Publications
Listed below are publication products directly associated with the Geology, Energy & Minerals Science Center:
Filter Total Items: 1170
The Spruce Head composite pluton: An example of mafic to silicic Salinian magmatism in coastal Maine, northern Appalachians
No abstract available.
Authors
Robert A. Ayuso, Joseph G. Arth
Environment of ore deposition in the creede mining district, San Juan Mountains, Colorado: Part V. Epithermal mineralization from fluid mixing in the OH vein
Detailed fluid inclusion studies on coarse-grained sphalerite from the OH vein, Creede, Colorado, have shown that the abrupt color changes between growth zones correspond to abrupt changes in the nature of the ore fluids. Within each growth zone, however, the composition of the fluids remained constant. The base of a distinctive orange-brown growth zone marks a sharp increase in both temperature a
Authors
D.O. Hayba
Multiphase groundwater flow near cooling plutons
We investigate groundwater flow near cooling plutons with a computer program that can model multiphase flow, temperatures up to 1200°C, thermal pressurization, and temperature‐dependent rock properties. A series of experiments examines the effects of host‐rock permeability, size and depth of pluton emplacement, single versus multiple intrusions, the influence of a caprock, and the impact of topogr
Authors
Daniel O. Hayba, Steven E. Ingebritsen
Long-term implications of new gas estimates
No abstract available.
Authors
Emil D. Attanasi, J. W. Schmoker
A science-based, watershed strategy to support effective remediation of abandoned mine lands
A U.S. Geological Survey Abandoned Mine Lands Initiative will develop a strategy for gathering and communicating the scientific information needed to formulate effective and cost-efficient remediation of abandoned mine lands. A watershed approach will identify, characterize, and remediate contaminated sites that have the most profound effect on water and ecosystem quality within a watershed. The I
Authors
Herbert T. Buxton, David A. Nimick, Paul Von Guerard, Stan E. Church, Ann G. Frazier, John R. Gray, Bruce R. Lipin, Sherman P. Marsh, Daniel F. Woodward, Briant A. Kimball, Susan E. Finger, Lee S. Ischinger, John C. Fordham, Martha S. Power, Christine M. Bunch, John Jones
Digital geologic map and mineral deposits of the Lake Superior region: Minnesota, Wisconsin, Michigan
No abstract available.
Authors
W. F. Cannon, T. H. Kress, D. M. Sutphin, G. B. Morey, Joyce Meints
Digital geologic and geophysical data of Bangladesh
This CD-ROM was compiled according to the methodology developed by the U.S. Geological Survey's World Energy Project. The goal of the project was to assess the undiscovered, technically recoverable oil and gas resources of the world and report these results by the year 2000. A worldwide series of geologic maps, published on CD-ROMs, was released by the U.S. Geological Survey's World Energy Project
Mineral resource assessment of the Custer National Forest in the Pryor Mountains, Carbon County, south-central Montana
No abstract available.
Authors
B. S. Van Gosen, A. B. Wilson, J. M. Hammarstrom, D. M. Kulik
Pb and O isotopic constraints on the source of granitic rocks from Cape Breton Island, Nova Scotia, Canada
Pb isotopic compositions of leached feldspars from twenty-three plutons in Cape Breton Island can be divided into two groups: anorthosite, syenite, and granite in the Blair River Complex, which have the least radiogenic compositions on the Island, and granitic rocks from terranes (Aspy, Bras d'Or, and Mira) to the south. Pb isotopic data for the Blair River Complex (206Pb/204Pb = 17.399-18.107; 20
Authors
Robert A. Ayuso, S. M. Barr, Frederick J. Longstaffe
The Pennsylvanian Fire Clay tonstein of the Appalachian basin—Its distribution, biostratigraphy, and mineralogy: Discussion and reply
No abstract available.
Authors
William Outerbridge, C. L. Rice, Harvey E. Belkin, T.W. Henry, Michael J. Kunk
Acid deposition sensitivity map
Project Summary:
The following digital product represents the Acid Deposition Sensitivity of the Southern Appalachian Assessment Area. Areas having various susceptibilities to acid deposition from air pollution are designated on a three tier ranking in the region of the Southern Appalachian Assessment (SAA). The assessment is being conducted by Federal agencies that are members of the Southern A
Authors
John D. Peper, Andrew E. Grosz, Thomas H. Kress, Thomas K. Collins, Gary B. Kappesser, Cindy M. Huber, James R. Webb
Coal geology of the Paleocene-Eocene Calvert Bluff Formation (Wilcox Group) and the Eocene Manning Formation (Jackson Group) in east-central Texas: Field trip guidebook for the Society for Organic Petrology, Twelfth Annual Meeting, The Woodlands, Texas, A
The Jackson and Wilcox Groups of eastern Texas (fig. 1) are the major lignite producing intervals in the Gulf Region. Within these groups, the major lignite-producing formations are the Paleocene-Eocene Calvert Bluff Formation (Wilcox) and the Eocene Manning Formation (Jackson). According to the Keystone Coal Industry Manual (Maclean Hunter Publishing Company, 1994), the Gulf Coast basin produces
Authors
Peter D. Warwick, Sharon S. Crowley