Preliminary map showing the thickness of glacial deposits in Ohio
D. R. Soller
1986, Miscellaneous Field Studies Map 1862
This map was compiled as part of a U.S. Geological Survey project to portray the character and thickness of glacial deposits east of the Rocky Mountains. It is a preliminary map, compiled at a scale of 1:250,000 from sources of differing type and quality (fig. I, table 1). County drift-thickness...
Geologic map of the Demarcation Point, Mt. Michelson, Flaxman Island, and Barter Island quadrangles, northeastern Alaska
J. W. Bader (compiler), K. J. Bird
1986, IMAP 1791
Occurrence and availability of ground water in the Athens region, northeastern Georgia
D. B. Radtke, C.W. Cressler, H.A. Perlman, H.E. Blanchard Jr., K.W. McFadden, Rebekah Brooks
1986, Water-Resources Investigations Report 86-4075
A study was conducted to assess the occurrence and availability of groundwater in the crystalline rocks of the Piedmont area in northeastern Georgia and to determine whether groundwater is a viable alternative or supplemental source for industrial, public and private supplies. The area is underlain by a variety of metamorphic...
Determination of geohydrologic framework and extent of d- water contamination using surface geophysical techniques at Picatinny Arsenal, New Jersey
Pierre Lacombe
1986, Water-Resources Investigations Report 86-4051
Seismic-refraction, electric-resistivity sounding, and electromagnetic conductivity techniques were used to determine the geohydrologic framework and extent of groundwater contamination at Picatinny Arsenal in northern New Jersey. The area studied encompasses about 4 sq mi at the southern end of the Arsenal. The bedrock surface beneath the glacial sediments was delineated...
Water resources data for Virginia water year 1985
B.J. Prugh, F.J. Easton, D. D. Lynch
1986, Water Data Report VA-85-1
No abstract available. ...
Abstracts of the symposium on the Geology and Mineral Deposits of the Tonopah 1 degree x 2 degrees quadrangle, Nevada : presented at Reno, Nevada, September 26, 1986
Donald Harvey Whitebread (compiler)
1986, Open-File Report 86-467
Preliminary geologic interpretation of the aeromagnetic map of Afognak and Shuyak Islands, Alaska
J. E. Case, M. A. Fisher, G. W. Moore, S.W. Nelson
1986, Miscellaneous Field Studies Map 1718
Water resources of Weston County, Wyoming
M.E. Lowry, W. J. Head, J.G. Rankl, J.F. Busby
1986, Water-Resources Investigations Report 84-4079
Surface water is scarce in Weston County, Wyoming. Groundwater has been developed from rocks ranging in age from Mississippian to Holocene. Adequate supplies for domestic or stock use can be developed from wells generally less than 1,000 ft deep, except in the area underlain by a thick sequence of predominantly...
The 1886 Charleston, South Carolina, earthquake — A 1986 perspective
Otto W. Nuttli, G. A. Bollinger, Robert B. Herrmann
1986, Circular 985
No abstract available....
Reconnaissance of ground-water resources in the North Fork Gunnison River basin, southwestern Colorado
D. J. Ackerman, Tom Brooks
1986, Water-Resources Investigations Report 85-4230
Aquifers of large areal extent in the North Fork Gunnison River basin are found in the alluvium and bedrock. Alluvial aquifers yielded water with dissolved solids concentrations ranging from 43 to 2,300 mg/L. Dissolved solids concentrations of water samples from the Mesaverde Formation of Late Cretaceous age and the Dakota...
Geohydrology and potential for artificial recharge in the western part of the U.S. Marine Corps Base, Twentynine Palms, California, 1982-83
J. P. Akers
1986, Water-Resources Investigations Report 84-4119
A recent gravity survey indicates that sedimentary deposits in the Deadman Lake area of the Twentynine Palms Marine Corps Base, California, are as much as 10,500 feet thick. These deposits fill an ancient valley in the bedrock complex. This valley is alined east-west in the Surprise Spring area and north-south...
Principles of logic and the use of digital geographic information systems
Charles Joseph Robinove
1986, Circular 977
Digital geographic information systems allow many different types of data to be spatially and statistically analyzed. Logical operations can be performed on individual or multiple data planes by algorithms that can be implemented in computer systems. Users and creators of the systems should fully understand these operations. This paper describes...
