Chemical characteristics of water in the surficial aquifer system, Dade County, Florida
W. H. Sonntag
1987, Water-Resources Investigations Report 87-4080
Geohydrologic test drilling was conducted throughout Dade County to describe the chemical characteristics of water from geohydrologic units in the surficial aquifer system. Water quality analysis of samples collected from the test wells completed in central Dade County indicates that the Biscayne aquifer (unit A), the upper clastic unit of...
Effects of land use on ground-water quality in central Florida — Preliminary results: U.S. Geological Survey Toxic Waste — Ground-water Contamination Program
A. T. Rutledge
1987, Water-Resources Investigations Report 86-4163
Groundwater is the principal source of drinking water in central Florida. The most important hydrogeologic unit is the Floridan aquifer system, consisting of fractured limestone and dolomite limestone. Activities of man in areas of recharge to the Floridian aquifer system that may be affecting groundwater quality include: (1) the use...
Summary mineral resource appraisal of the Richfield 1° x 2° quadrangle, west-central Utah
Thomas August Steven, Hal T. Morris
1987, Circular 916
The mineral resource potential of the Richfield 1° x 2° quadrangle, Utah, has been appraised using geological, geophysical, geochemical, and remote-sensing techniques. These studies have led to many publications giving basic data and interpretations; of these, a series of 18 maps at 1:250,000 and 1:500,000 scales summarizing aspects of the...
Assessment of water resources in lead-zinc mined areas in Cherokee County, Kansas, and adjacent areas
Timothy B. Spruill
1987, Water Supply Paper 2268
A study was conducted to evaluate water-resources problems related to abandoned lead and zinc mines in Cherokee County, Kansas, and adjacent areas in Missouri and Oklahoma. Past mining activities have caused changes in the hydrogeology of the area. Lead and zinc mining has caused discontinuities and perforations in the confining...
Ground-water resources of the Bisbee-Naco Area, Cochise County, Arizona
G. R. Littin
1987, Water-Resources Investigations Report 87-4103
The Bisbee-Naco Area is in southeastern Arizona and northeastern Sonora, Mexico. Annual rainfall averages about 17 inches. The basin fill is the principal aquifer and supplies about 95% of all water for domestic purposes. The total groundwater pumped in 1985 was about 6,500 acre/ft. Of that amount, 2,200 acre-ft was...
Recharge of shallow aquifers through two ephemeral-stream channels in northeastern Wyoming, 1982-83
L. W. Lenfest
1987, Water-Resources Investigations Report 85-4311
Quantifying the recharge from ephemeral streams to alluvial and bedrock aquifers will help evaluate the effects of surface mining on alluvial valley floors in Wyoming. Two stream reaches were chosen for study in the Powder River basin. One reach was located along the North Fork Dry Fork Cheyenne River near...
Application of the precipitation-runoff model in the Warrior coal field, Alabama
Robert E. Kidd, C. R. Bossong
1987, Water Supply Paper 2306
A deterministic precipitation-runoff model, the Precipitation-Runoff Modeling System, was applied in two small basins located in the Warrior coal field, Alabama. Each basin has distinct geologic, hydrologic, and land-use characteristics. Bear Creek basin (15.03 square miles) is undisturbed, is underlain almost entirely by consolidated coal-bearing rocks of Pennsylvanian age (Pottsville...
Underground coal mines as sources of water for public supply in northern Upshur County, West Virginia
W.A. Hobba Jr.
1987, Water-Resources Investigations Report 84-4115
Water use for the public supply in northern Upshur County, West Virginia exceeds the 1930 drought flow of its water source, the Buckhannon River. Three underground flooded coal mines near Buckhannon store about 1,170 acre-ft of water. This stored water , plus an additional 500 gal/min of groundwater infiltration into...
Water resources of the Rio Grande de Añasco-lower valley, Puerto Rico
Jose Raul Diaz, Donald G. Jordan
1987, Water-Resources Investigations Report 85-4237
A large amount of water suitable for most uses is available in the lower Rio Grande de Anasco Valley, the major source of which is the Rio Grande de Anasco which contributes about 95% of the surface water inflow to the lower valley. River flow at El Espino exceeds 100...
