Alternative Sources of Energy - An Introduction to Fuel Cells
E.A. Merewether
2003, Bulletin 2179
Fuel cells are important future sources of electrical power and could contribute to a reduction in the amount of petroleum imported by the United States. They are electrochemical devices similar to a battery and consist of a container, an anode, a cathode, catalysts, an intervening electrolyte, and an attached electrical circuit. In...
Chapter D: With or Without Salt-a Comparison of Marine and Continental-Lacustrine Diatomite Deposits
Phillip R. Moyle, Thomas P. Dolley
2003, Bulletin 2209-D
Diatoms in sedimentary deposits of marine and continental, especially lacustrine, origin have similar nutrient (for example, phosphate, nitrate, and silica) and light requirements; however, their geologic ranges and physiographic environments vary. Marine diatoms range in age from Early Cretaceous to Holocene, and continental diatoms range in age from Eocene to...
Chapter C: Hydrothermal Enrichment of Gallium in Zones of Advanced Argillic Alteration-Examples from the Paradise Peak and McDermitt Ore Deposits, Nevada
James J. Rytuba, David A. John, Andrea Foster, Steven D. Ludington, Boris Kotlyar
2003, Bulletin 2209-C
Gallium is produced as a byproduct from bauxite and zinc sulfide ores and rarely from primary Ga ores. High Ga contents (>60 ppm) can occur in zones of advanced argillic alteration consisting of alunite+kaolinite+quartz associated with quartz-alunite (high sulfidation Au-Ag) deposits. In a magmatic-hydrothermal environment, the zones of advanced argillic...
Regional geologic setting of Late Cenozoic lacustrine diatomite deposits, Great Basin and surrounding region: Overview and plans for investigation
Alan R. Wallace
2003, Bulletin 2209-B
Freshwater diatomite deposits are present in all of the Western United States, including the Great Basin and surrounding regions. These deposits are important domestic sources of diatomite, and a better understanding of their formation and geologic settings may aid diatomite exploration and land-use management. Diatomite deposits in the Great Basin are the products...
Biogeochemical and biochemical pathway investigations of cadmium in subarctic ecosystems using a cadmium accumulator species (willow)
L. P. Gough, R. F. Sanzolone, J.G. Crock, A. L. Foster, P. J. Lamothe, C. M. Ager, C. A. Gent
2002, Bulletin 2191-4
This study focuses on a portion of the Fortymile River and Goodpaster River watersheds (fig. 1) in the Eagle and Big Delta 1:250,000-scale quadrangles, respectively....
Argon thermochronology of mineral deposits; a review of analytical methods, formulations, and selected applications
Lawrence W. Snee
2002, Bulletin 2194
40Ar/39Ar geochronology is an experimentally robust and versatile method for constraining time and temperature in geologic processes. The argon method is the most broadly applied in mineral-deposit studies. Standard analytical methods and formulations exist, making the fundamentals of the method well defined. A variety of graphical representations exist for evaluating argon data. A...
Petroleum geology and total petroleum systems of the Widyan Basin and Interior Platform of Saudi Arabia and Iraq
James E. Fox, Thomas S. Ahlbrandt
2002, Bulletin 2202-E
Two total petroleum systems are associated with the Widyan Basin - Interior Platform Province in northern Saudi Arabia and western Iraq. In the Paleozoic Qusaiba/Akkas/Abba/ Mudawwara Total Petroleum System, which consists of one assessment unit - the Horst/Graben-Related Oil and Gas Assessment Unit - high-gravity, low-sulfur crude oil, as well...
Rocks and geology in the San Francisco Bay region
Philip W. Stoffer
2002, Bulletin 2195
The landscape of the San Francisco Bay region is host to a greater variety of rocks than most other regions in the United States. This introductory guide provides illustrated descriptions of 46 common and important varieties of igneous, sedimentary, and metamorphic rock found in the region. Rock types are described...
Epigenetic lead, zinc, silver, antimony, tin, and gold veins in Boulder Basin, Blaine and Custer Counties, Idaho: Potential for economic tin mineralization
Michael E. Ratchford
2002, Bulletin 2064-JJ
Boulder Basin is in a northwest-trending belt of allochthonous Paleozoic rocks in the Boulder Mountains of central Idaho. Regional Tertiary extension resulted in widespread normal faulting and coeval emplacement of shallow-level intrusions and extrusive rocks of the Challis Volcanic Group. Epigenetic lead-zinc-silver-antimony-tin-gold vein deposits formed during Tertiary extension and are...
Madbi Amran/Qishn total petroleum system of the Ma'Rib-Al Jawf/Shabwah, and Masila-Jeza basins, Yemen
Thomas S. Ahlbrandt
2002, Bulletin 2202-G
Since the first discovery of petroleum in Yemen in 1984, several recent advances have been made in the understanding of that countrys geologic history and petroleum systems. The total petroleum resource endowment for the combined petroleum provinces within Yemen, as estimated in the recent U.S. Geological Survey world assessment, ranks...
Reconnaissance study of the geology of U.S. vermiculite deposits: Are asbestos minerals common constituents?
Bradley S. Van Gosen, Heather Lowers, Alfred L. Bush, Gregory P. Meeker, Geoffrey S. Plumlee, Isabelle K. Brownfield, Stephen J. Sutley
2002, Bulletin 2192
Unusually high incidences of asbestos-related mortality and respiratory disease in the small town of Libby, Montana, have been linked to amphibole mineral fibers intergrown with the vermiculite deposits mined and milled near the town from 1923 to 1990. A study conducted by the U.S. Agency for Toxic Substances and Disease...
