"Overview of calcite/opal deposits at or near the proposed high-level nuclear waste site, Yucca Mountain, Nevada, USA: pedogenic, hypogene, or both" by C.A. Hill, Y.V. Dublyansky, R.S. Harmon, C.M. Schluter
John S. Stuckless, Brian D. Marshall, D. T. Vaniman, W. W. Dudley, Zell E. Peterman, James B. Paces, J. F. Whelan, Emily M. Taylor, Richard M. Forester, D. W. O’Leary
1998, Environmental Geology (34) 70-78
No abstract available....
Transferability of habitat suitability criteria: Response to comment
Mary C. Freeman, Z.H. Bowen, K.D. Bovee
1998, North American Journal of Fisheries Management (19) 626-628
No abstract available. ...
The effect of canopy cover and seasonal change on host plant quality for the endangered Karner blue butterfly (Lycaeidesmelissasamuelis)
Ralph Grundel, Noel B. Pavlovic, Christina L. Sulzman
1998, Oecologia (114) 243-250
Larvae of the Karner blue butterfly, Lycaeidesmelissasamuelis, feed solely on wild lupine, Lupinusperennis, from the emergence to summer senescence of the plant. Wild lupine is most abundant in open areas but Karner blue females oviposit more frequently on lupines growing in moderate shade. Can differences in lupine quality between open and shaded...
Environmental toxicology and risk assessment: Seventh volume
Edward E. Little, Bruce M. Greenberg, Aaron J. DeLonay, editor(s)
1998, ASTM Special Technical Publication STP1333
This publication, Environmental Toxicology and Risk Assessment: Seventh Volume, contains papers presented at the Seventh Symposium on Toxicology and Risk Assessment: Ultraviolet Radiation and the Environment, held 7-9 April, 1997 in St. Louis, MO. The symposium, the 24th in a series on environmental toxicology, was sponsored by Committee E-47. Edward...
Estimating species richness: The importance of heterogeneity in species detectability
T. Boulinier, James D. Nichols, John R. Sauer, James E. Hines, K. H. Pollock
1998, Ecology (79) 1018-1028
Estimating species richness (i.e., the actual number of species present in a given area) is a basic objective of many field studies carried out in community ecology and is also of crucial concern when dealing with the conservation and management of biodiversity. In most studies, the total number of species...
Paleoclimate simulations for North America over the past 21,000 years: Features of the simulated climate and comparisons with paleoenvironmental data
P. J. Bartlein, K. H. Anderson, P. M. Anderson, M. E. Edwards, C. J. Mock, Robert S. Thompson, R. S. Webb, T. Webb III, C. Whitlock
1998, Quaternary Science Reviews (17) 549-585
Maps of upper-level and surface winds and of surface temperature and precipitation illustrate the results of a sequence of global paleoclimatic simulations spanning the past 21,000 yr for North America. We review (a) the large-scale features of circulation, temperature, and precipitation that appear in the simulations from the NCAR Community Climate...
More than one way to stretch: A tectonic model for extension along the plume track of the Yellowstone hotspot and adjacent Basin and Range Province
Tom Parsons, George A. Thompson, R.P. Smith
1998, Tectonics (17) 221-234
The eastern Snake River Plain of southern Idaho poses a paradoxical problem because it is nearly aseismic and unfaulted although it appears to be actively extending in a SW-NE direction continuously with the adjacent block-faulted Basin and Range Province. The plain represents the 100-km-wide track of the Yellowstone hotspot during...
The nature and timing of tectonism in the western facies terrane of Nevada and California; an outline of evidence and interpretations derived from geologic maps of key areas
Keith Brindley Ketner
1998, Professional Paper 1592
Along the outer miogeocline of Nevada and Southern California, lower Paleozoic siliceous sediments and basalt flows, the western facies terrane emerged in Late Devonian time and were deeply eroded; but structural evidence that this event, the Antler Orogeny, involved intense folding and thrust faulting is notably scarce. Almost all the...
