National Water-Quality Assessment Program; summary of pesticide data collected on East Fork Double Bayou, near Anahuac, Texas, March to September 1994
Water Resources Division, U.S. Geological Survey
1995, Fact Sheet 140-95
The Trinity River Basin study-unit assessment began in October 1991, with 2 years dedicated to planning, analyzing existing information, and designing data-collection networks, surveys, and studies. Then, a 3-year intensive data-collection program was initiated. The assessment followed guidelines provided by the National Water-Quality Assessment (NAWQA) Program National Synthesis team and...
Age and diagenesis of the upper Floridan Aquifer and the intermediate aquifer system in southwestern Florida
Lucy McCartan, S.D. Weedman, G.L. Wingard, Lucy E. Edwards, P. J. Sugarman, M.D. Feigenson, M. L. Buursink, J.C. Libarkin
1995, Bulletin 2122
No abstract available....
Preliminary analysis of down-core biotic assemblages Bob Allen Keys, Everglades National Park, Florida Bay
G. L. Brewster-Wingard, S. E. Ishman, Thomas M. Cronin, Lucy E. Edwards, Debra A. Willard, R. B. Halley
1995, Open-File Report 95-628
IntroductionA series of short piston cores (< 2m) were taken from eleven stations in Florida Bay in May, 1994 by researchers from the U.S. Geological Survey (St. Petersburg, FL., Woods Hole, MA., and Denver CO.) in cooperation with South Florida Water Management District, and the Everglades National Park, and the...
Cretaceous and Paleogene calcareous nannofossil biostratigraphy of New Jersey
Jean Self-Trail, Laurel M. Bybell
1995, Book chapter, Contributions to the paleontology of New Jersey
No abstract available....
Porphyry copper and other intrusion-related mineralization in Mexico
Mark D. Barton, John-Mark G. Staude, Lukas Zurcher, Peter K. M. Megaw
1995, Book chapter, Porphyry copper deposits of the American Cordillera
Intrusion-related copper-bearing ore deposits in Mexico span a wide-range of deposit types and geological settings and formed from the mid-Mesozoic through the Holocene. These deposits include world-class copper porphyry and skarn deposits as well as a continuum of similar skarn, porphyry, vein, and replacement deposits that contain variable quantities of...
Sources of the Early Cretaceous plutons in the Turtle and West Riverside Mountains, California
C. M. Allen, J. L. Wooden, Keith A. Howard, D.A. Foster, R. M. Tosdal
1995, Journal of Petrology (36) 1675-1700
Ages and initial isotopic ratios of Early Cretaceous (˜100 Ma) plutons of the Cordilleran Interior in the southern Turtle and West Riverside mountains distinguish them from Late Cretaceous plutons in surrounding ranges in the eastern Mojave Desert. Furthermore, the studied plutons have isotopic and geochemical characteristics more similar to plutons...
Geometry of sandy deposits at the distal edge of the Mississippi Fan, Gulf of Mexico
D.C. Twichell, W. C. Schwab, Neil H. Kenyon
1995, Book chapter, Atlas of Deep Water Environments
Sidescan sonar provides a map of the seafloor that has greatly improved the understanding of depositional processes on modern deep-sea fans (e.g. Mutti and Normark 1991). Here, we present a sidescan-sonar mosaic from the eastern Gulf of Mexico that images the distal reaches of a channel on the Mississippi Fan...
Estimates of self-supplied commercial ground-water use in rural east-central Minnesota
L. C. Trotta
1995, Minnesota Ground Water Association Newsletter (13) 8
No abstract available....
Alteration of basalt hyaloclastite at the off-axis Sea Cliff hydrothermal field, Gorda Ridge
R.A. Zierenberg, Peter Schiffmant, I. Jonasson, R. M. Tosdal, W. Pickthorn, J. McClain
1995, Chemical Geology (126) 77-99
The Sea Cliff hydrothermal field on the northern segment of the Gorda Ridge is situated along a rift-bounding normal fault about 2.6 km east of the neovolcanic zone and approximately 300 m above the spreading axis. The structural setting of this hydrothermal field differs from that of most other active...
