Aluminum response in acid mitigation
K.H. Bennett, D.M. Downey
Robert D. Yearout, editor(s)
1994, Conference Paper, Proceedings : Eighth National Conference on Undergraduate Research 1994, University of North Carolina at Asheville
A vegetation classification logic-based on remote-sensing for use in global biogeochemical models
Steven W. Running, Thomas R. Loveland, L.L. Pierce
1994, Ambio (23) 77-81
A simple new classification logic for global vegetation is proposed. The critical features of this classification are that: it is based on simple, observable, unambiguous character- istics of vegetation structure that are important to ecosystem biogeochemistry and can be measured in the field for validation; the structural characteristics can...
Antarctica - The dynamic heart of it all
Alan K. Cooper, John C. Behrendt
1994, Report
Ground-water conditions in Utah, spring of 1994
D.V. Allen, R. B. Garrett, J.D. Sory, Carole B. Burden, M.R. Danner, L. R. Herbert, J.I. Steiger, M. D. ReMillard, B.A. Slaugh, R.L. Swenson, J.H. Howells, H.K. Christiansen, A.D. Bagley
1994, Cooperative Investigations Report 34
This is the thirty-first in a series of annual reports that describe ground-water conditions in Utah. Reports in this series, published cooperatively by the U.S. Geological Survey and the Utah Division of Water Resources, provide data to enable interested parties to keep abreast of changing ground-water conditions.This report, like the...
Toxicity of metal-contaminated sediments from the upper Clark Fork River, Montana, to aquatic invertebrates and fish in laboratory exposures
Nile E. Kemble, William G. Brumbaugh, Eric L. Brunson, F. James Dwyer, Christopher G. Ingersoll, Dave P. Monda, Daniel F. Woodward
1994, Environmental Toxicology and Chemistry (13) 1985-1997
Sediments of the upper Clark Fork River, from the Butte and Anaconda area to Milltown Reservoir (230 km downstream), are contaminated with As, Cd, Cu, Pb, Mn, and Zn primarily from mining activities. The toxicity of pore water from these sediments was determined using Daphnia magna (48-h exposure), rainbow trout (96-h...
Hydrology and potential for ground-water development in southeastern Tooele Valley and adjacent area in the Oquirrh Mountains, Tooele County, Utah
Bernard J. Stolp
1994, Technical Publication 107
Communities in southeastern Tooele Valley, Utah, are growing, and future demand for water is expected to increase. To prepare for this demand, local surface- and ground-water resources were evaluated.Average streamflow in Settlement, Middle, and Soldier Canyons is about 6,000, 2,100, and 3,900 acre-feet per year, respectively. The combined average perennial...
Hydrology of Cache Valley, Cache County, Utah, and adjacent part of Idaho, with emphasis on simulation of ground-water flow
Kim A. Kariya, D. Michael Roark, Karen M. Hanson
1994, Technical Publication 108
A hydrologic investigation of Cache Valley was done to better understand the ground-water system in unconsolidated basin-fill deposits and the interaction between ground water and surface water. Ground-water recharge occurs by infiltration of precipitation and unconsumed irrigation water, seepage from canals and streams, and subsurface inflow from adjacent consolidated rock...
Ground-water hydrology of Ogden Valley and surrounding area, eastern Weber County, UT, and simulation of ground-water flow in the Valley-fill aquifer system
Charles Avery
1994, Technical Publication 99
The ground-water resources in Ogden Valley, eastern Weber County, Utah, were the subject of a study to provide a better understanding of the hydrologic system in the valley and to estimate the hydrologic effects of future ground-water development. The study area included the drainage basin of the Ogden River upstream...
Use of saltwater and freshwater habitats by wintering redheads in southern Texas
Marc C. Woodin
1994, Hydrobiologia (279/280) 279-287
Behavioral data were gathered for redheads (Aythya americana Eyton) using saltwater and freshwater habitats in southern Texas, the northern portion of their major wintering range, in 1989–90. Saltwater and freshwater habitats were used for different purposes by wintering redheads. Approximately 41% of all redheads in saltwater habitats were feeding, while...
Ultraviolet-B radiation and the immune response of rainbow trout: Chapter 18
David L. Fabacher, Edward E. Little, S.B. Jones, E.C. DeFabo, L.J. Webber
Joanne S. Stolen, Thelma C. Fletcher, editor(s)
1994, Conference Paper, Modulators of fish immune response: Models for envrionmental toxicology/biomarkers, immunostimulators
As part of a larger study on global climate change and ozone depletion we are investigating the effects of ultraviolet-B (UVB) radiation on fishes. We conducted a number of experiments to explore the possible effects of UVB radiation on the immune response of juvenile rainbow trout Oncorhynchus mykiss. In one...
Use of benthic invertebrate community structure and the sediment quality triad to evaluate metal-contaminated sediment in the upper Clark Fork River, Montana
Timothy J. Canfield, Nile E. Kemble, William G. Brumbaugh, F. James Dwyer, Christopher G. Ingersoll, James F. Fairchild
1994, Environmental Toxicology and Chemistry (13) 1999-2012
The upper Clark Fork River, above Flathead River, is contaminated with large amounts of As, Cd, Cu, Pb, Mn, and Zn ores from past mining activities. The contaminated area extends from the Butte and Anaconda area to at least 230 km downstream to Milltown Reservoir. Both the upper Clark Fork...
