Publications
Listed below are publication products directly associated with the Geology, Energy & Minerals Science Center:
Filter Total Items: 1166
USGS compilation of geographic information system (GIS) data representing coal mines and coal-bearing areas in China
Geographic information system (GIS) information may facilitate energy studies, which in turn provide input for energy policy decisions. The U.S. Geological Survey (USGS) has compiled geographic information system (GIS) data representing the known coal mine locations and coal-mining areas of China as of 2001. These data are now available for download, and may be used in a GIS for a variety of energ
Authors
Michael H. Trippi, Harvey E. Belkin, Shifeng Dai, Susan J. Tewalt, Chiu-Jung Chou
Evaluation of selected static methods used to estimate element mobility, acid-generating and acid-neutralizing potentials associated with geologically diverse mining wastes
A comparison study of selected static leaching and acid–base accounting (ABA) methods using a mineralogically diverse set of 12 modern-style, metal mine waste samples was undertaken to understand the relative performance of the various tests. To complement this study, in-depth mineralogical studies were conducted in order to elucidate the relationships between sample mineralogy, weathering feature
Authors
Philip L. Hageman, Robert R. Seal, Sharon F. Diehl, Nadine M. Piatak, Heather Lowers
Central Appalachian basin natural gas database: distribution, composition, and origin of natural gases
The U.S. Geological Survey (USGS) has compiled a database consisting of three worksheets of central Appalachian basin natural gas analyses and isotopic compositions from published and unpublished sources of 1,282 gas samples from Kentucky, Maryland, New York, Ohio, Pennsylvania, Tennessee, Virginia, and West Virginia. The database includes field and reservoir names, well and State identification n
Authors
Yomayra A. Román Colón, Leslie F. Ruppert
Implications of scale-independent habitat specialization on persistence of a rare small mammal
We assessed the habitat use patterns of the Amargosa vole Microtus californicus scirpensis , an endangered rodent endemic to wetland vegetation along a 3.5 km stretch of the Amargosa River in the Mojave Desert, USA. Our goals were to: (1) quantify the vole’s abundance, occupancy rates and habitat selection patterns along gradients of vegetation cover and spatial scale; (2) identify the processes t
Authors
Michael Cleaver, Robert C. Klinger, Steven Anderson, Paul A. Maier, Jonathan Clark
Robust and resistant semivariogram modelling using a generalized bootstrap
The bootstrap is a computer-intensive resampling method for estimatingthe uncertainty of complex statistical models. We expand on anapplication of the bootstrap for inferring semivariogram parameters andtheir uncertainty. The model fitted to the median of the bootstrap distributionof the experimental semivariogram is proposed as an estimator ofthe semivariogram. The proposed application is not res
Authors
Ricardo A. Olea, E. Pardo-Iguzquiza, P. A. Dowd
Cokriging of compositional balances including a dimension reduction and retrieval of original units
Compositional data constitutes a special class of quantitative measurements involving parts of a whole. The sample space has an algebraic-geometric structure different from that of real-valued data. A subcomposition is a subset of all possible parts. When compositional data values include geographical locations, they are also regionalized variables. In the Earth sciences, geochemical analyses are
Authors
V. Pawlowsky-Glahn, J. J. Egozcue, Ricardo A. Olea, E Pardo-Igúzquiza
Evaluation of development options for Alaska North Slope viscous and heavy oil
Current estimates of discovered viscous and heavy oil in Alaska’s North Slope are 12 billion barrels of oil-in-place and 12–18 billion barrels of oil-in-place, respectively (see Appendix 1 for conversion to SI units). Since the early 1990s to the end of 2010, cumulative viscous oil production has amounted to 150 million barrels, and there has been no commercial production of heavy oil. During the
Authors
Emil D. Attanasi, Philip A. Freeman
Using ground and intact coal Samples to evaluate hydrocarbon fate during supercritical CO2 injection into coal beds: effects of particle size and coal moisture
To investigate the potential for mobilizing organic compounds from coal beds during geologic carbon dioxide (CO2) storage (sequestration), a series of solvent extractions using dichloromethane (DCM) and using supercritical CO2 (40 °C and 10 MPa) were conducted on a set of coal samples collected from Louisiana and Ohio. The coal samples studied range in rank from lignite A to high volatile A bitumi
Authors
Jon Kolak, Paul C. Hackley, Leslie F. Ruppert, Peter D. Warwick, Robert Burruss
The continuing medical mystery of Balkan Endemic Nephropathy
Balkan Endemic Nephropathy (BEN) is a disease of subtle onset and insidious progression that typically occurs between the 4th and 6th decade in long‐resident individuals in highly specific geographic locations of the Balkan region and affects 1 – 5% of the population. Though it does not follow typical Mendelian genetics, there is a familial pattern of occurrence. Although residents may live only a
Authors
Lynn M. Crosby, Calin A. Tatu, William H. Orem, Nikola Pavlovic MD PhD
Preliminary methodology to assess the national and regional impact of U.S. wind energy development on birds and bats
The U.S. Geological Survey has developed a methodology to assess the impacts of wind energy development on wildlife; it is a probabilistic, quantitative assessment methodology that can communicate to decision makers and the public the magnitude of these effects on species populations. The methodology is currently applicable to birds and bats, focuses primarily on the effects of collisions, and can
Authors
James E. Diffendorfer, Julie A. Beston, Matthew D. Merrill, Jessica C. Stanton, M.D. Corum, Scott R. Loss, Wayne E. Thogmartin, Douglas H. Johnson, Richard A. Erickson, Kevin W. Heist
Late Jurassic – early Cretaceous inversion of rift structures, and linkage of petroleum system elements across post-rift unconformity, U.S. Chukchi Shelf, arctic Alaska
Basin evolution of the U.S. Chukchi shelf involved multiple phases, including Late Devonian–Permian rifting, Permian–Early Jurassic sagging, Late Jurassic–Neocomian inversion, and Cretaceous–Cenozoic foreland-basin development. The focus of ongoing exploration is a petroleum system that includes sag-phase source rocks; inversion-phase reservoir rocks; structure spanning the rift, sag, and inversio
Authors
David W. Houseknecht, Christopher D. Connors
Hydrothermal, biogenic, and seawater components in metalliferous black shales of the Brooks Range, Alaska: Synsedimentary metal enrichment in a carbonate ramp setting
Trace element and Os isotope data for Lisburne Group metalliferous black shales of Middle Mississippian (early Chesterian) age in the Brooks Range of northern Alaska suggest that metals were sourced chiefly from local seawater (including biogenic detritus) but also from externally derived hydrothermal fluids. These black shales are interbedded with phosphorites and limestones in sequences 3 to 35
Authors
John F. Slack, David Selby, Julie A. Dumoulin