The hydrothermal system of Long Valley Caldera, California
M.L. Sorey, Robert Edward Lewis, F. H. Olmsted
1978, Professional Paper 1044-A
Long Valley caldera, an elliptical depression covering 450 km 2 on the eastern front of the Sierra Nevada in east-central California, contains a hot-water convection system with numerous hot springs and measured and estimated aquifer temperatures at depths of 180?C to 280?C. In this study we have synthesized the results...
Ore deposits of the Gilman District, Eagle County, Colorado
T. S. Lovering, Ogden Tweto, T.G. Lovering
1978, Professional Paper 1017
The Gilman mining district, known also in the past as the Red Cliff district, is in the mountains of southeastern Eagle County, west-central Colorado. The district is the leading source of zinc in Colorado and one of the major base-metal mining districts in the State. As valued at the time...
K-Ar geochronology of the Survey Pass, Ambler River and Eastern Baird Mountains quadrangles, southwestern Brooks Range, Alaska
Donald L. Turner, R. B. Forbes, C.F. Mayfield
1978, Open-File Report 78-254
We report 76 previously unpublished K-Ar mineral ages from 47 metamorphic and igneous rocks in the southwestern Brooks Range. The pattern of radiometric ages is complex, reflecting the complex geologic history of this area. Local and regional radiometric evidence suggests that the southern Brooks Range schist belt has, at least...
Hydrologic overlay maps of the Titusville SW Quadrangle, Brevard County, Florida
James M. Frazee Jr., Charles P. Laughlin
1978, Open-File Report 78-190
Brevard County is an area of some 1,300 square miles located on the east coast of central Florida. The Titusville SW Quadrangle, in northern Brevard, includes part of the St. Johns River channel and valley with extensive areas of relatively low marshlands. Approximately one half of the quadrangle area lies...
Mineral resources of the Craggy Mountain Wilderness Study Area, Buncombe County, North Carolina
Frank Gardner Lesure, A. E. Grosz, B. B. Williams, Gertrude C. Gazdik
1978, Open-File Report 78-1091
The Craggy Mountain Wilderness Study Area covers about 550 hectares of the Pisgah National Forest in the Blue Ridge Mountains of western North Carolina (fig. 1). The area is 21 km northeast of Asheville, Buncombe County, N.C., and 11 km southwest of Mount Mitchell, the highest point in eastern North...
Hydrologic overlay maps of the Titusville Quadrangle, Brevard County, Florida
James M. Frazee Jr., Charles P. Laughlin
1978, Open-File Report 78-192
Brevard County is an area of some 1,300 square miles located on the east coast of central Florida. The Titusville quadrangle, in northern Brevard, includes part of the Atlanta Coastal Ridge, an area of relatively high sand ridges that are generally above 30 feet in altitude (sheet 1). Approximately the...
Maps showing ground-water conditions in the eastern part of the Salt River Valley area, Maricopa and Pinal counties, Arizona, 1976
R. L. Laney, P. P. Ross, G. R. Littin
1978, Water-Resources Investigations Report 78-61
In 1976 about 1.68 million acre-feet of ground water was pumped in the Salt River Valley, Ariz. Since 1923, more than 73 million acre-feet has been withdrawn, which has resulted in a general decline in water levels. Water levels in the eastern part of the Salt River Valley area have...
Mineral resources of the Cranberry Wilderness Study Area, Pocahontas and Webster counties, West Virginia
Charles R. Meissner Jr., John F. Windolph Jr., Peter C. Mory, Donald K. Harrison, Cornelia Clermont Cameron, Andrew E. Grosz, William J. Perry Jr., Frank Gardner Lesure
1978, Open-File Report 78-142
Cranberry Wilderness Study Area comprises 14,702 ha in the Monongahela National Forest, Pocahontas and Webster Counties, east-central West Virginia. The area is in the Yew Mountains of the Appalachian Plateaus and is at the eastern edge of the central Appalachian coal fields. Cranberry Glades, a peatland of botanical interest lies...