Shot prevalences and diets of diving ducks five years after ban on use of lead shotshells at Catahoula Lake, Louisiana
Joseph L. Moore, William L. Hohman, Timothy M. Stark, Gary A. Weisbrich
1998, Journal of Wildlife Management (62) 564-569
Catahoula Lake, central Louisiana, is a RAMSAR Convention Wetland of International Importance and among the most important wintering and staging areas for waterfowl in North America. To evaluate exposure rates in Catahoula Lake waterfowl 5 years after a ban on use of lead shot, we determined the prevalence of ingested...
The effect of rearing methods on survival of reintroduced black-footed ferrets
E. Biggins, Jerry L. Godbey, Louis R. Hanebury, Bob Luce, Paul E. Marinari, Marc R. Matchett, Astrid Vargas
1998, Journal of Wildlife Management (62) 643-653
We estimated minimum survival rates for 282 young-of-year, captive-reared, black-footed ferrets (Mustela nigripes) reintroduced into prairie dog (Cynomys spp.) colonies in Wyoming, Montana, and South Dakota. We used night surveys with spotlights to locate ferrets about 1 month and 9 months postrelease. We modeled minimum survival rates using gender, year,...
USGS Mineral Resources Program: International Activities
S.J. Kropschot
1998, Fact Sheet 011-98
The USGS is the country's leading earth science organization. Since 1879, USGS scientists have gathered and analyzed data and disseminated the results of their research on the geology, cartography, hydrology, and, more recently biology, of every continent and ocean on Earth. Multidisciplinary research both in the United States and in...
USGS Mineral Resources Program: A National Perspective
S.J. Kropschot
1998, Fact Sheet 008-98
Minerals are chemical compounds abundant in the rocks, soil, and water around us and they have a profound impact on the lives of all beings. Naturally occurring minerals define the landscape in which we live. They affect our ecosystems, influence the availability of nutrients that support biota, impact the distribution...
Laccolith complexes of southeastern Utah: Time of emplacement and tectonic setting — Workshop proceedings
Jules D. Friedman, A. Curtis Huffman Jr.
1998, Bulletin 2158
No abstract available....
An outline of tectonic, igneous, and metamorphic events in the Goshute-Toano Range between Silver Zone Pass and White Horse Pass, Elko County, Nevada; a history of superposed contractional and extensional deformation
Keith Brindley Ketner, Warren C. Day, Maya Elrick, Myra K. Vaag, Robert A. Zimmerman, Lawrence W. Snee, Richard W. Saltus, John E. Repetski, Bruce R. Wardlaw, Michael E. Taylor, Anita G. Harris
1998, Professional Paper 1593
Seven kinds of fault-bounded tracts are described. One of the tracts provides a good example of Mesozoic contractional folding and faulting; six exemplify various aspects of Miocene extensional faulting. Massive landslide deposits resulting from Tertiary faulting are described. Mesozoic intrusive rocks and extensive exposures of Miocene volcanic rocks are described...
Nutrient transport in the major rivers and streams of the Puget Sound Basin, Washington
E. L. Inkpen, S.S. Embrey
1998, Fact Sheet 009-98
The Loma Prieta, California, earthquake of October 17, 1989: Liquefaction
Thomas L. Holzer, Jean Lou A. Chameau, G. Wayne Clough, J.D. Frost, Fernando A. M. Reyna, Robert E. Kayen, James K. Mitchell, Raymond B. Seed, Shin’ya Nishio, Maurice S. Power, John A. Egan, Scott E. Shewbridge, John deBecker, J. Richard Faris, Michael J. Bennett, Lelio H. Mejia, John D. Sims, C. D. Garvin, Roman D. Hryciw, Alan L. Kropp, Matthew Homolka, Wayne A. Charlie, Donald O. Doehring, Jeffrey P. Brislawn, Hassen Hassen, Kyle Rollins, Michael D. Mchood, Frederick J. Wentz Jr., William R. Dupre, John C. Tinsley III
Thomas L. Holzer, editor(s)
1998, Professional Paper 1551-B
The 1989 Loma Prieta earthquake both reconfirmed the vulnerability of areas in the San Francisco-Monterey Bay region to liquefaction and provided an opportunity to test methodologies for predicting liquefaction that have been developed since the mid-1970's. This vulnerability is documented in the chapter edited by O'Rourke and by the investigators...