Strain accumulation across the central Nevada seismic zone, 1973–1994
James C. Savage, Michael Lisowski, W.K. Gross
1995, Journal of Geophysical Research B: Solid Earth (100) 20257-20269
Five trilateration networks extending for 280 km along the central Nevada seismic zone (1915 Pleasant Valley, M = 7.3; 1954 Dixie Valley, M = 6.8; 1954 Stillwater, M = 6.8; 1954 Rainbow Mountain, M = 6.6; 1954 Fairview Peak, M = 7.1; and 1932 Cedar Mountain, M = 7.2) have been surveyed 6 times since 1973 to determine deformation along the zone....
Stratigraphic notes, 1994: Three short papers propose changes in stratigraphic nomenclature in Virginia, Kentucky, and Alaska
Jack B. Epstein, Randall C. Orndorff, Eugene K. Rader, Charles L. Rice, David A. Brew, Arthur B. Ford, Glen R. Himmelberg, James L. Drinkwater
1995, Bulletin 2135
No abstract available....
Physical characteristics of stream subbasins in the upper Minnesota River basin, west-central Minnesota, northeastern South Dakota and southeastern North Dakota
Chris Sanocki
1995, Open-File Report 95-162
Data that describe the physical characteristics of stream subbasins upstream from selected points on streams in the Upper Minnesota River Basin, located in west-central Minnesota, north-eastern South Dakota, and southeastern North Dakota, are presented in this report. The physical characteristics are the drainage area of the subbasin, the percentage area...
Hydrogeology and simulated effects of ground-water withdrawals for citrus irrigation, Hardee and De Soto counties, Florida
P. A. Metz
1995, Water-Resources Investigations Report 93-4158
The hydrogeology of Hardee and De Soto Counties in west-central Florida was evaluated, and a ground-water flow model was developed to simulate the effects of expected increases in ground-water withdrawals for citrus irrigation on the potentiometric surfaces of the intermediate aquifer system and the Upper Floridan aquifer. In 1988, total...
Geohydrology and simulation of ground-water flow in the aquifer system near Calvert City, Kentucky
J.J. Starn, L. D. Arihood, M.F. Rose
1995, Water-Resources Investigations Report 94-4239
The U.S. Geological Survey, in cooperation with the Kentucky Natural Resources and Environmental Protection Cabinet, constructed a two-dimensional, steady-state ground-water-flow model to estimate hydraulic properties, contributing areas to discharge boundaries, and the average linear velocity at selected locations in an aquifer system near Calvert City, Ky. Nonlinear regression was used...
Relation of fracture orientation to linear terrain features, anisotropic transmissivity, and seepage to streams in the karst Prairie du Chien Group, southeastern Minnesota
J. F. Ruhl
1995, Water-Resources Investigations Report 94-4146
Ground-water flow in the karst-terrane aquifers of southeastern Minnesota is not well defined. Variable fracture patterns in the bedrock affect permeability. Techniques to predict the effects of fracture patterns on ground-water flow in the karst-terrane aquifers of southeastern Minnesota are unavailable. The use of such techniques may be useful to...
Hydrogeology and ground-water flow of the drift and Platteville aquifer system, St. Louis Park, Minnesota
R. J. Lindgren
1995, Water-Resources Investigations Report 94-4204
Three aquifers and two confining units have been delineated within the drift underlying the area near the site of a former coal-tar distillation and wood-preserving plant in St. Louis Park, Minnesota. The hydrogeologic units of the drift, in descending order, are the upper drift aquifer, the upper drift confining unit,...
Structure of the basins and ranges, Southwest New Mexico, an interpretation of seismic velocity sections
Douglas P. Klein, Gerda A. Abrams, Patricia L. Hill
1995, Open-File Report 95-506
This report presents a geologic appraisal of seismic velocity sections that profile a total of 790 km in southwest New Mexico west of Las Cruces and south of Lordsburg and Deming. The present work outlines the contribution of these velocity sections to estimating areas favorable for mineral resource occurrences. Seismic...
