Geochemistry of the Cambrian-Ordovician aquifer system in the northern Midwest, United States: D in Regional aquifer-system analysis
D. I. Siegel
1989, Professional Paper 1405-D
Distributions of solutes in aquifers of Cambrian and Ordovician age were studied in Minnesota, Wisconsin, Iowa, Illinois, northwestern Indiana, and northern Missouri to determine the sources of solutes and the probable chemical mechanisms that control regional variations in water quality. This work is part of the Northern Midwest Regional Aquifer-System...
Hydrogeology, ground-water movement, and subsurface storage in the Floridan aquifer system in southern Florida
Frederick W. Meyer
1989, Professional Paper 1403-G
The Floridan aquifer system of southern Florida is composed chiefly of carbonate rocks that range in age from early Miocene to Paleocene. The top of the aquifer system in southern Florida generally is at depths ranging from 500 to 1,000 feet, and the average thickness is about 3,000 feet. It...
The New Madrid earthquakes: An engineering-geologic interpretation of relict liquefaction features
Stephen F. Obermeier
1989, Professional Paper 1336-B
Earthquake-induced sand blows and sand-filled fissures are present in a belt 40 to 60 km. wide that extends from near Charleston, Mo., southward to about 20 km. south of Marked Tree, Ark. This region of earthquake-induced sand blows and other liquefaction-related features is almost exclusively in the St. Francis Basin,...
Investigations of the characteristics, origin, and residence time of the upland residual mantle of the Piedmont of Fairfax County, Virginia
M.J. Pavich, G. W. Leo, S. F. Obermeier, J.R. Estabrook
1989, Professional Paper 1352
Undisturbed cores of upland regolith developed from a variety of crystalline rocks of the Piedmont province in Fairfax County, Va., have been obtained by using a combination of Shelby tubes, Denison sampler, and modified diamond core drilling. The core study correlated variations in chemistry, mineralogy, and texture with engineering properties...
Studies of geology and hydrology in the Basin and Range Province, Southwestern United States, for isolation of high-level radioactive waste - Basis of characterization and evaluation
M. S. Bedinger, K. A. Sargent, William H. Langer, Frank B. Sherman, J.E. Reed, B. T. Brady
1989, Professional Paper 1370-A
The geologic and hydrologic factors in selected regions of the Basin and Range province were examined to identify prospective areas for further study that may provide isolation of high-level radioactive waste from the accessible environment. The six regions selected for study were characterized with respect to the following guidelines: (1)...
Geochemistry of the Floridan aquifer system in Florida and in parts of Georgia, South Carolina, and Alabama
Craig L. Sprinkle
1989, Professional Paper 1403-I
The chemical quality of the ground water in the Floridan aquifer system is determined primarily by mineral-water interaction. However, some changes in water quality have been imposed by development, particularly near coastal pumping centers. A total of 601 chemical analyses, all from different wells, most completed in the upper part...
Precipitation, streamflow, and base flow in west-central Texas, December 1974 through March 1977
Eve L. Kuniansky
1989, Water-Resources Investigations Report 88-4218
Precipitation, streamflow, and base-flow data were analyzed for December 1974 through March 1977 as a part of the Edwards-Trinity Regional Aquifer-System Analysis in west-central Texas. The period of record analyzed corresponds to the calibrating period of a digital groundwater-flow model of the aquifer system currently (1988) being developed. Precipitation at...
FASPUE English version : analytic petroleum resource appraisal microcomputer programs for play analysis using a reservoir-engineering model
Robert A. Crovelli, Richard H. Balay
1989, Open-File Report 89-1-A
The influence of north Pacific atmospheric circulation on streamflow in the west
Daniel R. Cayan, David H. Peterson
1989, Book chapter, Aspects of climate variability in the Pacific and the western Americas
The annual cycle and nonseasonal variability of streamflow over western North America and Hawaii is studied in terms of atmospheric forcing elements. This study uses several decades of monthly average streamflow beginning as early as the late 1800's over a network of 38 stations. In addition to a strong...
Modeling coastal Louisiana's vulnerability to oil and toxic chemical spills
Floyd O. Stayner, James B. Johnston, James D. Scurry
1989, Conference Paper, Visual solutions right at your fingertips : NCGA mapping and geographic information systems '89 : Conference proceedings
No abstract available....
Modeling bottomland forest and wildlife habitat changes in Louisiana's Atchafalaya Basin
Michael S. Brody, William H. Conner, L. Pearlstine, Wiley M. Kitchens
1989, Conference Paper, Freshwater wetlands and wildlife: Proceedings of a symposium
No abstract available....
Timing and mechanisms for the deposition of the glaciomarine mud in and around the Gulf of Maine: A discussion of alternative models
Robert N. Oldale
1989, Book chapter
Glaciomarine mud in the Gulf of Maine, characterized by rhythmic seismic layers that mimic the morphology of the underlying surface, is composed of subequal amounts of silt and clay, variable amounts of sand, and sparse gravel-sized clasts. The mud is Wisconsinan in age and was deposited during the retreat of...
