European Province Late Silurian brachiopods from the Ciudad Victoria area, Tamaulipas, northeastern Mexico
A. J. Boucot, Robert B. Blodgett, John H. Stewart
1997, Book chapter, Paleozoic sequence stratigraphy, biostratigraphy, and biogeography: Studies in honor of J. Granville ("Jess") Johnson
No abstract available....
Regional streamflow information in Alaska; an investment in the future
T. P. Brabets
1997, Open-File Report 96-630
Riparian cottonwood response to watertable declines
M. L. Scott, Patrick Shafroth, G.T. Auble, E. D. Eggleston
1997, The Green Line, Colorado Riparian Association Newsletter (8) 6-7
No abstract available....
U.S. Geological Survey Studies of Energy Resources in Sub-Saharan Africa
Water Resources Division, U.S. Geological Survey
1997, Fact Sheet 053-97
The U.S. Government and the American public need access to information on energy resources in sub-Saharan Africa.Sub-Saharan Africa (mostly Nigeria) produces 5 percent of the world's oil, while supplying the United States with 15 percent of our imports (Energy Information Administration). In the next 10 years, sub-Saharan oil and gas...
1997 flood tracking chart for the Red River of the North basin
G.J. Wiche, C.R. Martin, L.L. Albright, Geraldine B. Wald
1997, Open-File Report 97-193
The flood tracking chart for the Red River of the North Basin can be used by local citizens and emergency response personnel to determine the latest river stage. By comparing the current stage (water-surface elevation above some datum) and predicted flood crest to the recorded peak stages of previous floods,...
The U.S. Geological Survey Drinking Water Initiative
Water Resources Division, U.S. Geological Survey
1997, Fact Sheet 047-97
Safe drinking-water supplies are critical to maintaining and preserving public health. Although the Nation's drinking water is generally safe, natural and introduced contaminants in water supplies throughout the country have adversely affected human health. This new U.S. Geological Survey (USGS) initiative will provide information on the vulnerability of water supplies...
Geology, hydrology, and ground-water quality at the Byron Superfund site near Byron, Illinois
Robert T. Kay, Douglas J. Yeskis, William J. Bolen, James R. Rauman, Scott T. Prinos
1997, Water-Resources Investigations Report 95-4240
A study was conducted by the U.S. Geological Survey and the U.S. Environmental Protection Agency to define the geohydrology and contaminant distribution at a Superfund site near Byron, Illinois. Geologic units of interest beneath the site are the St. Peter Sandstone; the shale, dolomite and sandstone of the Glenwood Formation;...
Public-Water Supplies in Massachusetts and Rhode Island: Investigations of Processes Affecting Source-Water Quality
Robert M. Lent, Marcus C. Waldron, John C. Rader
1997, Fact Sheet 054-97
Body-mass, survival, and pairing consequences of winter-diet restriction in wood ducks
D.W. Demarest, Richard M. Kaminski, Leonard A. Brennan, C.R. Boyle
1997, Journal of Wildlife Management (61) 822-832
We conducted feeding experiments with captive, wild-strain wood ducks (Aix sponsa) during winters 1990-91 and 1991-92 to test effects of increasing levels of food restriction on body mass dynamics, mortality, and pair formation. Male and female wood ducks fed restricted diets (i.e., 5, 10, 15, or 20% less food [g]...
Mobile Response Team Saves Lives in Volcano Crises
John W. Ewert, C. Dan Miller, James W. Hendley II, Peter H. Stauffer
1997, Fact Sheet 064-97
The world's only volcano crisis response team, organized and operated by the USGS, can be quickly mobilized to assess and monitor hazards at volcanoes threatening to erupt. Since 1986, the team has responded to more than a dozen volcano crises as part of the Volcano Disaster Assistance Program (VDAP), a...
Living on active volcanoes - The Island of Hawai'i
Christina Heliker, Peter H. Stauffer, James W. Hendley II
1997, Fact Sheet 074-97
People on the Island of Hawai'i face many hazards that come with living on or near active volcanoes. These include lava flows, explosive eruptions, volcanic smog, damaging earthquakes, and tsunamis (giant seawaves). As the population of the island grows, the task of reducing the risk from volcano hazards becomes increasingly...
How Does Climate Change Influence Alaska's Vegetation?: Insights from the Fossil Record
Water Resources Division, U.S. Geological Survey
1997, Fact Sheet 071-97
Plant fossils, such as leaves, wood, cones, pollen, and seeds, provide important evidence of how Alaska's vegetation has responded to climate changes over time periods of centuries to millions of years. Long-term trends of global temperatures have been reconstructed from oxygen isotope measurements of microscopic fossils (foraminifera) in the Pacific...
Proterozoic structure, Cambrian rifting, and younger faulting as revealed by a regional seismic reflection network in the southern Illinois Basin
Christopher J. Potter, James A. Drahovzal, M. L. Sargent, J.H. McBride
1997, Seismological Research Letters (68) 537-552
Four high-quality seismic reflection profiles through the southern Illinois Basin, totaling 245 km in length, provide an excellent regional subsurface stratigraphic and structural framework for evaluation of seismic risk, hydrocarbon occurrence, and other regional geologic studies. These data provide extensive subsurface information on the geometry of the intersection of the...
