Mineral resources of the Rincon wilderness study area, Pima County, Arizona
Charles H. Thorman, Harald Drewes, Michael Lane
1978, Open-File Report 78-596
The Rincon wilderness study area comprises about 254 km2 (98 mi2) of the Rincon Mountains 15-30 km (10-20 mi) east of Tucson, Arizona. The area lies within the Coronado National Forest and forms a belt around the north, east, and south sides of the Saguaro National Monument (fig. 1). A...
Selected hydrologic data, 1931-77, Wasatch Plateau-Book Cliffs coal-fields area, Utah
K.M. Waddell, H.L. Vickers, Robbin T. Upton, P. Kay Contratto
1978, Open-File Report 78-121
The Wasatch Plateau-Book Cliffs coal-fields area in east-central Utah includes a significant part of the State's coal resources and is currently (1977) the most active coal-mining area in the State.This report presents data gathered by the U.S. Geological Survey as part of a hydrologic reconnaissance carried out during the period...
Scour and fill in a stream channel, East Fork River, western Wyoming
Edmund D. Andrews
1978, Open-File Report 78-928
Frequent soundings of 11 cross sections located on the East Fork River, western Wyoming, during a spring flood revealed two sequences of channel scour and fill. All sections either scoured or filled at the flood crests relative to their low-flow condition. The sections which scoured at high flow (called scouring...
Predictive analyses of ground-water discharges in the Willow Creek Watershed, northeast Nebraska
Jack T. Dugan, Eric G. Lappala
1978, Water-Resources Investigations Report 78-67
Ground-water discharge to Willow Creek, which drains a 204 mi2 watershed in northeast Nebraska was predicted for six combinations of conditions of climate and ground-water development. A digital model of the ground water/surface-water system was stressed with recharge and withdrawal functions determined from a linear reservoir model of the soil...
Postulated model of uranium occurrence in the central mining area, Marysvale District, west-central Utah
Charles G. Cunningham, Thomas August Steven
1978, Open-File Report 78-1093
Uranium in the central mining area of Marysvale, Utah occurs in hydrothermal veins cutting granitic and volcanic rocks in the eastern source area of the Mount Belknap Volcanics. A preliminary model for the origin of the veins envisages deposition in near-surface fractures above an unexposed pluton that may host a...
Analyses of rock samples from the Hunt Fork Shale and related Upper Devonian rocks, Philip Smith Quadrangle, Arctic Alaska
J. Thomas Dutro, David E. Detra
1978, Open-File Report 78-559
More than 1400 m of fine-grained clastic rocks and reefoid limestones constitute the lower part of an Upper Devonian transgressive-regressive cycle in the central Brooks Range, Alaska (Dutro and others, 1977). The Hunt Fork Shale and an underlying heterogeneous unit (unnamed) were measured and sampled on the east side of...
Gazetteer of coastal and offshore features of the Gulf of Alaska north of 54° N latitude
Marybeth Gerin, Bruce F. Molnia
1978, Open-File Report 78-208
This gazetteer, the first of three to be released, presents names of seafloor features of the Gulf of Alaska and coastal features north of 54° N latitude between Cross Sound to the east and Unimak Island to the west. Also included are Prince William Sound and Cook Inlet but not...
Distribution of dissolved nitrate and fluoride in ground water, Highland-East Highlands, San Bernardino County, California
Lawrence A. Eccles, John M. Klein
1978, Water-Resources Investigations Report 78-14
In the Highland-East Highlands area of southern California, concentrations of nitrate in water from many wells exceed the U.S. Environmental Protection Agency 's and the California Department of Health 's recommended limit for public water supplies. The nitrate standards for public water supplies in the study area are commonly met...
Geology of the Arco-Big Southern Butte area, eastern Snake River Plain, and potential volcanic hazards to the radioactive waste management complex, and other waste storage and reactor facilities at the Idaho National Engineering Laboratory, Idaho
Mel A. Kuntz, John O. Kork
1978, Open-File Report 78-691
The Arco-Big Southern Butte area of the eastern Snake River Plain, Idaho, includes a volcanic rift zone and more than 70 Holocene and late Quaternary basalt volcanoes. The Arco volcanic rift zone extends southeast for 50 km from Arco to about 10 km southeast of Big Southern Butte. The rift...
Relationship of landslides to fractures in Potomac Group deposits, Fairfax County, Virginia
William H. Langer, Stephen F. Obermeier
1978, Open-File Report 78-779
Landsliding is a common problem in eastern Fairfax County, an area underlain by Potomac Group (Lower Cretaceous) Coastal Plain deposits of silt and clay interbedded and interfingered with sand and gravel. The slides commonly are present in clay and silt that, on the basis of laboratory tests, appear to be...
Pennsylvanian (Upper Carboniferous) system of Wyoming
Edwin K. Maughan
1978, Open-File Report 78-377
Pennsylvanian rocks in Wyoming comprise two stratigraphic sequences bounded by regional unconformities. Red mudstone and limestone characterize the strata in the lower sequence, and sandstone and dolomite characterize the strata in the upper sequence. Initial deposits of the lower sequence are-red mudstone probably of no older age than about middle...
Potential hazards from future eruptions in the vicinity of Mount Shasta Volcano, northern California
C. Dan Miller
1978, Open-File Report 78-827
Mount Shasta has erupted, on the average, at least once per 800 years during the last 10,000 years, and about once per 600 years during the last 4,500 years. The last known eruption occurred about 200 radiocarbon years ago. Eruptions during the last 10,000 years produced lava flows and domes...