Hydrologic hazards in the lower Drift River basin associated with the 1989-90 eruptions of Redoubt Volcano, Alaska
J.M. Dorava, D. F. Meyer
1994, Journal of Volcanology and Geothermal Research (62) 387-407
A survey of molecular marker compounds in sediments of San Francisco Bay, California
Frances D. Hostettler, John B. Rapp, Wilfred E. Geological Survey Pereira, Keith A. Kvenvolden
1994, Conference Paper, U.S. Geological Survey Toxic Substances Hydrology Program--Proceedings of the Technical Meeting, Colorado Springs, Colorado, September 20-24, 1993, Water-Resources Investigations Report 94-4015
An areal survey of surficial sediments in San Francisco Bay has been conducted to evaluate the presence of extractable organic compounds. Molecular marker compounds studied include hydrocarbons (PAH's), chlorinated pesticides, and other organic compounds that provide information on sources of organic input into the Bay. Fairly uniform source profiles are...
San Francisco Bay/delta regional monitoring program plankton and water quality pilot study, 1993, in 1993 Annual Report, San Francisco Estuary Regional Monitoring Program for Trace Substances: San Francisco Estuary Institute
Alan D. Jassby, James E. Cloern, J. Caffrey, B. Cole, J. Rudek
1994, Report, San Francisco Estuary Regional Monitoring Program for trace substances: 1993 annual report
The pilot program described here is motivated by a fundamental principle of the Regional Monitoring Strategy, namely “...the development of data that will provide information on status and trends in the Estuary.” As pointed out in the Strategy, knowledge of status and trends serves two primary purposes: (1) to become...
Hydrogeology and paths of flow in the carbonate bedrock aquifer, northwestern Indiana
Leslie D. Arihood
1994, Journal of the American Water Resources Association (30) 205-218
The U.S. Geological Survey (USGS) is assessing the ground.water resources of the carbonate bedrock aquifers in Indiana and Ohio as part of their Regional Aquifer Systems Analysis program. Part of this assessment includes the determination of unknown aspects of...
Ground-water flow patterns near South Bend, Indiana, and their implications for watershed management
L. D. Arihood
1994, Conference Paper
Why is the ocean salty?
Herbert Swenson
1994, Report
All water, even rain water, contains dissolved chemicals which scientists call "salts." But not all water tastes salty. Water is fresh or salty according to individual judgment, and in making this decision man is more convinced by his sense of taste than by a laboratory test. It is one's taste...
Lake Number, a quantitative indicator of mixing used to estimate changes in dissolved oxygen
Dale M. Robertson, Jorg Imberger
1994, International Review of Hydrobiology (79) 159-176
Lake Number, LN, values are shown to be quantitative indicators of deep mixing in lakes and reservoirs that can be used to estimate changes in deep water dissolved oxygen (DO) concentrations. LN is a dimensionless parameter defined as the ratio of the moments about the center of volume of the...
Statistical Techniques for Assessing water‐quality effects of BMPs
John F. Walker
1994, Journal of Irrigation and Drainage Engineering (120) 334-337
Little has been published on the effectiveness of various management practices in small rural lakes and streams at the watershed scale. In this study, statistical techniques were used to test for changes in water‐quality data from watersheds where best management practices (BMPs) were implemented. Reductions in data variability due to...
Cycling of mercury across the sediment-water interface in seepage lakes: Chapter 13, Advances in Chemistry
James P. Hurley, David P. Krabbenhoft, Christopher L. Babiarz, Anders Andren
1994, Book chapter, Environmental Chemistry of Lakes and Reservoirs
The magnitude and direction of Hg fluxes across the sediment—water interface were estimated by groundwater, dry bulk sediment, sediment pore water, sediment trap, and water-column analyses in two northern Wisconsin seepage lakes. Little Rock Lake (Treatment Basin) received no groundwater discharge during the study period (1988—1990), and Follette Lake received...
Wildlife habitat enhancement
A. W. Allen
1994, Book, Proceedings of the Soil and Water Conservation Society Meeting
No abstract available....
Molluscan evidence for a late Pleistocene sea-level lowstand from Monterey Bay, central California
Charles L. Powell II
1994, Veliger (37) 69-80
One hundred and twenty-three molluscan taxa are reported from four samples collected from a sea level lowstand deposit located between 100 m and 300 m below sea level in Monterey Bay, central California. Ecological interpretations of these mollusks suggest temperatures essentially equivalent to those from Puget Sound, Washington, to southern...
Construction aggregates
V.V. Tepordei
1994, Mining Engineering (46) 530-531
Part of a special section on industrial minerals in 1993. The 1993 production of construction aggregates increased 6.3 percent over the 1992 figure, to reach 2.01 Gt. This represents the highest estimated annual production of combined crushed stone and construction sand and gravel ever recorded in the U.S. The outlook...
Fluorspar
M. Miller
1994, Mining Engineering (46) 532-533
The U.S. exported approximately 52 kt of fluorspar in 1993. All reported production of fluorspar came from the Illinois mines of Elf Atochem. The U.S. consumed approximately 439 kt of fluorspar, according to preliminary U.S. Bureau of Mines figures. Fluorspar markets and industry developments are discussed....
Map adventures
U.S. Geological Survey
1994, Report
Map Adventures, with seven accompanying lessons, is appropriate for grades K-3. Students will learn basic concepts for visualizing objects from different perspectives and how to understand /and use maps....