Quality of water from freshwater aquifers and principal well fields in the Memphis Area, Tennessee
J. V. Brahana, W. S. Parks, M.W. Gaydos
1987, Water-Resources Investigations Report 87-4052
Water from the freshwater aquifers in the Memphis area is suitable for most uses. Freshwater aquifers are the alluvium and fluvial (terrace) deposits of Quaternary age, the Memphis Sand and Fort Pillow Sand of Tertiary age, and the Ripley Formation and McNairy Sand of Cretaceous age. About 180 million gallons/day...
Water resources and potential effects of surface coal mining in the area of the Woodson Preference Right Lease Application, Montana
M. R. Cannon
1987, Water-Resources Investigations Report 87-4027
Federal coal lands of the Woodson Preference Right Lease Application are located in Dawson and Richland Counties, northeastern Montana. A probable mine area, comprised of the lease area and adjacent coal lands, contains about 220 million tons of recoverable lignite coal in the 12-37 ft thick Pust coal bed. A...
Chemical characteristics of water in the surficial aquifer system, Broward County, Florida
Barbara Howie
1987, Water-Resources Investigations Report 86-4330
Water quality data was collected in 1981 and 1982 during the drilling of test holes at 27 sites throughout Broward County, Florida. Determinations were made for the following physical properties and chemical constituents: pH, alkalinity, specific conductance, major ions, selected nutrients and dissolved iron, aluminum, and manganese. Determinations for the...
Hydrology of area 8, eastern Coal Province, West Virginia and Ohio
E.A. Friel, T. A. Ehlke, W.A. Hobba Jr., S.M. Ward, R. A. Schultz
1987, Open-File Report 84-463
The hydrology of Area 8 in the Ohio River basin in northwestern West Virginia and southeastern Ohio, is influenced by geology and geologic structure. Rocks underlying the area consist of alternating beds of sandstone, siltstone, shale, limestone, and mudstone. Minable coal is contained within the Pennsylvania and Permian rocks. Coal...
Hydrology of area 59, northern Great Plains and Rocky Mountain coal provinces, Colorado and Wyoming
Neville G. Gaggiani, Linda J. Britton, Donald R. Minges, F. A. Kilpatrick, Randolph S. Parker, James E. Kircher
1987, Open-File Report 85-153
Hydrologic information and analysis aid in decisions to lease federally owned coal and to prepare necessary Environmental Assessments and Impact Study reports. This need has become even more critical with the enactment of Public Law 95-87, the "Surface Mining Control and Reclamation Act of 1977." This act requires an appropriate...
Progress report on the ground-water, surface-water, and quality-of-water monitoring program, Black Mesa area, northeastern Arizona, 1987
G. W. Hill, J. P. Sottilare
1987, Open-File Report 87-458
The N aquifer is an important source of water in the 5,400 sq-mi Black Mesa area on the Navajo and Hopi Indian Reservations. The Black Mesa monitoring program is designed to monitor long-term effects on the groundwater resources of the mesa as a result of withdrawals from the aquifer by...
Description of the physical environment and coal-mining history of west-central Indiana, with emphasis on six small watersheds
Jeffrey D. Martin, Charles G. Crawford, R.F. Duwelius, D.E. Renn
1987, Open-File Report 87-212
Information on the geology, geomorphology, soils, climate, hydrology, water use, land use, population, and coal mining history of Clay, Owen, Sullivan, and Vigo Counties in Indiana is summarized. Site-specific information is given on the morphology , geology, soils, land use, coal mining history, and hydrologic instrumentation of the six watersheds...
Analytical results and sample locality map of stream-sediment, heavy mineral-concentrate, rock, and water samples from the Skedaddle (CA-020- 612) and Dry Valley Rim (CA-020-615) Wilderness Study Areas, Lassen County, California, and Washoe County, Nevada
B. M. Adrian, J. G. Frisken, L. A. Bradley, Cliff D. Taylor, J. B. McHugh
1987, Open-File Report 87-494
In the summer of 1985, the U.S. Geological Survey conducted a reconnaissance geochemical survey of the Skedaddle (CA-020-612) and Dry Valley Rim (CA-020-615) Wilderness Study Areas in Lassen County, California, and Washoe County, Nevada.Skedaddle and Dry Valley Rim are contiguous wilderness study areas (WSA) located in the eastern part of...
