Reviewed Community Internet Intensity...
Streamflow gain/loss in the Republican River basin, Nebraska, May 1975
Michaela R. Johnson, Jennifer S. Stanton, James F. Cornwall, Matthew K. Landon
2002, Open-File Report 2002-79
This arc and point data set contains streamflow-measurement sites and reaches indicating streamflow gain or loss under base-flow conditions along Republican River tributaries in Dundy and Chase Counties, Nebraska during May 19 to 20, 1975 (U.S. Geological Survey, 1976). The streamflow measurements were made to obtain data on ground-water/surface-water interaction....
Calculation of individual isotope equilibrium constants for implementation in geochemical models
Donald C. Thorstenson, David L. Parkhurst
2002, Water-Resources Investigations Report 2002-4172
Theory is derived from the work of Urey to calculate equilibrium constants commonly used in geochemical equilibrium and reaction-transport models for reactions of individual isotopic species. Urey showed that equilibrium constants of isotope exchange reactions for molecules that contain two or more atoms of the same element in equivalent positions...
Comparison of formation and fluid-column logs in a heterogeneous basalt aquifer
F.L. Paillet, J.H. Williams, D.S. Oki, K. D. Knutson
2002, Groundwater (40) 577-585
Deep observation boreholes in the vicinity of active production wells in Honolulu, Hawaii, exhibit the anomalous condition that fluid-column electrical conductivity logs and apparent profiles of pore-water electrical conductivity derived from induction conductivity logs are nearly identical if a formation factor of 12.5 is assumed. This condition is documented in...
Overview of catastrophic landslides of South America in the twentieth century
Robert Schuster, Daniel A. Salcedo, Luis Valenzuela
2002, Reviews in Engineering Geology (15) 1-34
This chapter summarizes the processes and effects of the most notable catastrophic mass movement events in South America in the twentieth century. We present 23 case histories of individual and regional landslide events, beginning at the northeast terminus of the Andes Mountains in Venezuela, proceeding counterclockwise down the Pacific Coast...
Late Cenozoic deformation by evaporite tectonism in the Grand Hogback monocline, southwest of the White River uplift, Colorado
Robert B. Scott, Bruce Bryant, William J. Perry Jr.
2002, Special Paper of the Geological Society of America (366) 121-148
Along 50 km of the complex, southwest-dipping, Laramide Grand Hogback monocline, which wraps around the southwest flank of the White River uplift in westcentral Colorado, detailed mapping provides evidence of late Cenozoic collapse that resulted from subsurface flow, diapirism, and dissolution of Pennsylvanian Eagle Valley Evaporite. Numerous discontinuous, small-amplitude, strike-parallel...
Ancestral submarine growth of Kïlauea Volcano and instability of its south flank
Peter W. Lipman, Thomas W. Sisson, Tadahide Ui, Jiro Naka, John R. Smith
2002, Book chapter, Hawaiian volcanoes: Deep underwater perspectives
Joint Japan-USA cruises in 1998-99 explored and sampled the previously unstudied deep offshore region south of Kilauea. Bathymetric features, dive observations, and recovered samples indicate that the 3-km-deep mid-slope bench, bounded seaward by a 2-km-high lower scarp, is underlain by massive turbidite sandstone and interbedded debris-flow breccia. Debris-flow clasts are...
Deep-sea volcaniclastic sedimentation around the southern flank of Hawaii
Jiro Naka, Toshiya Kanamatsu, Peter W. Lipman, Thomas W. Sisson, Nohiro Tsuboyama, Julia K. Morgan, John R. Smith, Tadahide Ui
2002, Book chapter, Hawaiian Volcanoes: Deep Underwater Perspectives
Most slopes of the Hilina slump are steep, but local small benches, mantled by volcaniclastic sand and fine sediments, were sampled in 1998-1999 with ROV KAIKO and DSRV SHINKAI 6500. Most surficial glass sands on the Hilina slump have compositions of subaerially erupted Kilauea lava, which fragmented and quenched as...
Emplacement and inflation structures of submarine and subaerial pahoehoe lavas from Hawaii
Susumu Umino, Sumie Obata, Peter W. Lipman, John R. Smith, Tsugio Shibata, Jiro Naka, Frank A. Trusdell
2002, Book chapter, Hawaiian Volcanoes: Deep Underwater Perspectives
Features of subaerial pahoehoe tumuli from Kilauea and Mauna Loa Volcanoes in Hawaii and subaqueous flow lobes from Loihi Seamount off Hawaii and north of Oahu Island document the controlling factors of flow-lobe formation. Studied subaerial flow-lobe tumuli consist of uplifted pahoehoe crust, formed from coalesced flow lobes. The south...
Submarine landslides and volcanic features on Kohala and Mauna Kea volcanoes and the Hana Ridge, Hawaii
J.R. Smith, Satake Kenji, J.K. Morgan, Peter W. Lipman
2002, Book chapter, Hawaiian Volcanoes: Deep Underwater Perspectives
The deep submarine eastern flanks of Mauna Kea, Kohala, and Haleakala volcanoes were mapped for the first time with a multibeam bathymetric and sidescan sonar system during joint Japan-US cruises aboard the JAMSTEC vessel R/V Yokosuka in 1999. The Pololu slump off northeast Kohala is overlain by a carbonate platform...
Submarine alkalic through tholeiitic shield-stage development of Kïlauea volcano, Hawai’i
Thomas W. Sisson, Peter W. Lipman, J. Naka
2002, Book, Hawaiian volcanoes: Deep underwater perspectives
The submarine Hilina region exposes a succession of magma compositions spanning the juvenile "Lō‘ihi" through tholeiitic shield stages of Kïlauea volcano. Early products, preserved as glass grains and clasts in volcaniclastic rocks of the 3000 m deep Hilina bench, include nephelinite, basanite, phonotephrite, hawaiite, alkali basalt, transitional basalt, and rare...
Effects of water use diversion regulation and conservation on sediemtn transport with comparisons from the United States
J. R. Gray, W. R. Osterkamp, Xu Jianhua
2002, Conference Paper, Proceedings of the International Soil Conservation Organization, May 27-31, Beijing
Too much sediment and too little water are related problems in China’s Yellow River Basin. Sediment yield in the basin averages about 2,100 t/(km2·a), greatest is of the world’s large rivers although the Yellow River ranks 31st in mean flow. A quarter of the sediment deposited in the 780-km lower...