Mineral resources and resource potential map of the Pyramid Peak Roadless Area, Riverside County, California
J.P. Calzia
1988, Miscellaneous Field Studies Map 1999
The Pyramid Peak Roadless Area is underlain by mid-Cretaceous plutonic rocks (granite, granodiorite, and tonalite) that intrude metasedimentary rocks of the Desert Divide Group. The granodiorite grades eastward into strongly deformed mylonitic rocks mapped as part of the Santa Rosa mylonite zone. Metasedimentary rocks, orthogneiss, and anatexites of the Palm...
Interpretive aeromagnetic map of the Eagle Mountains Wilderness Study Area, Riverside County, California
V. J. S. Grauch
1988, Miscellaneous Field Studies Map 1818
This report describes the interpretation of aeromagnetic surveys of the Eagle Mountains area, concentrating on the Eagle Mountains Wilderness Study Area (WSA). The interpretations are based on correlations with mapped surface geology by R. E. Powell, reproduced here from Powell and others (1984), as a base for the aeromagnetic data. The...
Mineral resource potential map of the Pecos Wilderness, Santa Fe, San Miguel, Mora, Rio Arriba, and Taos Counties, New Mexico
R. H. Moench, M. E. Lane
1988, Miscellaneous Field Studies Map 1921-A
The Pecos Wilderness covers approximately 348 sq mi in the Santa Fe and Carson National Forests, north-central New Mexico. The area investigated includes the wilderness and approximately 150 sq mi of adjacent territory. The additional area covers several RARE II Road less Areas that were classified by the U.S. Forest...
Studies of the early Mesozoic basins of the eastern United States
A.J. Froelich, G.R. Robinson Jr.
1988, Bulletin 1776
The papers collected in this volume are extended versions selected from material given as oral and poster presentations at a workshop called "Geology of the Early Mesozoic Basins of Eastern North America,' held at the National Center of the US Geological Survey, May 11-14, 1987. The section titles are: 1)...
Bathymetric map of the Bowers Basin and Aleutian Basin east of the U.S.-U.S.S.R. 1867 Convention Line, Bering Sea
R. K. Hall, Herman A. Karl, P.R. Carlson, A. K. Cooper, J.V. Gardner, R. E. Hunter, M. S. Marlow, A.J. Stevenson
1988, Open-File Report 89-548
No abstract available....
Simulation of ground-water flow in aquifers along the Susquehanna River in Columbia County, Pennsylvania
J.H. Williams, G.E. Senko
1988, Water-Resources Investigations Report 85-4185
A numerical model of groundwater flow was developed for a 10.3 sq mi area along the Susquehanna River in Columbia County, east central Pennsylvania. Groundwater in the model area primarily is in secondary openings in the carbonate--and clastic-rock aquifers and primary openings in the glacial-outwash aquifer that discontinuously overlies bedrock....
Geohydrology, water quality, and preliminary simulations of ground-water flow of the alluvial aquifer in the upper Black Squirrel Creek basin, El Paso County, Colorado
David R. Buckles, Kenneth R. Watts
1988, Water-Resources Investigations Report 88-4017
The upper Black Squirrel Creek basin in eastern El Paso County, Colorado, is underlain by an alluvial aquifer and four bedrock aquifers. The climate of the area is semiarid, and streamflow is irregular. The alluvial aquifer has supplied water to wells since the late 1800's when ranchers first pumped water...
Effect of water quality on survival of Lahontan cutthroat trout eggs in the Truckee River, west-central Nevada and eastern California
Ray J. Hoffman, Gary G. Scoppettone
1988, Water Supply Paper 2319
The U.S. Fish and Wildlife Service has an ongoing program to assess the feasibility of reestablishing naturally spawning populations of Lahontan cutthroat trout in the Truckee River-Pyramid Lake system in Nevada. Previous in situ egg-survival studies have documented a 100 percent mortality of cutthroat trout eggs artificially planted in potential...
Geohydrology of the Bethpage-Hicksville-Levittown area, Long Island, New York
D. A. Smolensky, S. M. Feldman
1988, Water-Resources Investigations Report 88-4135
A study of ground-water levels and flow in east-central Nassau County, N.Y. , began in October 1985. The 11.4 sqare-mile area encompasses parts of Bethpage, Hicksville, Levittown, Plainview, Plainedge, and Farmingdale. Approximately 1,200 ft of unconsolidated Cretaceous deposits and 50 to 100 ft of Pleistocene deposits overlie bedrock throughout the...
Simulation of flow in the Edwards Aquifer, San Antonio region, Texas, and refinement of storage and flow concepts
Robert W. Maclay, Larry F. Land
1988, Water Supply Paper 2336-A
The Edwards aquifer is a complexly faulted, carbonate aquifer lying within the Balcones fault zone of south-central Texas. The aquifer consists of thin- to massive-bedded limestone and dolomite, most of which is in the form of mudstones and wackestones. Well-developed secondary porosity has formed in association with former erosional surfaces...
Hydrogeology, aquifer characteristics, and ground-water flow of the surficial aquifer system, Broward County, Florida
J.E. Fish
1988, Water-Resources Investigations Report 87-4034
The surficial aquifer system, in which an unconfined groundwater flow system exists, comprises the sediments from land surface to the intermediate confining unit (formerly called the Floridan aquiclude) in Broward County, Florida. These sediments have hydraulic conductivities that range more than seven orders of magnitude from about 0.001 ft/d to...