Methods for geochemical analysis
Philip A. Baedecker, editor(s)
1987, Bulletin 1770
The laboratories for analytical chemistry within the Geologic Division of the U.S. Geological Survey are administered by the Office of Mineral Resources. The laboratory analysts provide analytical support to those programs of the Geologic Division that require chemical information and conduct basic research in analytical and geochemical areas vital to...
Preliminary report, cruises L1-86-NC and L2-86-NC, Escanaba Trough, Gorda Ridge
J. L. Morton, W. R. Normark, Stephanie L. Ross, R.A. Koski, M.L. Holmes, Wayne C. Shanks III, R.A. Zierenberg, M.W. Lyle, L.M. Benninger
1987, Open-File Report 87-375-A
Eight large (up to 200 m across) and many small massive sulfide deposits were photographed and sampled at the sediment-covered Escanaba Trough, southern Gorda Ridge, during S.P. Lee cruises L1-86-NC and L2-86-NC in 1986. The deposits are associated with two volcanic edifices within the sedimentary fill along the axis of...
Remagnetization of the Coast Range Ophiolite and Lower Part of the Great Valley Sequence in Northern California and Southwest Oregon
L.S. Frei, M. Clark Blake Jr.
1987, Journal of Geophysical Research B: Solid Earth (92) 3487-3499
Overprinted magnetizations have been found at four localities in the Middle Jurassic Coast Range ophiolite and the overlying Upper Jurassic and Lower Cretaceous Great Valley sequence in northern California and at one locality in the partially correlative Lower Cretaceous Days Creek Formation in southwest Oregon. At Del Puerto Canyon, on...
Dinosaurs, spherules, and the “magic” layer: A new K-T boundary clay site in Wyoming
B.F. Bohor, Don M. Triplehorn, Douglas J. Nichols, Hugh T. Millard Jr.
1987, Geology (15) 896-899
A new Cretaceous-Tertiary (K-T) boundary clay site has been found along Dogie Creek in Wyoming in the drainage of Lance Creek—the type area of the Lance Formation of latest Cretaceous age. The boundary clay was discovered in the uppermost part of the Lance Formation, 4–7 cm beneath the lowest lignite...
Mapping contact metamorphic aureoles in Extremadura, Spain, using Landsat thematic mapper images
L. C. Rowan, C. Anton-Pacheco, D.W. Brickey, M.J. Kingston, A. Payas
1987, Pecora XI Symposium 77-78
In the Extremadura region of western Spain, Ag, Pb, Zn, and Sn deposits occur in the pieces of late Hercynian granitic plutons and near the pluton contacts in late Proterozoic slate and metagraywacke that have been regionally metamorphosed to the green schist facies. The plutons generally are well exposed...
Lead isotopic fingerprinting of tectono-stratigraphic terranes, east-central Alaska
John N. Aleinikoff, Cynthia Dusel-Bacon, Helen Laura Foster, Warren J. Nokleberg
1987, Canadian Journal of Earth Sciences (24) 2089-2098
Common lead isotopic compositions have been determined on feldspars from meta-igneous rocks from nine tectono-stratigraphic terranes or subterranes in east-central Alaska. Most of the terranes have distinct and well-defined signatures in terms of isotopic composition; thus, most can be distinguished on conventional...
Genesis of marine terrace soils, Barbados, West Indies: evidence from mineralogy and geochemistry
D.R. Muhs, R.C. Crittenden, J.N. Rosholt, C. A. Bush, K. C. Stewart
1987, Earth Surface Processes and Landforms (12) 605-618
Well-developed, clay-rich soils dominated by interstratified kaolinite-smectite are found on the uplifted coral reef terraces on the island of Barbados. The reef limestone is unlikely to have been the soil parent material however, because it is 98% CaCO 3 and geomorphic evidence argues against the 20 m of reef solution...
Mineralogy and petrology of the Cretaceous- Tertiary boundary clay bed and adjacent clay-rich rocks, Raton Basin, New Mexico and Colorado.
R. M. Pollastro, C. L. Pillmore
1987, Journal of Sedimentary Petrology (57) 456-466
The Cretaceous-Tertiary (K-T) boundary is preserved in a sequence of coal-bearing, fluvial rocks in the lower part of the Raton Formation (Late Cretaceous and Paleocene) at several sites in the east-central part of the Raton Basin. The K-T boundary occurs at the top...
