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Page 3211, results 80251 - 80275

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Not all publications have extents, not all extents are completely accurate
Assessment of the alluvial sediments in the Big Thompson River Valley, Colorado
Adrienne Barnett, Karl J. Ellefsen
2000, Data Series 66
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 refraction data were used to estimate velocities and thickness for a layered-earth model; from these models, three cross sections of the river valley...
Publications of the Western Earth Surface Processes Team, 1999
Paul Stone, Charles L. Powell II
2000, Open-File Report 2000-215
The Western Earth Surfaces Processes Team (WESPT) of the U.S. Geological Survey, Geologic Division (USGS, GD), conducts geologic mapping and related topical earth- science studies in the western United States. This work is focused on areas where modern geologic maps and associated earth-science data are needed to address key societal...
Characterization of poxviruses from forest birds in Hawaii
Deoki N. Tripathy, William M. Schnitzlein, Patrick J. Morris, Don L. Janssen, Jeffery K. Zuba, Greg Massey, Carter T. Atkinson
2000, Journal of Wildlife Diseases (36) 225-230
Two strains of avian pox viruses were isolated from cutaneous lesions in Hawaiian crows (Corvus hawaiiensis) examined in 1994 and a third from a biopsy obtained in 1992 from an infected bird of the Apapane species (Himatione sanguinea) by inoculation of the chorioallantoic membranes (CAM) of developing chicken embryos. The...
Dams built on pre-existing landslides
Robert L. Schuster
2000, Conference Paper
In this paper I summarize the results of a worldwide study of 167 dams that have been constructed on preexisting landslides. Many major landslides in the past have blocked, or partially blocked, river valleys, providing possible dam sites that at first sight have appeared to be ideal. Thus, dams were...
Detrital zircon geochronology of the Shoo Fly Complex, northern Sierra terrane, northeastern California
James P. Harding, George E. Gehrels, David S. Harwood, Gary H. Girty
M. J. Soreghan, George E. Gehrels, editor(s)
2000, Book chapter, Paleozoic and Triassic paleogeography and tectonics of western Nevada and northern California
U-Pb analyses have been conducted on 92 individual detrital zircon grains from 4 of the main thrust sheets of the Shoo Fly Complex. Samples from the Culbertson Lake allochthon, Duncan Peak allochthon, and Lang sequence yield mainly 1.80-2.10, 2.20-2.45, and 2.55-2.70 Ga ages, which...
Workshop discusses community models for coastal sediment transport
Christopher R. Sherwood, Richard P. Signell, Courtney K. Harris, Bradford Butman
2000, Eos Science News (81) 502
Numerical models of coastal sediment transport are increasingly used to address problems ranging from remediation of contaminated sediments, to siting of sewage outfalls and disposal sites, to evaluating impacts of coastal development. They are also used as a test bed for sediment-transport algorithms, to provide realistic settings for biological and...
Cambrian Pelecypoda (Mollusca)
J. Pojeta Jr.
2000, American Malacological Bulletin (15) 157-166
The record of Cambrian bivalved organisms that have been placed in the Mollusca includes undoubted pelecypods and other bivalved shells. This record is reviewed herein. Additional topotype material of Delgado's (1904, Communicacoes da Commissao do Servico Geologico de Portugal 5:307-374) Lower Cambrian specimens from Portugal shows that they are distorted...
Population status of the Tinian Monarch (Monarcha takatsukasae) on Tinian, Commonwealth of the Northern Mariana Islands
Michael Lusk, Steve C. Hess, Michelle H. Reynolds, Scott Johnston
2000, Micronesica (32) 181-190
We conducted surveys to evaluate the current population status of the Tinian Monarch (Monarcha takatsukasae), an insectivorous forest bird restricted to the island of Tinian, Commonwealth of the Northern Mariana Islands. In 1996, we recounted transects surveyed in 1982 and used the same analysis procedure to compare 1982 and 1996...
MTBE; to what extent will past releases contaminate community water supply wells?(Brief Article)
Richard Johnson, James Pankow, David A. Bender, Curtis Price, John S. Zogorski
2000, Environmental Science & Technology (34) 2100A-217A
The increasing frequency of detection of the widely used gasoline additive methyl tertbutyl ether (MTBE) in both ground- and surface waters is receiving much attention from the media, environmental scientists, state environmental agencies, and federal agencies. At the national level, the September 15,1999, Report of the Blue Ribbon Panel on Oxygenates...
Tectono-magmatic processes investigated at deep-water flanks of Hawaiian volcanoes
J. Naka, E Takahasi, D. Clague, Takeshi Hanyu, E. Herrero-Bervera, J. Ishibashi, Osamu Ishizuka, K. Johnson, T. Kanamatsu, I. Kaneoka, Peter W. Lipman, A. Malahoff, Gary M. McMurtry, B. Midson, Jeff Moore, J. Morgan, T. Naganuma, K Nakajima, T Oomori, Aaron Pietruszka, Satake Kenji, David R. Sherrod, Tsugio Shibata, K Shinozaki, Thomas W. Sisson, John R. Smith, S. Takarada, C. Thomber, Frank A. Trusdell, Nohiro Tsuboyama, T. Ui, Susumu Umino, K. Uto, H. Yokose
2000, Eos, Transactions, American Geophysical Union (81) 221-226
Hawaiian volcanoes are exceptional examples of intraplate hotspot volcanism. Hotspot volcanoes, which frequently host large eruptions and related earthquakes, flank‐failure landslides, and associated tsunamis, can present severe hazards to populated regions. Many studies have focused on subaerial parts of Hawaiian volcanoes, but the deep‐water flanks of the edifices, which can...
Subaqueous lava flow lobes, observed on ROV dives off Hawaii
Susumu Umino, Peter W. Lipman, Sumie Obata
2000, Geology (28) 503-506
Remotely operated vehicle (ROV) KAIKO dives north of Oahu Island, Hawaii, and on the lower south rift zone of Loihi Seamount revealed diverse flow morphologies of submarine lava that correlate with slope and rate of lava delivery. Steep to moderate (>10°) slopes are covered with elongate pillows and narrow pahoehoe...
Conveying multiple, complex themes and classes for natural resource assessments
Elijah Ramsey III, Marshall L. Strong
2000, Geocarto International (15) 31-38
Two methods were used to convey the spatial association between a classified forested landscape, the distribution of a hurricane impact, and the subsequent recovery of the habitat from the storm. The first method used a constant hue matrix with varying intensity to visually represent combinations of impact and recovery magnitudes....