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Not all publications have extents, not all extents are completely accurate
Comparative anatomy of epithermal precious- and base-metal districts hosted by volcanic rocks: A talk presented at the GAC/MSC/GGU Joint Annual Meeting, May 11-13, 1983, Victoria, British Columbia
Pamela Heald-Wetlaufer, Daniel O. Hayba, Nora K. Foley, J.A. Goss
1983, Open-File Report 83-710
In order to distinguish dissimilar from similar features of epithermal districts, lithotectonic, mineralogical and geochemical traits are compiled for 15 such districts. The districts occur in structurally complex settings associated with silicic to intermediate volcanics. Affiliation with subduction environments on a continental scale and caldera settings on a regional scale...
Mineral resource potential map of the Stansbury Roadless Area, Tooele County, Utah
M. L. Sorensen, R. F. Kness
1983, Miscellaneous Field Studies Map 1353-C
The U.S. Bureau of Mines and the U.S. Geological Survey have conducted a survey to determine the mineral resource potential of the eastern part (D4757) of the Stansbury Roadless Area, Tooele County, Utah. The results of this survey indicate that a low to moderate potential for copper, lead, and silver...
Garnet peridotites from Williams kimberlites, north-central Montana, U.S.A
B.C. Hearn, E. S. McGee
1983, Open-File Report 83-172
Two Williams kimberlites, 250x350m and 37x390m, in the eastern part of a swarm of 30 middle Eocene alnoitic diatremes in north-central Montana, USA, contain xenoliths of garnet-bearing lherzolites, harzburgites and dunites, in addition to spinel peridotites and upper and lower crustal amphibolites and granulites. Colluvial purple, red, and pink garnets...
Proceedings of Conference XVIII: a workshop on "Continuing actions to reduce losses from earthquakes in the Mississippi Valley area," 24-26 May, 1982, St. Louis, Missouri
Walter W. Hays, Carla Kitzmiller (compiler)
Paula L. Gori, editor(s)
1983, Open-File Report 83-157
The U.S. Geological Survey and the Federal Emergency Management Agency sponsored a workshop on, "Continuing Actions to Reduce Losses from Earthquakes in the Mississippi Valley area," in St. Louis, Missouri, on May 24-26, 1982. Seventy individuals (see Appendix A) representing local, State, and Federal government; business and industry; and the...
Nevada - basic data for thermal springs and wells as recorded in Geotherm; Part A
James D. Bliss
1983, Open-File Report 83-433-A
GEOTHERM, a computerized information system now off-line, was used to maintain data on the geology, geochemistry and hydrology of geothermal sites primarily within the United States. The system was proposed at the First Geothermal Implementation Conference in New Zealand in 1974 (Swanson, 1977) and was active until 1983. The primary...
Geochemical maps of the Selway-Bitterroot Wilderness, Idaho County, Idaho, and Missoula and Ravalli counties, Montana
Berton W. Coxe, Margo I. Toth
1983, Miscellaneous Field Studies Map 1495-C
The Selway-Bitterroot Wilderness covers almost 2,000 mi2 in east-central Idaho and western Montana (fig. 1). The wilderness lies across the Bitterroot Range, which forms the boundary between Idaho and Montana, and includes large portions of the drainages of the Selway, Lochsa, and Bitterroot Rivers. Elevations range from 1,800 ft on...
Summary of water withdrawals in the United States, 1950-80
William B. Mann, Wayne B. Solley, Edith B. Chase
1983, Open-File Report 83-207
Estimated use of water in the United States increased from 180 bgd (billion gallons per day) in 1950 to 450 bgd in 1980. During this same time population increased from about 150 million to about 230 million. Data on consumptive use are not available for the first decade of the...
Mineral resource potential map of the Spanish Peaks Wilderness Study Area, Huerfano and Las Animas counties, Colorado
Karin E. Budding, Steven E. Kluender
1983, Miscellaneous Field Studies Map 1542-C
A geologic and geochemical investigation and a survey of mines and prospects have been conducted to evaluate the mineral resource potential of the Spanish Peaks Wilderness Study Area, Huerfano and Las Animas Counties, in south-central Colorado. The·study area is underlain by sedimentary rocks of Paleozoic to Tertiary age (Johnson, 1969)....
Structure maps and seismic stratigraphy of the Yakataga segment of the continental margin, northern Gulf of Alaska
T.R. Bruns, W. C. Schwab
1983, Miscellaneous Field Studies Map 1424
Multichannel seismic-reflection data show the late Cenozoic structure, seismic stratigraphy, and geologic history of the Yakataga segment of the continental margin, between Icy Bay and Kayak Island, northern Gulf of Alaska. The structure of the Yakataga segment consists of broad folds and associated thrust faults beneath the continental shelf and...
Daily water and sediment discharges from selected rivers of the eastern United States; a time-series modeling approach
Michael G. Fitzgerald, Michael R. Karlinger
1983, Water Supply Paper 2216
Time-series models were constructed for analysis of daily runoff and sediment discharge data from selected rivers of the Eastern United States. Logarithmic transformation and first-order differencing of the data sets were necessary to produce second-order, stationary time series and remove seasonal trends. Cyclic models accounted for less than 42 percent...
The Emma Bell deposit, Siskiyou Co., California: A possible low-grade source of chromite
B. R. Lipin, Nicholas Wetzel, S. M. Heinrich
1983, Open-File Report 83-816
The Emma Bell chromite deposit in Siskiyou County, California contains over 5 million tons of dunite averaging about 4 percent Cr2O3. Chromite is not evenly disseminated throughout the dunite, however. For the most part the deposit consists of many chromite-rich bands in sharp contact with, and separated by, common dunite...
Biostratigraphic correlation chart of some Upper Cretaceous rocks from the Lost Soldier area, Wyoming to west of Craig, Colorado
J.W. Bader, J. R. Gill, W. A. Cobban, B. E. Law
1983, Miscellaneous Field Studies Map 1548
This chart depicts the time-stratigraphic relations of some Upper Cretaceous rocks along the eastern and southeastern margins of the Greater Green River Basin, south-central Wyoming and northwestern Colorado. The purpose of this report is to release a preferred set of correlations based upon marine mollusk biostratigraphy. The senior author, with...
Geoelectric structure of the Gila-San Francisco Wilderness Area, Graham and Greenlee Counties, Arizona, from audio-magnetotelluric data
D. P. Klein, M. J. Baer
1983, Open-File Report 83-815
Electromagnetic induction data using distant field sources, mostly of natural origin, in the frequency range of 4.5-27,000 Hz are analyzed to depict the geoelectric structure in an area of volcanic-rock cover located in southeastern Arizona between the Morenci and Safford porphyry copper deposits. The data for each station consist of...
Ground water in the northern part of Clackamas County, Oregon
A.R. Leonard, C. A. Collins
1983, Open-File Report 80-1049
Northern Clackamas County is part of the rapidly growing Portland metropolitan area. Population of this 250-square-mile area increased about 50 percent between 1970 and 1976. The study area includes a small segment of the Willamette River alluvial valley near Canby, and extends northward to the Clackamas River and eastward to...
A hydrogeochemical survey in east-central Nevada
John B. McHugh, W. Roger Miller, Walter H. Ficklin
1983, Open-File Report 83-286
A hydrogeochemical survey utilizing waters from springs and wells was conducted in east-central Nevada. None of the trace elements commonly associated with mineralization were found to be highly anomalous in the study area. Slightly anomalous values for some elements were found in the southern valleys of the study area and...