Dissimilatory reduction of selenate and arsenate in nature
Ron Oremland, J. Stolz
Derek R. Lovley, editor(s)
2000, Book chapter, Environmental microbe-metal interactions
This chapter discusses the biogeochemical reduction of selenate (Se(VI)) and arsenate (As(V)) when they enter anoxic environments and are used as electron acceptors for the oxidation of organic matter. These reductions are of a dissimilative nature and support the anaerobic growth of selected bacteria which conserve energy from this process....
Northeast Gulf of Mexico habitat mapping
L. R. Handley
2000, Book, Proceedings, eighteenth annual Gulf of Mexico Information Transfer Meeting, December 1998
No abstract available....
Distribution and origin of organic ligands in subsurface waters from sedimentary basins
Yousif K. Kharaka, P.D. Lundegard, T.H. Giordano
T.H. Giordano, R.M. Kettler, editor(s)
2000, Book chapter, Ore genesis and exploration: The roles of organic matter
No abstract available....
Nanofiltration membranes used to remove selenium and other minor elements from wastewater
Yousif K. Kharaka, James J. Thordsen, Roy A. Schroeder, J. G. Setmire
C. Young, editor(s)
2000, Book chapter, Minor elements 2000
No abstract available....
Major ground-water findings from the National Water-Quality Assessment Program (NAWQA) in Iowa
Stephen J. Kalkhoff
2000, Iowa Groundwater Quarterly (11) 31-32
No abstract available....
An overview of arsenic mass-poisoning in Bangladesh and West Bengal, India
D. Kirk Nordstrom
C. Young, editor(s)
2000, Book chapter, Minor elements 2000, processing and environmental aspects of As, Sb, Se, Te, and Bi
The largest mass poisoning in the world, perhaps in history, is happening in West Bengal, India, and Bangladesh. Many thousands of people suffer from arsenic skin disorders and are dying from cancer. About 19 million are estimated to be at risk. The discovery of the arsenic poisoning from tubewell drinking...
Using borehole wireline methods to delineate fracture flow paths in bedrock aquifers
F.L. Paillet
Hilary Inyang, Clifford J. Bruell, editor(s)
2000, Book chapter, Remediation in rock masses
No abstract available. ...
Three-dimensional finite-volume F-LLAM implementation
C.I. Heberton, T.F. Russell, Leonard F. Konikow, Michelle I. Hornberger
2000, Book chapter, Computational methods in water resources
No abstract available....
Thermodynamic properties of environmental arsenic species: Limitations and needs
D. Kirk Nordstrom
C. Young, editor(s)
2000, Book chapter, Minor elements 2000: Processing and environmental aspects of As, Sb, Se, Te, and Bi
No abstract available. ...
Diagenetic evolution of seamount phosphorite
Laura M. Benninger, James R. Hein
Craig R. Glenn, Liliane Prevot-Lucas, Jacques Lucas, editor(s)
2000, Book chapter, Marine authigenesis: from global to microbial
A discussion of geology, soils, wines, and history of the Napa Valley region
David G. Howell, Jonathan P. Swinchatt
2000, GSA Field Guides (2) 415-422
No abstract available....
CFC tracing of groundwater in fractured rock aided with 14C and 3H to identify water mixing
A.S. Talma, John L. Weaver, L.N. Plummer, Eurybiades Busenberg
2000, Book chapter, Groundwater: Past achievements and future challenges
No abstract available. ...
Neogene geomorphic and climatic evolution of the central San Juan Mountains, Colorado: K/Ar age and stable isotope data on supergene alunite and jarosite from the Creede mining district
Robert O. Rye, Philip M. Bethke, Marvin A. Lanphere, Thomas A. Steven
2000, GSA Special Papers (346) 95-103
K/Ar age determinations or supergene alunite and jarosite, formed during Neogene weathering of the epithermal silver and base-metal ores of the Creede mining district, have been combined with geologic evidence to estimate the timing of regional uplift of the southern Rocky Mountains and related canyon cutting. In addition, oxygen and...
Landslides and tsunamis
Christopher F. Waythomas, Alastair G. Dawson
Barbara H. Keating, Christopher F. Waythomas, Alastair G. Dawson, editor(s)
2000, Book, Pure and Applied Geophysics
The study of tsunamis has been shifting away from theoretical modeling of tsunami source, wave propagation and runup toward multidisciplinary investigations, with an emphasis on field studies. This collection of papers highlights the many approaches being utilized to study landslides and tsunamis....
