Mineral resources of the Orocopia Mountains Wilderness Study Area, Riverside County, California
Gordon B. Haxel, D. B. Smith, C. L. Whittington, Andrew Griscom, D. V. Diveley-White, R. E. Powell, T. J. Kreidler
1988, Bulletin 1710-E
Geohydrology and digital simulation of the ground-water flow system in the Umatilla Plateau and Horse Heaven Hills area, Oregon and Washington
A. Davies-Smith, E.L. Bolke, C. A. Collins
1988, Water-Resources Investigations Report 87-4268
The Columbia Plateau is underlain by massive basalt flows, with a composite thickness of about 10,000 ft. Structural features within the study area include a series of anticline-syncline pairs. The main avenues of groundwater movement in the basalt are the interflow zone between basalt flows. Individual interflow zones may be...
The role of captive propagation in the recovery of the Mississippi sandhill crane
J.L. McMillen, D. H. Ellis, D.G. Smith
1987, Endangered Species Technical Bulletin (12) 6-8
Mineral resource assessment of the Kofa National Wildlife Refuge, Arizona
W.C. Bagby, G. B. Haxel, D. B. Smith, R. D. Koch, M. J. Grubensky, D. R. Sherrod, L. G. Pickthorn
1987, Open-File Report 87-609
Gneiss-hosted kyanite gold and gneiss-hosted epithermal gold; a supplement to U.S. Geological Survey bulletin 1693
R. M. Tosdal, D. B. Smith
1987, Open-File Report 87-272-B
Analytical results and sample locality map of stream-sediment, heavy-mineral-concentrate, and rock samples from the New Water Mountains Wilderness Study Area, La Paz County, Arizona
B. M. Adrian, D. B. Smith, R. T. Hill, T. A. Roemer, R. B. Vaughn, T. A. Delaney
1987, Open-File Report 87-339
No abstract available....
Mineral resources of the Indian Pass and Picacho Peak Wilderness Study Areas, Imperial County, California
David B. Smith, B. R. Berger, R. M. Tosdal, D. R. Sherrod, G. L. Raines, Andrew Griscom, M.G. Helferty, Clayton M. Rumsey, A. B. McMahan
1987, Bulletin 1711-A
Geochemical studies in the Indian Pass and Picacho Peak Bureau of Land Management Wilderness study areas, imperial county, Southern California
D. B. Smith, B. R. Berger, R. M. Tosdal
1987, Journal of Geochemical Exploration (28) 479-494
The U.S. Geological Survey has conducted geochemical studies in the Indian Pass (CDCA-355), 124 km2, and Picacho Peak (CDCA-355A), 23 km2, Wilderness Study Areas (WSA's) as part of a program to evaluate the mineral resource potential of designated areas in the California Desert Conservation Area. These two WSA's are of...
Evaluation of the improvement in sensitivity of nested frequency plots to vegetational change by summation
Stuart D. Smith, Stephen C. Bunting, M. Hironaka
1987, Western North American Naturalist (47) 299-307
At four sites in Idaho, frequency was measured separately with three different-sized plots (10 x 25, 15 x 33.5, and 20 x 50 cm) arranged in a nested configuration. These individual frequency values were added together to create a summed “frequency.” This summed value was compared to the original frequency...
Ecological comparison of sympatraic populations of sand lizards (Cophosaurus texanus and Callisaurus draconoides)
D.D. Smith, P.A. Medica, S.R. Sanborn
1987, Great Basin Naturalist (47) 175-185
Bow-pole perch for raptors
D. H. Ellis, D.G. Smith
1986, Hawk Chalk (25) 42-44
An overview of raptor conservation in Latin America
D. H. Ellis, D.G. Smith
1986, Birds of Prey Bulletin (3) 21-25
Prior to the last decade, biological studies of raptorial birds in Latin America were almost nonexistent. For many species little more was known than their general range and habitat type. The last few years have seen the opening of a door to what will surely be a flood of scientific...