Boron isotope evidence for the involvement of non-marine evaporites in the origin of the Broken Hill ore deposits
J. F. Slack, M. R. Palmer, B.P.J. Stevens
1989, Nature (342) 913-916
Identifying the palaeogeographic setting and mode of origin of stratabound ore deposits can be difficult in high-grade metamorphic terranes, where the effects of metamorphism may obscure the nature of the protoliths. Here we report boron isotope data for tourmalines from the early Proterozoic Broken Hill block, in Australia, which hosts...
Prodigious submarine landslides on the Hawaiian Ridge
James G. Moore, David A. Clague, R. T. Holcomb, Peter W. Lipman, William R. Normark, Michael E. Torresan
1989, Journal of Geophysical Research B: Solid Earth (94) 17465-17484
The extensive area covered by major submarine mass wasting deposits on or near the Hawaiian Ridge has been delimited by systematic mapping of the Hawaiian exclusive economic zone using the side‐looking sonar system GLORIA. These surveys show that slumps and debris avalanche deposits are exposed over about 100,000 km2 of the...
Two new species of South American Centrolenella (Anura: Centrolenidae) related to C. mariae
Glenn Flores, Roy W. McDiarmid
1989, Herpetologica (45) 401-411
Two new Centrolenella are described, C. azulae from the Cordillera Azul of Perú, and C. puyoensis from the Amazonian slopes of the Ecuadorian Andes. Centrolenella azulae is distinguished by its moderately large size, the presence of vomerine teeth, a snout truncate in dorsal view and slightly protruding in profile,...
History of the Federal Inter-Agency Sedimentation Project
J. V. Skinner
1989, Conference Paper, Proceedings of the Sediment Transport Modeling International Symposium
No abstract available....
Comparison of aquifer storage coefficients computed using anisotropic and isotropic analytical models
Vicente Quinones-Aponte
1989, Conference Paper, Proceedings of the Recent Advances in Ground-Water Hydrology, American Institute of Hydrology
Model B sediment concentration gage: Factors influencing its readings and a formula for correcting its errors in measurement and analysis of sediment load in streams
J. V. Skinner
1989, Report JJ
No abstract available....
Crustal structure of the Chugach Mountains, southern Alaska: A study of peg‐leg multiples from a low‐velocity zone
Ernst Flueh, Walter D. Mooney, Gary S. Fuis, Elizabeth L. Ambos
1989, Journal of Geophysical Research B: Solid Earth (94) 16023-16035
A seismic refraction profile recorded along the geologic strike of the Chugach Mountains in southern Alaska shows three upper crustal high‐velocity layers (6.9, 7.2, and 7.6 km/s) and a unique pattern of strongly focussed echelon arrivals to a distance of 225 km. The group velocity of the...
Dynamic pore-pressure fluctuations in rapidly shearing granular materials
Richard M. Iverson, Richard G. LaHusen
1989, Science (246) 796-799
Results from two types of experiments show that intergranular pore pressures fluctuated dynamically during rapid, steady shear deformation of water-saturated granular materials. During some fluctuations, the pore water locally supported all normal and shear stresses, while grain-contact stresses transiently fell to zero. Fluctuations also propagated outward from the shear zone;...
Planktonic benthonic foraminiferal ratios: Modern patterns and Tertiary applicability
Thomas G. Gibson
1989, Marine Micropaleontology (15) 29-52
The abundance of planktonic specimens in foraminiferal assemblages was determined in numerous bottom samples from inner neritic to deep oceanic depths along the Atlantic margin of the northeastern United States. The results augment previous studies in other areas that have...
The correct citation and spelling of Ptiliogonys and type locality of Ptiliogonys cinereus
M. Ralph Browning
1989, The Auk (106) 743-746
William Swainson published descriptions and illustrations of many new forms of New World birds. In some of his earlier papers, Swainson cited his own works (of which only some parts have been published) as well as some manuscripts that were never published (see McMillan 1971). Swainson also referred to works...
Riparian ecosystem creation and restoration: a literature summary
Karen M. Manci
1989, Report
Riparian ecosystems generally compose a minor proportion of surrounding areas, but typically are more structurally diverse and more productive in plant and animal biomass than adjacent upland areas. Riparian areas supply food, cover, and water (especially important in the arid West) for a large diversity of animals, and serve as migration routes and forest...
Assessing the relationship between Section 404 and wetland losses: a feasibility study
Douglas N. Gladwin, James E. Roelle, Duane A. Asherin
1989, Report
The primary objective of the Clean Water Act of 1977 (33 U.S.C. 1251) is to restore and maintain the physical, chemical, and biological integrity of the Nation's waters. Section 404 of the Act regulates the discharge of dredged or fill materials into wetlands and represents the primary Federal authority...
Physical habitat simulation system reference manual: version II
Robert T. Milhous, Marlys A. Updike, Diane M. Schneider
1989, Report, Biological Report
There are four major components of a stream system that determine the productivity of the fishery (Karr and Dudley 1978). These are: (1) flow regime, (2) physical habitat structure (channel form, substrate distribution, and riparian vegetation), (3) water quality (including temperature), and (4) energy inputs from the watershed (sediments,...