Climate response among growth increments of fish and trees
Richard P. Guyette, Charles F. Rabeni
1995, Oecologia (104) 272-279
Significant correlations were found among the annual growth increments of stream fish, trees, and climate variables in the Ozark region of the United States. The variation in annual growth increments of rock bass (Ambloplites rupestris) from the Jacks Fork River was significantly correlated over 22 years with the ring width...
Preliminary geologic map of the Little Piute Mountains, San Bernardino County, California
Keith A. Howard, Michael L. Dennis, Karl E. Karlstrom, Geoffrey A. Phelps
1995, Open-File Report 95-598
Introduction The Little Piute Mountains in the eastern Mojave Desert expose a series of folds and thrust faults involving metamorphosed Paleozoic strata (Miller and others, 1982; Stone and others, 1983). Detailed mapping of these structures was undertaken to help elucidate regional Mesozoic structural evolution. Earlier geologic maps were prepared by...
Geologic map of the Hayward fault zone, Contra Costa, Alameda, and Santa Clara counties, California: A digital database
R. W. Graymer, D. L. Jones, E. E. Brabb
1995, Open-File Report 95-597
The Hayward is one of three major fault zones of the San Andreas system that have produced large historic earthquakes in the San Francisco Bay Area (the others being the San Andreas and Calaveras). Severe earthquakes were generated by this fault zone in 1836 and in 1868, and several large...
Water-quality assessment of the Rio Grande Valley study unit, Colorado, New Mexico, and Texas -- Analysis of selected nutrient, suspended-sediment, and pesticide data
S. K. Anderholm, M.J. Radell, S. F. Richey
1995, Water-Resources Investigations Report 94-4061
This report contains a summary of data compiled from sources throughout the Rio Grande Valley study unit of the National Water-Quality Assessment program. Information presented includes the sources and types of water-quality data available, the utility of water-quality data for statistical analysis, and a description of recent water-quality conditions and...
Water-quality assessment of the upper Snake River Basin, Idaho and western Wyoming — Summary of aquatic biological data for surface water through 1992
Terry R. Maret
1995, Water-Resources Investigations Report 95-4006
The 35,800-square-mile upper Snake River Basin in eastern Idaho and western Wyoming was one of 20 areas selected for water-quality study under the National Water-Quality Assessment Program. As part of the initial phase of the study, data were compiled to describe the current (1992) and historical aquatic biological conditions of...
Hydrogeology and analysis of ground-water withdrawal in the Mendenhall-D'Lo area, Simpson County, Mississippi
E. W. Strom, W. T. Oakley
1995, Water-Resources Investigations Report 95-4013
The cities of Mendenhall and D'Lo, located in Simpson County, rely on ground water for their public supply and industrial needs. Most of the ground water comes from an aquifer of Miocene age. A study began in 1991 to describe the hydrogeology, analyze effects of ground-water withdrawal by making a...
Geologic map of the Littlefield Quadrangle, northern Mohave County, Arizona
George H. Billingsley
1995, Open-File Report 95-559
The Littlefield 7.5' quadrangle lies in the extreme northwestern corner of Mohave County, Arizona (fig. 1). Elevations range from about 536.5 m (1,760 ft) at the Virgin River (south-central edge of quadrangle) to 975 m (3,200 ft) in the Beaver Dam Mountains (northeastern corner of quadrangle). Interstate Arizona Highway 15...
Maps showing gas-hydrate distribution off the east coast of the United States
William P. Dillon, Kristen L. Fehlhaber, Dwight F. Coleman, Myung W. Lee, Deborah R. Hutchinson
1995, Miscellaneous Field Studies Map 2268
These maps present the inferred distribution of natural-gas hydrate within the sediments of the eastern United States continental margin (Exclusive Economic Zone) in the offshore region from Georgia to New Jersey (fig. 1). The maps, which were created on the basis of seismic interpretations, represent the first attempt to map...