Seismic interpretation of the deep structure of the Wabash Valley Fault System
G. W. Bear, J.A. Rupp, A.J. Rudman
1997, Seismological Research Letters (68) 624-640
Interpretations of newly available seismic reflection profiles near the center of the Illinois Basin indicate that the Wabash Valley Fault System is rooted in a series of basement-penetrating faults. The fault system is composed predominantly of north-northeast-trending high-angle normal faults. The largest faults in the system bound the 22-km wide...
Estimating age of sea otters with cementum layers in the first premolar
James L. Bodkin, Jack A. Ames, Ronald J. Jameson, Ancel M. Johnson, Gary M. Matson
1997, Journal of Wildlife Management (61) 967-973
We assessed sources of variation in the use of tooth cementum layers to determine age by comparing counts in premolar tooth sections to known ages of 20 sea otters (Enhydra lutris). Three readers examined each sample 3 times, and the 3 readings of each sample were averaged by reader to...
Seismic evidence of Quaternary faulting in the Benton Hills area, southeast Missouri
J. R. Palmer, M. Shoemaker, D. Hoffman, N.L. Anderson, J.D. Vaughn, R.W. Harrison
1997, Seismological Research Letters (68) 650-661
Two reflection seismic profiles at English Hill, across the southern edge of the Benton Hills escarpment, southeast Missouri, establish that geologic structures at English Hill are of tectonic origin. The lowland area to the south of the escarpment is relatively undisturbed. The geology at English Hill is structurally complex, and...
Inorganic and organic constituents and grain-size distribution in streambed sediment and ancillary data for the Connecticut, Housatonic, and Thames River Basins study unit, 1992-94
S.L. Harris
1997, Open-File Report 96-397
Boundary separating the seismically active reelfoot rift from the sparsely seismic Rough Creek graben, Kentucky and Illinois
R. L. Wheeler
1997, Seismological Research Letters (68) 586-598
The Reelfoot rift is the most active of six Iapetan rifts and grabens in central and eastern North America. In contrast, the Rough Creek graben is one of the least active, being seismically indistinguishable from the central craton of North America. Yet the rift and graben adjoin. Hazard assessment in...
Geomorphic response to tectonically-induced ground deformation in the Wabash Valley
G.S. Fraser, T.A. Thompson, G.A. Olyphant, L. Furer, S.W. Bennett
1997, Seismological Research Letters (68) 662-674
Numerous low- to moderate-intensity earthquakes have been recorded in a zone of diffuse modern seismicity in southwest Indiana, southeast Illinois, and northernmost Kentucky. Structural elements within the zone include the Wabash Valley Fault System, the LaSalle Anticlinal Belt in western Illinois, and the Rough Creek-Shawneetown Fault System in northern Kentucky....
Use of artificially created Douglas-fir snags by cavity-nesting birds
C. L. Chambers, T. Carrigan, T.E. Sabin, J. C. Tappeiner II, W.C. McComb
1997, Western Journal of Applied Forestry (12) 93-97
In western Oregon, we created snags by sawing tops off live Douglas-fir (Pseudotsuga menziesii) (n = 821) trees and monitored their condition and use by cavity-nesting birds. We created snags in three silvicultural treatments: modified clearcut stands, two-story stands, and small-patch group-selection stands. We used two snag patterns: clumped and...
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
1997, IMAP 2530
No abstract available....
1997 flood tracking chart for the Sheyenne River basin
Gregg J. Wiche, Cathy R. Martin, Luverne L. Albright, Geraldine B. Wald
1997, Open-File Report 97-177
The "1997 Flood Tracking Chart for the Sheyenne River Basin" can be used by local citizens and emergency response personnel to record the latest river stage and predicted flood-crest information. By comparing the current state (water-surface elevation above some datum) and predicted flood crest to the recorded peak stages of...
Mount St. Helens--From the 1980 Eruption to 1996
Steven R. Brantley, Bobbie Myers
1997, Fact Sheet 070-97
Geophysical setting of the Wabash Valley fault system
T.G. Hildenbrand, D. Ravat
1997, Seismological Research Letters (68) 567-585
Interpretation of existing regional magnetic and gravity data and new local high-resolution aeromagnetic data provides new insights on the tectonic history and structural development of the Wabash Valley Fault System in Illinois and Indiana. Enhancement of short-wavelength magnetic anomalies reveal numerous NW- to NNE-trending ultramafic dikes and six intrusive complexes...
Estimating age of sea otters with cementum layers in the first premolar
James L. Bodkin, Jack A. Ames, Ronald J. Jameson, Ancel M. Johnson, Gary M. Matson
1997, Journal of Wildlife Management (61) 967-973
We assessed sources of variation in the use of tooth cementum layers to determine age by comparing counts in premolar tooth sections to known ages of 20 sea otters (Enhydra lutris). Three readers examined each sample 3 times, and the 3 readings of each sample were averaged by reader to...