Immunocyctochemical and ultrastructural identification of pituitary cell types in the protogynous Thalassoma duperrey during adult sexual ontogeny
I.S. Parhar, Y. Nagahama, E.G. Grau, R. M. Ross
1998, Zoological Science (15) 263-276
Protogynous wrasses (Thalassoma duperrey): females (F), primary males (PM) along with a few terminal-phase males (TM) and sex-changed males (SM), were used to characterize the topographical organization of the pituitary. In general, immunocytochemical and ultrastructural features of the adenohypo-physeal cell types of the saddleback wrasse pituitary resemble those of...
Determination of methane concentrations in shallow ground water and soil gas near Price, Utah
David L. Naftz, Heidi K. Hadley, Gilbert L. Hunt
1998, Fact Sheet 191-97
Methane gas, commonly referred to as "natural gas," is being produced from coal beds in central Utah (fig. 1) at an increasing rate since the early 1990s. The methane was generated over millions of years during the formation of coal in the area. Coal originates as plant matter that has...
Estimated decreases in dissolved-solids loads in four tributaries to the Colorado River in the Grand Valley, Colorado, 1973-96
David L. Butler
1998, Fact Sheet 159-97
Limits of retrospective power analysis
Patrick D. Gerard, David R. Smith, Govinda Weerakkody
1998, Journal of Wildlife Management (62) 801-807
Power analysis after study completion has been suggested to interpret study results. We present 3 methods of estimating power and discuss their limitations. We use simulation studies to show that estimated power can be biased, extremely variable, and severely bounded. We endorse the practice of computing power to detect a...
Anaerobic oxidation of [1,2-14C]Dichloroethene under Mn(IV)-reducing conditions
Paul M. Bradley, James Landmeyer, Richard S. Dinicola
1998, Applied and Environmental Microbiology (64) 1560-1562
Anaerobic oxidation of [1,2-14C]dichloroethene to14CO2 under Mn(IV)-reducing conditions was demonstrated. The results indicate that oxidative degradation of partially chlorinated solvents like dichloroethene can be significant even under anoxic conditions and demonstrate the potential importance of Mn(IV) reduction for remediation of chlorinated groundwater contaminants....
Comparison of NPDES program findings for selected cities in the United States
Kenneth D. Fossum, Dawn S. McDoniel
1998, Fact Sheet 192-97
The U.S. Environmental Protection Agency, under section 402 (p) of the Water Quality Act of 1987, has required municipalities with populations of more than 100,000 to obtain National Pollutant Discharge Elimination System (NPDES) permits for urban stormwater discharge. This regulation is intended to minimize pollutant loadings from urbanized areas and...
Changes in sediment and nutrient storage in three reservoirs in the lower Susquehanna River Basin and implications for the Chesapeake Bay
Michael J. Langland
1998, Fact Sheet 003-98
The Susquehanna River contributes nearly 50 percent of the freshwater discharge to the Chesapeake Bay in a year of normal or average streamflow. The river also transports the greatest amount of nutrients (estimates of nearly 66 percent of the nitrogen and 40 percent of the phosphorus load) from all nontidal...
Chapter B. The Loma Prieta, California, Earthquake of October 17, 1989 - Highway Systems
Mark Yashinsky
1998, Professional Paper 1552-B
This paper summarizes the impact of the Loma Prieta earthquake on highway systems. City streets, urban freeways, county roads, state routes, and the national highway system were all affected. There was damage to bridges, roads, tunnels, and other highway structures. The most serious damage occurred in the cities of San...
Low-flow water-quality characterization of the Gore Creek watershed, upper Colorado River basin, Colorado, August 1996
Kirby H. Wynn, Norman E. Spahr
1998, Fact Sheet 160-97
The Upper Colorado River Basin (UCOL) is one of 59 National Water-Quality Assessment (NAWQA) study units designed to assess the status and trends of the Nation?s water quality (Leahy and others, 1990). The UCOL study unit began operation in 1994, and surface-water-quality data collection at a network of 14 sites...
