Preliminary geologic map of the Butte 1 degree by 2 degrees quadrangle, western Montana
C. A. Wallace, R. G. Schmidt, D. J. Lidke, M. R. Waters, J. E. Elliott, A. B. French, J. W. Whipple, S. E. Zarske, M. J. Blaskowski, B. A. Heise, R. A. Yeoman, J.M. O’Neill, D. A. Lopez, G. D. Robinson, M. R. Klepper
1987, Open-File Report 86-292
No abstract available....
Water Resources Data for West Virginia, Water Year 1985
W.N. Embree, E.A. Friel, F.M. Taylor
1987, Water Data Report WV-85-1
Water resources data for the 1985 water year for West Virginia consist of records of stage, discharge, and water quality of streams; contents of reservoirs; and water levels and water quality of observation wells. This report contains discharge records for 75 streamflow-gaging stations; stage only records for 12 gaging stations,...
Seismicity map of the state of Pennsylvania
C. W. Stover, B.G. Reagor, S. T. Algermissen
1987, Miscellaneous Field Studies Map 1280
This map is one of a series of seismicity maps produced by the U. S. Geological Survey that show earthquake data of individual states or groups of states at the scale of 1:1,000,000. This map shows only those earthquakes with epicenters located within the boundaries of Pennsylvania, even though earthquakes...
Maps showing aeromagnetic intensity, flight altitudes, and generalized aeromagnetic intensity of the Walker Lake 1 degree by 2 degrees Quadrangle, California and Nevada
Donald Plouff
1987, Miscellaneous Field Studies Map 1382-F
No abstract available....
Seismicity map of the state of Florida
B. Glen Reagor, Carl W. Stover, Sylvester Theodore Algermissen
1987, Miscellaneous Field Studies Map 1056
This map is one of a series of seismicity maps produced by the U. S. Geological Survey that show earthquake data of individual states or groups of states at the scale of 1:1,000,000. This map shows only those earthquakes with epicenters located within the boundaries of Florida, even though earthquakes...
Decomposition rates of peat in drained and undrained wetlands
J.M. Friedman
K. Mutz, editor(s)
1987, Conference Paper, Proceedings of the Eighth Annual Meeting of the Society of Wetland Scientists
No abstract available....
Residence of silver in mineral deposits of the Thunder Mountain caldera complex, Central Idaho, U.S.A.
B. F. Leonard, R.P. Christian
1987, Mineralogy and Petrology (36) 151-168
Silver is an accessory element in gold, antimony, and tungsten deposits of the caldera complex. Most of the deposits are economically of low grade and genetically of xenothermal or epithermal character. Their gold- and silver-bearing minerals are usually disseminated, fine grained, and difficult to study. Sparsely disseminated pyrite and arsenoprite...
Using a spatial and tabular database to generate statistics from terrain and spectral data for soil surveys
E.A. Horvath, E. A. Fosnight, A. A. Klingebiel, D. G. Moore, J.E. Stone
W.U. Reybold, G.W. Petersen, editor(s)
1987, Book chapter, Soil survey techniques, SSSA Special Publication 20
A methodology has been developed to create a spatial database by referencing digital elevation, Landsat multispectral scanner data, and digitized soil premap delineations of a number of adjacent 7.5-min quadrangle areas to a 30-m Universal Transverse Mercator projection. Slope and aspect transformations are calculated from elevation data and grouped according...
Ice-edge eddies in the Fram Strait marginal ice zone
O.M. Johannessen, J.A. Johannessen, E. Svendsen, R.A. Shuchman, W. J. Campbell, E. Josberger
1987, Science (236) 427-429
Five prominent ice-edge eddies in Fram Strait on the scale of 30 to 40 kilometers were observed over deep water within 77°N to 79°N and 5°W to 3°E. The use of remote sensing, a satellite-tracked buoy, and in situ oceanographic measurements showed the presence of eddies with orbital speeds of...
New evidence on the state of stress of the San Andreas fault system
Mark D. Zoback, M.L. Zoback, S. Van Mount, J. Suppe, J. P. Eaton, J. H. Healy, D. Oppenheimer, P. Reasenberg, L. Jones, C.B. Raleigh, I.G. Wong, O. Scotti, C. Wentworth
1987, Science (238) 1105-1111
Contemporary in situ tectonic stress indicators along the San Andreas fault system in central California show northeast-directed horizontal compression that is nearly perpendicular...
Earthquakes, July-August 1987
W. J. Person
Henry Spall, editor(s)
1987, Earthquakes & Volcanoes (USGS) (19) 150-153
There was one major earthquakes (7.0-7.9) during this reporting period, a magnitude 7.1 on July 6 in the Vanuatu Islands of teh South Pacific Ocean. In the United States, a strong earthquake, a magnitude 6.0, occurred on July 31 near the coast of northern California and caused some damage...
Composition of fluid inclusions in Permian salt beds, Palo Duro Basin, Texas, U.S.A.
E. Roedder, W. M. d’Angelo, A. F. Dorrzapf Jr., P. J. Aruscavage
1987, Chemical Geology (61) 79-90
Several methods have been developed and used to extract and chemically analyze the two major types of fluid inclusions in bedded salt from the Palo Duro Basin, Texas. Data on the ratio K: Ca: Mg were obtained on a few of the clouds of tiny inclusions in "chevron" salt, representing...
