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Publication Extents

Not all publications have extents, not all extents are completely accurate
Geology and lithogeochemistry of the Ren gold prospect, Elko County, Nevada - the role of rock sampling in exploration for deep Carlin-type deposits
George V. Albino
1994, Journal of Geochemical Exploration (51) 37-58
The Ren gold prospect, Elko County, Nevada, is in the northern part of the Carlin trend, two kilometers northwest of the recently-discovered, high-grade Purple Vein deposit. The Ren area is underlain mainly by Paleozoic sedimentary rocks, consisting of limestone, calcareous siltstone, and mudstone of the eastern (carbonate) assemblage, overlain in...
Eruptive activity at Mount St Helens, Washington, USA, 1984-1988: a gas geochemistry perspective
K.A. McGee, A. J. Sutton
1994, Bulletin of Volcanology (56) 435-446
The results from two different types of gas measurement, telemetered in situ monitoring of reducing gases on the dome and airborne measurements of sulfur dioxide emission rates in the plume by correlation spectrometry, suggest that the combination of these two methods is particularly effective in detecting periods of enhanced degassing...
Sediment-transport events on the northern California continental shelf during the 1990-1991 STRESS experiment
C. R. Sherwood, B. Butman, D.A. Cacchione, D.E. Drake, T.F. Gross, R.W. Sternberg, P.L. Wiberg, A. J. Williams III
1994, Continental Shelf Research (14) 1063-1099
Measurements of currents and light transmission were made at bottom tripods and moorings arrayed across the northern California continental shelf along the Coastal Ocean Dynamics Experiment (CODE) "C" transect as part of the 1990-1991 Sediment Transport Events on Shelves and Slopes (STRESS) experiment. In combination with meteorological and wave data...
Density gradient centrifugation: Application to the separation of macerals of type I, II, and III sedimentary organic matter
B.A. Stankiewicz, M.A. Kruge, J.C. Crelling, G.L. Salmon
1994, Conference Paper, Energy & Fuels
Samples of organic matter from nine well-known geological units (Green River Fm., Tasmanian Tasmanite, Lower Toarcian Sh. of the Paris Basin, Duwi Fm., New Albany Sh., Monterey Fm., Herrin No. 6 coal, Eocene coal, and Miocene lignite from Kalimantan) were processed by density gradient centrifugation (DGC) to isolate the constituent...
Block versus continuum deformation in the Western United States
G. King, D. Oppenheimer, F. Amelung
1994, Earth and Planetary Science Letters (128) 55-64
The relative role of block versus continuum deformation of continental lithosphere is a current subject of debate. Continuous deformation is suggested by distributed seismicity at continental plate margins and by cumulative seismic moment sums which yield slip estimates that are less than estimates from plate motion studies. In contrast, block...
Earthquake mechanism and predictability shown by a laboratory fault
C.-Y. King
1994, Pure and Applied Geophysics PAGEOPH (143) 457-482
Slip events generated in a laboratory fault model consisting of a circulinear chain of eight spring-connected blocks of approximately equal weight elastically driven to slide on a frictional surface are studied. It is found that most of the input strain energy is released by a relatively few large events, which...
Age-related reproduction in striped skunks (Mephitis mephitis) in the upper Midwest
Raymond J. Greenwood, Alan B. Sargeant
1994, Journal of Mammalogy (75) 657-662
Reproductive data from the upper Midwest are meager for the striped skunk (Mephitis mephitis), a common North American carnivore. We provide data on some age-related reproductive attributes of 178 female striped skunks collected at 19 sites in eastcentral North Dakota and westcentral Minnesota in 1979–1981 and 1987–1991. Seventy-four percent of...
What is the Alaska Volcano Observatory?
Christina A. Neal, Mike Doukas
1994, Fact Sheet 071-94
Explosive eruptions from Alaska's more than 40 active volcanoes pose a significant and recurring threat to communities, commerce, and aircraft in the north Pacific. The Alaska Volcano Observatory (AVO) was established in 1988 to carry out volcano monitoring, eruption notification, volcanic hazard assessments, and volcano research in Alaska. Effective notifications...
Designing global land cover databases to maximize utility—the US prototype
B. C. Reed, Thomas R. Loveland, L. T. Steyaert, Jesslyn F. Brown, J.W. Merchant, D.O. Ohlen
W.K. Michener, J.W. Brunt, S.G. Stafford, editor(s)
1994, Book chapter, Environmental information management and analysis—ecosystem to global scales
One of the most pressing problems in global climate and ecosystem studies is a lack of adequate land cover data. Staff from the United States Geological Survey's EROS Data Center and the University of Nebraska have developed a United States prototype for a proposed global land cover characteristics database derived...
Decoy trapping and rocket-netting for northern pintails in spring
J. Barry Grand, Thomas F. Fondell
1994, Journal of Field Ornithology (65) 402-405
Decoy traps and rocket-nets were compared for capturing Northern Pintails (Anas acuta: hereafter pintails) during May 1991 on the Yukon Flats, Alaska. Males were captured at similar rates using both methods (1.38 vs. 1.07 males/trap d, respectively), but baited rocket-nets were more efficient than decoy traps for capturing females (0.52...
Determination of malachite green residues in the eggs, fry, and adult muscle-tissue of rainbow-trout (Oncorhynchus-mykiss)
John L. Allen, J.E. Gofus, Jeffery R. Meinertz
1994, Journal of AOAC International (77) 553-557
Malachite green, an effective antifungal therapeutant used in fish culture, is a known teratogen. We developed a method to simultaneously detect both the chromatic and leuco forms of malachite green residues in the eggs, fry, and adult muscle tissue of rainbow trout (Oncorhynchus mykiss). Homogenates of these tissues were...
Potentiometric surfaces of the intermediate aquifer system, west-central Florida, May, 1993
R. A. Mularoni
1994, Open-File Report 94-34
The intermediate aquifer system underlies a 5000-sq-mi area including De Soto, Sarasota, Hardee, Manatee, and parts of Charlotte, Hillsborough, Highlands, and Polk Counties, Florida. It is overlain by the surf@cial aquifer system and underlain by the Floridan aquifer system. The potentiometric surface of the intermediate aquifer system was mapped by...
Geology of Seward Peninsula and Saint Lawrence Island
Alison B. Till, Julie A. Dumoulin
1994, Book chapter, The geology of Alaska: Volume G-1 of Decade of North American Geology
Seward Peninsula (Fig. 1) may be divided into two geologic terranes (Fig. 2) on the basis of stratigraphy, structure, and metamorphic history. The Seward terrane, an area 150 by 150 km in the central and eastern peninsula, is dominated by Precambrian(?) and early Paleozoic blueschist-, greenschist-, and amphibolite-facies schist and...
Geology of south-central Alaska
Warren J. Nokleberg, George Plafker, Frederic H. Wilson
1994, Book chapter, The geology of Alaska: Volume G-1 of Decade of North American Geology
South-central Alaska is defined as the region bounded by the Kuskokwim Mountains to the northwest, the basins north of the Alaska Range to the north, the Canadian border to the east, and the Chugach Mountains to the south (Fig. 1). This region, hereafter called the study area, includes the Alaska...