Sediment loads, discharges, and yields in the East Branch Mahoning Creek basin, Clearfield and Jefferson Counties, Pennsylvania, June 1979 through September 1981
C. A. Loper, K. L. Wetzel
1988, Water-Resources Investigations Report 85-4213
Rainfall, streamflow, and sediment discharge data were collected from the East Branch Mahoning Creek basin from June 1979 through September 1981 to evaluate sediment discharges from an area in which erosion and sediment controls were being used on surface mined areas. Sediment yields from the basin averaged 144 tons/sq mi/year....
Distribution and variability of precipitation chemistry in the conterminous United States, January through December 1983
J. F. Rinella, T. L. Miller
1988, Open-File Report 87-558
Analysis of atmospheric precipitation samples, collected during the 1983 calendar year from 109 National Trends Network sites in the United States, are presented in this report. The sites were grouped into six geographical regions based on the chemical composition of the samples. Precipitation chemistry in these regions was influenced by...
Regionalization of mean annual suspended-sediment loads in streams, central, northwestern, and southwestern Colorado
J. G. Elliott
1988, Water-Resources Investigations Report 87-4193
Regression analysis was used to develop models for estimating mean annual suspended-sediment loads for streams in Colorado. Mean annual suspended-sediment loads at 81 selected streamflow-gaging stations in the central, northwestern, and southwestern regions of Colorado were expressed as functions of geomorphic and hydrologic variables. A multiple-regression model that included mean...
U.S. Geological Survey ground-water studies in Nevada
M. D. Dettinger, A. S. Van Denburgh
1988, Open-File Report 88-119
Groundwater is an important natural resource in Nevada. In 1985, groundwater provided 24% of the total water withdrawn, and supplied about 40% of the State 's population. Public supply and self-supplied domestic use accounted for about 12% of the groundwater withdrawn, and self-supplied industrial and mining use was about 3%....
Geochemistry of mineralized quartzite beds in the Spokane Formation (Belt Supergroup), Rogers Pass area, Lewis and Clark County, Montana
Jon J. Connor, James M. McNeal
1988, Bulletin 1762
No abstract available....
Reconnaissance investigation of water-quality, bottom sediment, and biota associated with irrigation drainage in the Lower Rio Grande Valley and Laguna Atascosa National Wildlife Refuge, Texas, 1986-87
Frank C. Wells, Gerry A. Jackson, William J. Rogers
1988, Water-Resources Investigations Report 87-4277
In 1986, the Department of the Interior conducted reconnaissance investigations in nine areas of the western conterminous United States to determine whether irrigation drainage has caused or has the potential to cause harmful effects to human health, fish, and wildlife, or may adversely affect the suitability of water for beneficial...
A digital simulation of the glacial-aquifer system in Sanborn and parts of Beadle, Miner, Hanson, Davison, and Jerauld counties, South Dakota
P.J. Emmons
1988, Water-Resources Investigations Report 87-4082
The drought in South Dakota from 1974-76 and the near drought conditions in 1980-81 have resulted in increased demands on the groundwater resources within many of the irrigated areas of the James River basin in eastern South Dakota. These increases in demand for irrigation water from the glacial aquifer system,...
Structure contour map of the greater Green River basin, Wyoming, Colorado, and Utah
M.R. Lickus, B. E. Law
1988, Miscellaneous Field Studies Map 2031
The Greater Green River basin of Wyoming, Colorado, and Utah contains five basins and associated major uplifts (fig. 1). Published structure maps of the region have commonly used the top of the Lower Cretaceous Dakota Sandstone as a structural datum (Petroleum Ownership Map Company (POMCO), 1984; Rocky Mountain Association of...
Reinterpreted geologic map and fossil data, Charley River quadrangle, east-central Alaska
J. H. Dover, R. T. Miyaoka
1988, Miscellaneous Field Studies Map 2004
No abstract available....
Estimated Use of Water in the United States in 1985
Wayne B. Solley, Charles F. Merk, Robert R. Pierce
1988, Circular 1004
Water withdrawals in the United States during 1985 were estimated to average 399,000 million gallons per day (Mgal/d) of freshwater and saline water for offstream uses--10 percent less than the 1980 estimate. Average per-capita use for all offstream uses was 1,650 gallons per day (gal/d) of freshwater and saline water...
Relation of trihalomethane-formation potential to water-quality and physical characteristics of small water-supply lakes, eastern Kansas
L. M. Pope, J. A. Arruda, C. H. Fromm
1988, Water-Resources Investigations Report 88-4161
The formation of carcinogenic trihalomethanes during the treatment of public surface water supplies has become a potentially serious problem. The U. S. Geological Survey, in cooperation with the Kansas Department of Health and Environment , investigated the potential for trihalomethane formation in water from 15 small, public water supply lakes...
Catalog of heat-flow and other pertinent data for the eastern United States and selected adjacent areas
Lucy McCartan, Rebecca J. Architzel
1988, Open-File Report 88-681
Natural aggregates of the conterminous United States
William H. Langer
1988, Bulletin 1594
Crushed stone and sand and gravel are the two main sources of natural aggregates. These materials are commonly used construction materials and frequently can be interchanged with one another. They are widely used throughout the United States, with every State except two producing crushed stone. Together they amount to about...
Hydrogeology and predevelopment flow in the Texas Gulf Coast aquifer systems
Paul D. Ryder
1988, Water-Resources Investigations Report 87-4248
A multilayered ground-water flow system exists in the Coastal Plain sediments of Texas. The Tertiary and Quaternary clastic deposits have an area! extent of 128,000 square miles onshore and in the Gulf of Mexico. Two distinct aquifer systems are recognized for the sediments, which range in thickness from a few...