Water-table map of Racine County, Wisconsin
M.G. Sherrill, J.J. Schiller
1978, Water-Resources Investigations Report 79-41
A map (scale 1:100,000) of the water table in Racine County in southeastern Wisconsin was prepared using water levels from more than 250 wells. The work was done as a cooperative project between the U.S. Geological Survey and the Southeastern Wisconsin Regional Planning Commission. The map shows the altitude of...
Water-table map of Walworth County, Wisconsin
Marvin G. Sherrill, John R. Erickson
1978, Water-Resources Investigations Report 79-42
A map of the water table in Walworth County in southeastern Wisconsin was prepared using water levels from nearly 600 wells. The work was done as a cooperative project between the U.S. Geological Survey, the University of Wisconsin-Extension, Geological and Natural History Survey, and the Southeastern Wisconsin Regional Planning Commission....
Ten-year low mean monthly discharge determinations for ungaged streams near waste-stabilization ponds in Wisconsin
Stephen J. Field
1978, Water-Resources Investigations Report 78-49
Communities that use fill-and-draw waste-water treatment lagoons or waste-stabilization ponds are required to discharge during the spring and fall of the year at a rate that does not exceed the assimilative capacity of the receiving stream. The 10-year low mean monthly discharge (MMQ10) for October, November, April, and May for...
Spectral reflectance measurements of plants in the East Tintic Mountains, Utah
Nancy Milton
1978, Open-File Report 78-448
No abstract available....
The metallogenic role of east-west fracture zones in South America with regard to the motion of lithospheric plates (with an example from Brazil)
J. Kutina, William D. Carter, F.X. Lopez
1978, Jornal de Mineralogia (7) 97-110
The role of east-west fracture zones in South America is discussed with regard to global fracturing and the motion of lithospheric plates. A set of major NW-trending lineaments has been derived which show a tendency to be spaced equidistantly and may correspond to a set of east-west fractures in the...
Tectolinear interpretation of a 1:5,000,000 Landsat-1 mosaic compared with the structure of central and eastern United States
Jan Kutina, William D. Carter
1978, Global Tectonics and Metallogeny (1) 78-82
The pattern of lineaments and curvilinear features interpreted from a 1:5,000,000 mosaic of satellite images (Landsat-1 was superimposed on a simplified version of the Geological Map of the United States, 1:2,500,000 scale, showing the structural scheme of Central and Eastern United States. A comparison of the above two patterns, shown...
Marine diatom sequence in Miocene strata of the Chesapeake Bay region, Maryland
George W. Andrews
1978, Micropaleontology (24) 371-406
The Calvert and Choptank Formations exposed along the west shore of Chesapeake Bay in Maryland have been correlated with strata of early and middle Miocene age. The stratigraphic ranges of marine diatom marker species indicate a distinct diatom sequence in the deposits. A few diatoms that mark deep-sea Miocene deposits...
Metallogenesis in the western United States
P. W. Guild
1978, Journal of the Geological Society (135) 355-376
Although the Mesozoic-Cenozoic metallogeny of the western United States unquestionably resulted from convergence of the North American and Pacific Ocean plates, subduction alone does not adequately explain the distribution of the ore deposits in Laramide and post-Laramide time, when magmatism and mineralization extended irregularly eastward at least 1500 km from...
Neogene basin formation in relation to plate tectonic evolution of San Andreas fault system, California
Blake, R. H. Campbell, T. W. Dibblee Jr., D. G. Howell, Tor H. Nilsen, W. R. Normark, J. G. Vedder, E. A. Silver
1978, American Association of Petroleum Geologists Bulletin (62) 344-372
More than 90% of the known petroleum accumulations west of the San Andreas fault in California are in strata deposited in areally restricted Neogene basins that formed during a major tectonic reorganization of western California. These deep, localized Neogene basins replaced broad, regionally persistent Paleogene depositional aprons, although some of...
The IFG incremental methodology for physical instream habitat evaluation
Clair B. Stalnaker
1978, Book, Surface Mining and Fish/Wildlife Needs in the Eastern United States: Proceedings of a Symposium
Regional gravity and magnetic anomalies in the eastern Snake River Plain, Idaho
Don R. Mabey
1978, Journal of Research of the U.S. Geological Survey (6) 553-562
Over the eastern Snake River Plain, the Bouguer gravity anomaly and the magnetic intensity are, in general, high. In detail, both the gravity and the magnetic anomalies are a complex of highs and lows, in contrast to the simpler anomalies over the western Snake River Plain. The broad gravity high...
CS2 and COS in soil gases of the Roosevelt Hot Springs Known Geothermal Resource Area, Beaver County, Utah
Margaret Hinkle, Thelma F. Harms
1978, Journal of Research of the U.S. Geological Survey (6) 571-578
Soil-gas samples were collected in two parallel traverses across the Dome fault zone of the Roosevelt Hot Springs Known Geothermal Resource Area. Gas chromatographic analyses of the samples showed anomalous concentrations of CS3 and COS east of the Dome fault; higher concentrations of CS2 and COS also occurred over an...
Holocene pyroclastic-flow deposits from Shastina and Black Butte, west of Mount Shasta, California
C. Dan Miller
1978, Journal of Research of the U.S. Geological Survey (6) 611-623
A broad apron of pyroclastic-flow deposits derived from dacitic domes of Holocene age at Black Butte and Shastina covers an area of more than 110 km2 on the west flank of Mt. Shasta volcano. The stratigraphy of the deposits is exposed in readouts along a northwest-southeast line between the cities...