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...
Physiography and surficial geology of the copper-nickel study region, northeastern Minnesota
P. G. Olcott, D. I. Siegel
1978, Water-Resources Investigations Report 78-51
The Copper-Nickel study region lies in the Superior Upland physiographic province and is located approximately 60 miles north of Duluth and 100 miles southeast of International Falls, Minnesota. It straddles the Laurentian Divide, which separates Hudson Bay and Lake Superior drainage. The topography exhibits a southwesterly trending lineation that parallels...
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...
Geotechnical properties of sediments from the Continental Shelf south of Icy Bay, northeastern Gulf of Alaska
Paul R. Carlson, William P. Levy, Bruce F. Molnia, John C. Hampson Jr.
1978, Open-File Report 78-1071
Studies of geotechnical properties of marine sediments have recently intensified as the search for natural resources has expanded on the continental shelf. The U. S. Geological Survey has begun a detailed evaluation of geologic environmental conditions in continental shelf regions in order to facilitate safe development of continental shelf resources....
Fluvial sediment study of Fishtrap and Dewey Lakes drainage basins, Kentucky-Virginia
William F. Curtis, Russell F. Flint, Frederick H. George, John F. Santos
1978, Water-Resources Investigations Report 77-123
Fourteen drainage basins above Fishtrap and Dewey Lakes in the Levisa Fork and Johns Creek drainage basins of eastern Kentucky and southwestern Virginia were studied to determine sedimentation rates and origin of sediment entering the two lakes. The basins ranged in size from 1.68 to 297 square miles. Sediment yields...
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...
Aeromagnetic form-line contour map of the east part of the Rolla, Missouri 1° x 2° quadrangle
Water Resources Division, U.S. Geological Survey
1978, Open-File Report 78-330
No abstract available....
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...
Aeromagnetic map of the eastern part of the Adirondacks Mountains, New York
U.S. Geological Survey
1978, Open-File Report 78-279
No abstract available....
Land use, land cover, and drainage on the Albemarle-Pamlico Peninsula, Eastern North Carolina, 1974
C.C. Daniel
1978, Water-Resources Investigations Report 78-134
A land use, land cover, and drainage map of the 2,000-square-mile Albermarle-Pamlico peninsula of eastern North Carolina has been prepared, at a scale of 1:125,000, as part of a larger study of the effects of large-scale land clearing on regional hydrology. The peninsula includes the most extensive area of wetland...
Altitude and configuration of the top of the Floridan Aquifer, Duval County, Florida
G.W. Leve
1978, Water-Resources Investigations Report 77-114
Structural contours on the top of the Floridan aquifer in Duval County, Florida, show that the top of the aquifer ranges from less than 300 feet below sea level to more than 600 feet below sea level. Two inferred concealed faults occur in the aquifer; one trending northeast-southwest in the...
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...
Hydrologic environment of the Silurian salt deposits in parts of Michigan, Ohio, and New York
Stanley E. Norris
1978, Open-File Report 78-684
The aggregate thickness of evaporites (salt, gypsum, and anhydrite) in the Silurian Salina sequence in Michigan exceeds 1200 feet in areas near the periphery of the Michigan basin, where the salt beds are less than 3000 feet below land surface. In northeast Ohio the aggregate thickness of salt beds is...
A preliminary study of the Santa Barbara, California, earthquake of August 13, 1978, and its major aftershocks
William Hung Kan Lee, C.E. Johnson, T.L. Henyey, R.L. Yerkes
1978, Circular 797
The ML5.1 Santa Barbara earthquake of August 13, 1978 occurred at lat 34' 22.2'N., long 119 ? 43.0' 4 km south of Santa Barbara, Calif. at a depth of 12.5 km in the northeast Santa Barbara Channel, part of the western Transverse Ranges geomorphic-structural province. This part of the province...
Preliminary aeromagnetic map of the eastern part of southern Alaska
John E. Decker, Susan M. Karl
1978, Open-File Report 77-169-E
No abstract available....
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...