Ground water in the Long Meadow area and its relation with that in the General Sherman Tree area, Sequoia National Park, California
J. P. Akers
1986, Water-Resources Investigations Report 85-4178
Westward movement of ground water from the Long Meadow area of Sequoia National Park, California, to the General Sherman Tree area is prevented by an eastward hydraulic gradient and low fracture permeability of a granodiorite ridge separating the two areas. Clay beds present in the alluvium in the Long Meadow...
Geology and mineral-resource potential of Seven Roadless Areas in the Apalachicola National Forest, Liberty County, Florida
Sam H. Patterson, Cornelia Clermont Cameron, Walter Schmidt
1986, Bulletin 1587
Maps and interpretation of geochemical anomalies, Chuckwalla Mountains Wilderness Study Area, Riverside County, California
K. C. Watts
1986, Miscellaneous Field Studies Map 1795
In March 1982, as part of the mineral resource investigations of the area, the U.S. Geological Survey conducted a reconnaissance geochemical survey of the Chuckwalla Mountains Wilderness Study Area (WSA), Riverside County, California. The survey involved collecting 196 heavy-mineral (panned) concentrates from stream sediment (the basis for these maps and...
Sediment-data sources and estimated annual suspended-sediment loads of rivers and streams in Colorado
J. G. Elliott, K. L. DeFeyter
1986, Water-Resources Investigations Report 86-4344
Sources of sediment data collected by several government agencies through water year 1984 are summarized for Colorado. The U.S. Geological Survey has collected suspended-sediment data at 243 sites; these data are stored in the U.S. Geological Survey 's water data storage and retrieval system. The U.S. Forest Service has collected...
Investigation of possible effects of surface coal mining on hydrology and landscape stability in part of the Powder River structural basin, northeastern Wyoming
R. M. Bloyd, P. B. Daddow, P.R. Jordon, H. W. Lowham
1986, Water-Resources Investigations Report 86-4329
The effects of surface coal mining on the surface- and groundwater systems in a 5,400 sq mi area in the Powder River Basin, Wyoming, that includes 20 major coal mines were evaluated using three approaches: A surface water model, a landscape-stability analysis, and a groundwater model. A surface water model...
Geologic map of the Medicine Mountain Quadrangle, Pennington County, South Dakota
J.C. Ratte
1986, IMAP 1654
Analytical results and sample locality map of stream-sediment, heavy-mineral-concentrate, soil, and rock samples from the Pecos Wilderness, Santa Fe, San Miguel, Mora, Rio Arriba, and Taos Counties, New Mexico
M. S. Erickson, S. J. Sutley, R. H. Moench
1986, Open-File Report 86-171
No abstract available....
Mineral resources of the Pit River Canyon Wilderness Study Area, Lassen County, California
Maureen G. Sherlock, Harry W. Campbell
1986, Bulletin 1706-E
Water resources of the Blackstone River Basin, Massachusetts
Eugene H. Walker, Bruce E. Krejmas
1986, Hydrologic Atlas 682
Quaternary geologic map of the Florida Keys 4° x 6° quadrangle, United States
Michael S. Knapp, David L. Weide, Gerald Martin Richmond, David S. Fullerton
Gerald M. Richmond, editor(s)
1986, IMAP 1420(NG-17)
This map is part of the Quaternary Geologic Atlas of the United States (I-1420). It was first published as a printed edition in 1986. The geologic data have now been captured digitally and are presented here along with images of the printed map sheet and component parts as PDF files.The...
Hydrologic data for urban studies in the Austin metropolitan area, Texas, 1984
J.D. Gordon, D.L. Pate, M.E. Dorsey
1986, Open-File Report 85-676
Hydrologic investigations of urban watersheds in Texas were begun by the U.S. Geological Survey in 1954. Studies are now in progress in Austin, and Houston. Studies have been completed in the Dallas, Fort Worth, and San Antonio areas. The Geological Survey, in cooperation with the Texas Department of Water Reources, began...
Geologic map of the Kappes Canyon quadrangle, Sweetwater County, Wyoming
Mark A. Kirschbaum
1986, Geologic Quadrangle 1607
Availability of selected meteorological data in computer-based files of the U.S. Geological Survey, Montana, North Dakota, South Dakota, and Wyoming
Brenda L. Link, L. E. Cary
1986, Open-File Report 85-693
Meteorological data were located, acquired, and stored from selected stations in Montana and North Dakota coal regions and adjacent areas including South Dakota and Wyoming. Data that were acquired have potential use in small watershed modeling studies. Emphasis was placed on acquiring data that was collected during the period 1970...
