Publications
Listed below are publication products directly associated with the Geology, Energy & Minerals Science Center:
Filter Total Items: 1285
Some aspects of resource uncertainty and their economic consequences in assessment of the 1002 Area of the Arctic National Wildlife Refuge Some aspects of resource uncertainty and their economic consequences in assessment of the 1002 Area of the Arctic National Wildlife Refuge
Exploration ventures in frontier areas have high risks. Before committing to them, firms prepare regional resource assessments to evaluate the potential payoffs. With no historical basis for directly estimating size distribution of undiscovered accumulations, reservoir attribute probability distributions can be assessed subjectively and used to project undiscovered accumulation sizes...
Authors
Emil D. Attanasi, John H. Schuenemeyer
Wisconsin aeromagnetic and gravity maps and data: A web site for distribution of data Wisconsin aeromagnetic and gravity maps and data: A web site for distribution of data
No abstract available.
Authors
David L. Daniels, Stephen L. Snyder
Mineral and energy resource assessment of the Gallatin National Forest (exclusive of the Absaroka-Beartooth study area), in Gallatin, Madison, Meagher, Park, and Sweet Grass Counties, south-central Montana Mineral and energy resource assessment of the Gallatin National Forest (exclusive of the Absaroka-Beartooth study area), in Gallatin, Madison, Meagher, Park, and Sweet Grass Counties, south-central Montana
No abstract available.
Authors
Jane M. Hammarstrom, Anna B. Wilson, James E. Elliott, Bradley S. Van Gosen, Robert R. Carlson, Gregory K. Lee, Dolores M. Kulik, John W. M’Gonigle, William J. Perry
Determination of melanterite-rozenite and chalcanthite-bonattite equilibria by humidity measurements at 0.1 MPa Determination of melanterite-rozenite and chalcanthite-bonattite equilibria by humidity measurements at 0.1 MPa
Melanterite (FeSO4·7H2O)-rozenite (FeSO4·4H2O) and chalcanthite (CuSO4·5H2O)-bonattite (CuSO4·3H2O) equilibria were determined by humidity measurements at 0.1 MPa. Two methods were used; one is the gas-flow-cell method (between 21 and 98 °C), and the other is the humiditybuffer method (between 21 and 70 °C). The first method has a larger temperature uncertainty even though it is more...
Authors
I.-M. Chou, R.R. Seal, B. S. Hemingway
Large-scale fractures related to inception of the Yellowstone hotspot Large-scale fractures related to inception of the Yellowstone hotspot
During middle Miocene time, western North America was subject to flood-basalt volcanism, dike-swarm injection, and broad-scale fracturing and folding of the crust. We propose a simple model to account for these events and for a regional pattern of geologic and geophysical features. Aeromagnetic maps reveal some of the most important elements of this pattern, which are several narrow...
Authors
J.M.G. Glen, D. A. Ponce
Comparison of two probability distributions used to model sizes of undiscovered oil and gas accumulations: Does the tail wag the assessment? Comparison of two probability distributions used to model sizes of undiscovered oil and gas accumulations: Does the tail wag the assessment?
Undiscovered oil and gas assessments are commonly reported as aggregate estimates of hydrocarbon volumes. Potential commercial value and discovery costs are, however, determined by accumulation size, so engineers, economists, decision makers, and sometimes policy analysts are most interested in projected discovery sizes. The lognormal and Pareto distributions have been used to model...
Authors
E. D. Attanasi, Ronald R. Charpentier
The December 1872 Washington state earthquake The December 1872 Washington state earthquake
The largest historical earthquake in eastern Washington occurred on 15 December 1872. We used Modified Mercalli intensity (MMI) assignments for 12 twentieth-century earthquakes to determine attenuation relations for different regions in the Pacific Northwest. MMI attenuation for propagation paths east and west of the Cascade Mountains differs significantly only for epicentral distances...
Authors
W. H. Bakun, R. A. Haugerud, M. G. Hopper, R.S. Ludwin
Lithogeochemical character of near-surface bedrock in the New England coastal basins Lithogeochemical character of near-surface bedrock in the New England coastal basins
This geographic information system (GIS) data layer shows the generalized lithologic and geochemical, termed lithogeochemical, character of near-surface bedrock in the New England Coastal Basin (NECB) study area of the U.S. Geological Survey's National Water Quality Assessment (NAWQA) Program. The area encompasses 23,000 square miles in western and central Maine, eastern Massachusetts...
Authors
Gilpin R. Robinson, Joseph D. Ayotte, Denise L. Montgomery, Leslie A. DeSimone
Preliminary digital geologic map of the Appalachian Piedmont and Blue Ridge, South Carolina segment Preliminary digital geologic map of the Appalachian Piedmont and Blue Ridge, South Carolina segment
A preliminary geology coverage of the Piedmont and Blue Ridge in South Carolina has been compiled at 1:5000,000 scale and digitized as part of a patchwork of coverages for the analysis of regional and national geochemical patterns that may have environmental and resource implications. It was produced from other compilations that incorporate more detailed geologic maps as well as...
Authors
J. Wright Horton, Connie L. Dicken
Geochronology and geology of late Oligocene through Miocene volcanism and mineralization in the western San Juan Mountains, Colorado Geochronology and geology of late Oligocene through Miocene volcanism and mineralization in the western San Juan Mountains, Colorado
This paper presents 25 new 40Ar/39Ar dates from the main calc-alkaline ash-flow sheets and related younger plutons of the western San Juan volcanic field, the ash-flow sheets of the Lake City caldera cycle, and veins and other altered rocks in the Lake City region. The goal of the study was to produce similar quality 40Ar/39Ar ages to those currently published for the eastern and central...
Authors
Dana J. Bove, Ken Hon, Karin E. Budding, John F. Slack, Lawrence W. Snee, Ross A. Yeoman
Lithochronologic units and mineral deposits of the Appalachian Orogen from Maine to Alabama Lithochronologic units and mineral deposits of the Appalachian Orogen from Maine to Alabama
No abstract available.
Authors
J. D. Peper, J. E. Gair, M. P. Foose, T. H. Kress, Connie Dicken