Nonlinear least-squares inversion of frequency-domain induced polarization data (Program NLSIP)
W.L. Anderson, B. D. Smith
1986, Open-File Report 86-280
Analytical results and sample locality maps of stream-sediment, heavy-mineral-concentrate, and rock samples from the Kofa National Wildlife Refuge, Yuma and La Paz Counties, Arizona
B. M. Adrian, D. B. Smith, R. T. Hill, T. A. Roemer, R. B. Vaughn, T. A. Delaney
1986, Open-File Report 86-199
Habitat comparisons and productivity in nesting common terns on the mid-Atlantic coast
R.M. Erwin, D. C. Smith
1985, Colonial Waterbirds (8) 155-165
Nesting Common Terns (Sterna hirundo) were studied at a number of barrier beaches and small islands of tidal salt marsh in New Jersey and the Eastern Shore of Maryland-Virginina from 1980 through 1982. Data were collected on clutch sizes, nest spacing, and nesting success. The principal null hypothesis tested was...
Mineral resource potential map of roadless areas and the Santa Lucia Wilderness in the Los Padres National Forest, Southwestern California
V.A. Frizzell, D. B. Smith, Lucia Kuizon, W.N. Hale
1985, Miscellaneous Field Studies Map 1655-B
Geochemical map of the Dinkey Lakes Roadless Area, Fresno County, California
D. B. Smith, B. M. Adrian, R. B. Vaughn, C. M. McDougal
1985, Miscellaneous Field Studies Map 1389-C
Electrical geophysical investigations of massive sulfide deposits and their host rocks, West Shasta copper-zinc district
R. J. Horton, B. D. Smith, J.C. Washburne
1985, Economic Geology (80) 2213-2229
The West Shasta copper-zinc district, Shasta County, California, contains many volcanogenic sulfide deposits within Middle Devonian rhyolites that have not been highly metamorphosed. The district was selected by the U.S. Geological Survey for intensive geological, geochemical, and geophysical study under the Development of Assessment Techniques (DAT) project because accessible exposures...
Nonlinear least-squares inversion of transient induced polarization data (Program NLSTIP)
W.L. Anderson, B. D. Smith
1984, Open-File Report 84-514
Analytical results and sample locality map of stream-sediment, heavy-mineral-concentrate, rock, and water samples from the roadless areas and the Santa Lucia Wilderness in the Los Padres National Forest, Kern, Los Angeles, San Luis Obispo, Santa Barbara, and Ventura Counties, southwestern California
B. M. Adrian, D. B. Smith, V. A. Frizzell Jr., R. B. Vaughn
1984, Open-File Report 84-675
No abstract available....
Analytical results and sample locality map of stream-sediment, heavy-mineral-concentrate, and rock samples from the Indian Pass (CDCA-355) and Picacho Peak (CDCA-355A) Wilderness Study Areas, Imperial County, California
B. M. Adrian, D. B. Smith, D. E. Detra, T. A. Roemer
1984, Open-File Report 84-779
No abstract available....
Geophysical surveys at the Getchell and Preble disseminated gold deposits, Humboldt County, Nevada
W. D. Heran, B. D. Smith
1984, Open-File Report 84-795
Assessment of mineral resources in the Muggins Mountains Bureau of Land Management Wilderness Study Area (AZ-050-53A), Yuma County, Arizona
D. B. Smith, R. M. Tosdal, B. M. Adrian, R. B. Vaughn
1984, Open-File Report 84-662
No abstract available....
Chemical analyses for samples of rock, stream sediment, and nonmagnetic heavy-mineral concentrates, Dinkey Lakes Roadless Area, Fresno County, California
B. M. Adrian, D. B. Smith, R. B. Vaughn, C.C. McDougal
1983, Open-File Report 83-813
Mineral resource potential map of the Marble Mountain Wilderness, Siskiyou County, California
M. M. Donato, R.C. Jachens, D. B. Smith, W.N. Hale
1983, Miscellaneous Field Studies Map 1452-B