Response plan for volcano hazards in the Long Valley Caldera and Mono Craters region, California
David P. Hill, Daniel Dzurisin, William L. Ellsworth, Elliot T. Endo, D. L. Galloway, Terry M. Gerlach, Malcolm S.J. Johnston, John O. Langbein, Ken A. McGee, C. Dan Miller, David Oppenheimer, Michael L. Sorey
2002, Bulletin 2185
No abstract available....
Is there a basin-centered gas accumulation in Cotton Valley group sandstones, Gulf Coast basin, U.S.A.?
Charles E. Bartberger, Thaddeus S. Dyman, Steven M. Condon
2002, Bulletin 2184-D
The U.S. Geological Survey (USGS), in cooperation with the U.S. Department of Energy, is reevaluating the resource potential of selected domestic basin-centered gas accumulations. Basin-centered gas accumulations are characterized by presence of gas in extensive low-permeability (tight) reservoirs in which conventional seals and trapping mechanisms are absent, abnormally high or...
A summary of the U.S. Geological Survey 1999 resource assessment of selected coal zones in the Northern Rocky Mountains and Great Plains region, Wyoming, Montana, and North Dakota
M.S. Ellis, D. J. Nichols
2002, Bulletin 2189
In 1999, 1,100 million short tons of coal were produced in the United States, 38 percent from the Northern Rocky Mountains and Great Plains region. This coal has low ash content, and sulfur content is in compliance with Clean Air Act standards (U.S. Statutes at Large, 1990).The National Coal Resource...
Joint inversion of acoustic and resistivity data for the estimation of gas hydrate concentration
Myung W. Lee
2002, Bulletin 2190
Downhole log measurements, such as acoustic or electrical resistivity logs, are frequently used to estimate in situ gas hydrate concentrations in the pore space of sedimentary rocks. Usually the gas hydrate concentration is estimated separately based on each log measurement. However, measurements are related to each other through the gas...
Pathways of metal transfer from mineralized sources to biorecptors: A synthesis of the Mineral Resources Program's past environmental studies in the Western United States and future research directions
Laurie S. Balistrieri, Lisa L. Stillings, editor(s)
2002, Bulletin 2191
No abstract available....
Geology and natural history of the San Francisco Bay area: A field-trip guidebook
Philip W. Stoffer, Leslie C. Gordon, editor(s)
2001, Bulletin 2188
A National Association of Geoscience Teachers Far Western Section (NAGT-FWS) field conference is an ideal forum for learning about the geology and natural history of the San Francisco Bay area. We visit classic field sites, renew old friendships, and make new ones. This collection of papers includes field guides and...
Total petroleum systems of the Pelagian Province, Tunisia, Libya, Italy, and Malta; the Bou Dabbous, Tertiary and Jurassic-Cretaceous composite
T. R. Klett
2001, Bulletin 2202-D
Undiscovered conventional oil and gas resources were assessed within total petroleum systems of the Pelagian Province (2048) as part of the U.S. Geological Survey World Petroleum Assessment 2000. The Pelagian Province is located mainly in eastern Tunisia and northwestern Libya. Small portions of the province extend into Malta and offshore Italy. Although...
Probabilistic method for estimating future growth of oil and gas reserves
Robert A. Crovelli, James W. Schmoker
2001, Bulletin 2172-C
Geologic field-trip guide to Steens Mountain Loop Road, Harney County, Oregon
J. G. Evans, T.M. Geisler
2001, Bulletin 2183
Petroleum geology and resources of the Dnieper-Donets Basin, Ukraine and Russia
Gregory F. Ulmishek
2001, Bulletin 2201-E
The Dnieper-Donets basin is almost entirely in Ukraine, and it is the principal producer of hydrocarbons in that country. A small southeastern part of the basin is in Russia. The basin is bounded by the Voronezh high of the Russian craton to the northeast and by the Ukrainian shield to...
Petroleum geology and resources of the Nepa-Botuoba High, Angara-Lena Terrace, and Cis-Patom Foredeep, southeastern Siberian Craton, Russia
Gregory F. Ulmishek
2001, Bulletin 2201-C
Three structural provinces of this report, the Nepa-Botuoba High, the Angara-Lena Terrace, and the Cis-Patom Foredeep, occupy the southeastern part of the Siberian craton northwest of the Baikal-Patom folded region (fig. 1). The provinces are similar in many aspects of their history of development, stratigraphic composition, and petroleum geology characteristics....
Petroleum geology and resources of the Baykit High province, East Siberia, Russia
Gregory F. Ulmishek
2001, Bulletin 2201-F
The Baykit High province consists of two principal structural units?the Baykit regional high in the west, which occupies most of the province, and the Katanga structural saddle in the east. The province is on the western margin of the Siberian craton east of theYenisey Ridge foldbelt. The province is an exploration...
Variations in river flow to the Gulf of Mexico: implications for paleoenvironmental studies of Gulf of Mexico marine sediments
Richard Z. Poore, Jessica Darling, Harry J. Dowsett, Liana Wright
2001, Bulletin 2187
Analyses of selected gaging station records from the Mississippi River and Rio Grande show that variations in discharge of these rivers into the Gulf of Mexico reflect major flood events and regional-scale drought intervals known from the historical record. Variations in Rio Grande discharge show good correlation with El Ni?o/Southern...
Changing perceptions of United States natural-gas resources as shown by successive U. S. Department of the Interior assessments
James W. Schmoker, Thaddeus S. Dyman
2001, Bulletin 2172-B
Trends in four successive estimates of United States technically recoverable natural gas resources are examined in this report. The effective dates of these assessments were January 1 of 1975, 1980, 1987, and 1994. The 1994 estimate of the U.S. total gas endowment increased significantly over the previous three estimates, indicating that the technically...