Calculation of solar radiation in mountainous terrain
Alan L. Flint, S.W. Childs
1987, Agricultural and Forest Meteorology (40) 233-249
A study was performed to assess the accuracy of a daily solar radiation model for horizontal or sloping sites in terrain where surrounding ridges and tall trees block both direct beam and diffuse sky short wave radiation. To simulate adequately the major effects of these environments on radiation, the model...
The use of remote sensing data in geographic information systems for hydrologic studies in developing countries
D. G. Moore
Carlos Chagas, Vittorio Canuto, editor(s)
1987, Conference Paper, Study week on: Remote sensing and its impact on developing countries
No abstract available....
Earthquakes, September-October 1986
W. J. Person
1987, Earthquakes & Volcanoes (USGS) (19) 74-76
There was one great earthquake (8.0 and above) during this reporting period in the South Pacific in the Kermadec Islands. There were no major earthquakes (7.0-7.9) but earthquake-related deaths were reported in Greece and in El Salvador. There were no destrcutive earthquakes in the United States....
Resource assessments, geologic deposit models, and offshore minerals with an example of heavy-mineral sands
Emil D. Attanasi, J. H. DeYoung, E. R. Force, Andrew Grosz
P. G. Teleki, M.R. Dobson, Jeffrey R. Moore, von Stackelberg U., editor(s)
1987, Book chapter, Marine minerals
A resource assessment method for offshore minerals based on descriptive and grade-tonnage models is proposed. Historical development and applications of this method are summarized. Based on this approach, descriptive and quantitative deposit models for strand-line titanium placer deposits have been developed. Descriptive statistics were also computed using the worldwide deposit...
Lower Eocene calcareous nannofossil biostratigraphy beneath the Atlantic slope and upper rise off New Jersey: new zonation based on Deep Sea Drilling Project sites 612 and 613
Page C. Valentine
Katie L. Turner, editor(s)
1987, Book chapter, Initial reports of the Deep Sea Drilling Project covering Leg 95 of the cruises of the drilling vessel Glomar Challenger, St. John's, Newfoundland, to Ft. Lauderdale, Florida, August-September 1983
No abstract available....
Surficial aquifer system in eastern Lee County, Florida
D. H. Boggess, F. A. Watkins
1986, Water-Resources Investigations Report 85-4161
The surficial aquifer system in eastern Lee County consists of an upper water bearing unit, which is generally unconfined, and a lower water bearing unit, which is confined and is the major source tapped by most wells. The top of the lower unit, which is of primary interest in this...
Hydrogeologic conditions and saline-water intrusion, Cape Coral, Florida, 1978-81
D. J. Fitzpatrick
1986, Water-Resources Investigations Report 85-4231
The upper limestone unit of the intermediate aquifer system, locally called the upper Hawthorn aquifer, is the principal source of freshwater for Cape Coral, Florida. The aquifer has been contaminated with saline water by downward intrusion from the surficial aquifer system and by upward intrusion from the Floridan aquifer system....
Tests for injecting, storing, and recovering freshwater in a saline artesian aquifer, Lee County, Florida
D. J. Fitzpatrick
1986, Water-Resources Investigations Report 85-4249
An investigation was made of the suitability of a saline, artesian limestone aquifer for the injection, storage, and recovery of freshwater from the Caloosahatchee River. The tests were conducted on a well tapping a leaky artesian system that has a transmissivity of 800 square feet per day, a storage of...
Chemical effects of highway runoff on the surficial aquifer, Broward County, Florida
Barbara Howie, B.G. Waller
1986, Water-Resources Investigations Report 86-4200
In many areas of Broward County, swales are commonly designed to accept stormwater runoff from highways. Two sites adjacent to heavily traveled highways were studied to determine if stormwater percolating through unsaturated sand underlying the swales may affect the quality of water in the Biscayne aquifer. Concentrations of selected chemicals...
Water resources data Maryland and Delaware, water year 1985
R.W. James, R.H. Simmons, B.F. Strain
1986, Water Data Report MD-DE-85-1
No abstract available....
Water resources data Maryland and Delaware, water year 1986
R.W. James, R.H. Simmons, B.F. Strain
1986, Water Data Report MD-DE-86-1
No abstract available. ...
Later Paleozoic and Early Jurassic fossil ages from the McHugh Complex: A section in Geologic studies in Alaska by the U.S. Geological Survey during 1985 Circular 978
Steven W. Nelson, Charles D. Blome, Anita G. Harris, Katherine M. Reed, Frederic H. Wilson
1986, Circular 978
Late Mississippian through Early Pennsylvanian and Early Jurassic microfossils were collected from the type locality of the McHugh Complex (Clark, 1973) along the Seward Highway southeast of Anchorage (fig. 36). Radiolarians collected indicate that same of the oceanic rocks in the McHugh Complex are Early Jurassic in age. Conodonts extracted from...
Developing a state water plan: Ground-water conditions in Utah, spring of 1986
James L. Mason, G. J. Smith, D. Michael Roark, Patrick M. Lambert, V.L. Jensen, Dale E. Wilberg, Carole B. Burden, R. B. Garrett, D. C. Emett, Susan Duncanson, G. W. Sandberg, R. W Puchta, L. R. Herbert
1986, Cooperative Investigations Report 26
This is the twenty-third in a series of annual reports that describe ground-water conditions in Utah. Reports in this series, published cooperatively by the U.S. Geological Survey and the Utah Division of Water Resources, provide data to enable interested parties to keep abreast of changing ground-water conditions.This report, like the...