Evolution of the Creede Caldera and its relation to mineralization in the Creede mining district, Colorado
Paul B. Barton, Robert O. Rye, Philip M. Bethke
2000, GSA Special Papers (346) 301-326
At 25 Ma a major epithermal silver and base metal deposit formed in rhyolitic welded tuff near Creede, Colorado. Nearly 24000 metric tons of silver, appreciable lead, and small amounts of zinc, copper, and gold, have been produced from large, crustified veins under Bachelor and Bulldog Mountains north and northwest...
SHRIMP U-Pb zircon ages for Big Creek gneiss, Wyoming and Boulder Creek batholith, Colorado: Implications for timing of Paleoproterozoic accretion of the northern Colorado province
Wayne R. Premo, C. Mark Fanning
2000, Rocky Mountain Geology (35) 31-50
Sensitive, high-resolution, ion microprobe (SHRIMP) U-Pb zircon ages from a sample of the high-grade, hornblende-feldspathic Big Creek gneiss of the southeastern Sierra Madre, along with samples of a quartz monzonitic phase of the Boulder Creek batholith, help define timing of three major Paleoproterozoic thermo-tectonic events within the northern Colorado province...
Hydrologic and geologic characteristics of the Yucca Mountain site relevant to the performance of a potential repository; Day 2, Beatty to Yucca Mountain; Stop 7B, Secondary minerals and paleohydrologic implications
Leonid A. Neymark, James B. Paces, Zell E. Peterman, B. M. Marshall, Joseph F. Whelan
2000, GSA Field Guides (2) 401-402
No abstract available. ...
Direct measurement of turbulence properties by a BB-ADCP in bottom boundary layer
R. T. Cheng, C. #NAME? Ling, J. W. Gartner
2000, Book chapter, Interactions between estuaries, coastal seas and shelf seas
No abstract available....
Relationship of Eastern hemlock (Tsuga canadensis) to the ecology of small streams in Delaware Water Gap National Recreation Area
David P. Lemarie, John A. Young, Craig D. Snyder, Robert M. Ross, David Smith, Randy M. Bennett
2000, General Technical Report NE-267
Hemlock ravines in Delaware Water Gap National Recreation Area (DEWA) are highly valued because of their distinctive aesthetic, recreational and ecological qualities. We conducted a comparative study designed to determine the potential long-term consequences to aquatic communities of the suspected transition from hemlock-dominated forests to mixed hardwood forests as a result of hemlock woolly adelgid (HWA; Adelges...
Digital environmental atlas of Georgia
S.J. Alhadeff, J.W. Musser, A.C. Sandercock, T.R. Dyar
2000, Georgia Geologic Survey Publication CD-1
No abstract available....
The study of humic substances--In search of a paradigm
Robert L. Wershaw
G. Davis, E.A. Ghabbour, editor(s)
2000, Book chapter, Humic substances: Versatile components of plants, soils and water
No abstract available. ...
Selenium
Ronald S. Oremland
J. Ledenberg, editor(s)
2000, Book chapter, Encyclopedia of microbiology
No abstract available. ...
Volcanism and ice interactions on Earth and Mars
Mary G. Chapman, Carlton C. Allen, Magnus T. Gudmundsson, Virginia C. Gulick, Sveinn P. Jakobsson, Baerbel K. Lucchitta, Ian P. Skilling, Richard B. Waitt
2000, Book chapter, Environmental effects on volcanic eruptions: From deep oceans to deep space
Volcano/ice interactions produce meltwater. Meltwater can enter the groundwater cycle and under the influence of hydrothermal systems, it can be later discharged to form channels and valleys or cycled upward to melt permafrost. Water or ice-saturated ground can erupt into phreatic craters when covered by lava. Violent mixing of meltwater...
Modeling surface-subsurface hydrological interactions
Aaron I. Packman, Kenneth E. Bencala
Jeremy B. Jones, Patrick J. Mulholland, editor(s)
2000, Book chapter, Streams and ground waters
Emergent biological patterns and surface-subsurface interactions at landscape scales
C. M. Pringle, F.J. Triska
Jeremy B. Jones, Patrick J. Mulholland, editor(s)
2000, Book chapter, Streams and ground waters
In this chapter, we focus on emergent biological patterns in riverine ecosystems at landscape scales resulting from surface-subsurface water interaction. Our objectives are to examine (1) how the balance of physical and chemical factors on the "natural" geologic template affects biological patterns, (2) how natural hydrothermal systems can be used...
