Design and operation of a system to monitor sediment deposition for protection of an endangered mussel
Michael S. Griffin, David S. Mueller
1994, Conference Paper, Proceedings of the Symposium on Fundamentals and Advancements in Hydraulic Measurements and Experimentation
The USGS, in cooperation with the COE, has designed and installed a system to continuously monitor changes in elevation of the river bed over the mussel bed located downstream of the Olmsted Locks and Dam project. The installed system utilizes a multi-transducer acoustic ranging system to provide river bed elevation...
Reduction of nonpoint source contamination of surface water and groundwater by starch encapsulation of herbicides
M. S. Mills, E.M. Thurman
1994, Environmental Science & Technology (28) 73-79
The loss of the preemergent herbicide atrazine in surface runoff from experimental field plots growing corn (Zea mays L.) was significantly reduced using a starchencapsulated formulation versus a conventional powdered formulation. Field edge losses of starch-encapsulated atrazine were described as following a Rayleigh distribution totaling 1.8% of applied herbicide compared...
Lithologic description of sediment cores from Buck Lake, Klamath County, Oregon
D.P. Adam, Hugh J. Rieck, M.L. McGann, K.H. Schiller, A.M. Sarna-Wojcicki
1994, Open-File Report 94-12
Petrology of gabbroic xenoliths in 1960 Kilauea basalt: crystalline remnants of prior (1955) magmatism
R.V. Fodor, R. B. Moore
1994, Bulletin of Volcanology (56) 62-74
The 1960 Kapoho lavas of Kilauea's east rift zone contain 1-10 cm xenoliths of olivine gabbro, olivine gabbro-norite, and gabbro norite. Textures are poikilitic (ol+sp+cpx in pl) and intergranular (cpx+pl??ol??opx). Poikilitic xenoliths, which we interpret as cumulates, have the most primitive mineral compositions, Fo82.5, cpx Mg# 86.5, and An80.5. Many...
Formation and transport of deethylatrazine and deisopropylatrazine in surface water
E.M. Thurman, M. T. Meyer, M. S. Mills, L.R. Zimmerman, C. A. Perry, D. A. Goolsby
1994, Environmental Science & Technology (28) 2267-2277
No abstract available. ...
Mobilization of beryllium in the sedimentary column at convergent margins
C.-F. You, J.D. Morris, J. M. Gieskes, R. Rosenbauer, S.H. Zheng, X. Xu, T.-L. Ku, J. L. Bischoff
1994, Geochimica et Cosmochimica Acta (58) 4887-4897
Studies of Be distributions in subduction zone sediments will help to understand questions regarding the enrichments of cosmogenic Be-10 in arc volcanic rocks. Analyses of Be-10 and Be-9 in sediments of Ocean Drilling Program Site 808, Nankai Trough and Be-9 in porewaters of Site 808 and Sites 671 and 672,...
Population structure of eastern oysters (Crassostrea virginica) inhabiting the Laguna Madre, Texas, and adjacent bay systems
T.L. King, R. Ward, E.G. Zimmerman
1994, Canadian Journal of Fisheries and Aquatic Sciences (51) 215-222
Interactive regional regression approach to estimating flood quantiles
Gary D. Tasker, Raymond M. Slade
1994, Conference Paper, Proceedings of the 21st Annual Conference on Water Policy and
In Texas, a computer program has been developed which will estimate flood quantiles for an ungaged site based on data from gaging stations with similar watershed characteristics. The user enters site location and watershed characteristics for an ungaged site and the program selects, from a data base of gaging stations,...
Effect of subatmospheric pressure on the performance of an automated packed-column nitrogen desorption system
Barnaby J. Watten, W. J. Ridge, Vincent A. Mudrak
1994, Aquacultural Engineering (13) 41-58
A portable vacuum degasser was developed to satisfy seasonal hatchery pretreatment needs. Dissolved-gas pressures in water exiting a packed column were regulated automatically with a unique feedback control loop incorporating a gasometer, pressure transducer, electronic (PID) controller and an electrically actuated pump discharge valve. The flow capacity of the system...
Anatexis, hybridization and the modification of ancient crust: Mesozoic plutonism in the Old Woman Mountains area, California
C. F. Miller, J. L. Wooden
1994, LITHOS (32) 111-133
A compositionally expanded array of granitic (s.l.) magmas intruded the > 2 Ga crust of the Old Woman Mountains area between 160 and 70 Ma. These magmas were emplaced near the eastern (inland) edge of the Jurassic/Cretaceous arcs of western North America, in an area where magma flux, especially during...
Bioaccumulation of selenium from natural geologic sources in western states and its potential consequences
T. S. Presser, M. A. Sylvester, W. H. Low
1994, Environmental Management (18) 423-436
Ecological impacts of water-quality problems have developed in the western United States resulting from the disposal of seleniferous agricultural wastewater in wetland areas. Overt effects of selenium toxicosis occurred at five areas where deformities of wild aquatic birds were similar to those first observed at Kesterson National Wildlife Refuge in...
Development of saline seeps in Southwestern United States
Kenneth S. Johnson
Anon, editor(s)
1994, Conference Paper, National Conference Publication - Institution of Engineers, Australia
Saline seeps are an increasingly serious problem in semi-arid regions of the southwestern United States. They result when excessive recharge of the shallow ground water in soils raises the water table locally to within one meter of the land surface, and the salinity of the shallow water is increased through...
Increased pressure from rising bubbles as a mechanism for remotely triggered seismicity
A. T. Linde, I. S. Sacks, M.J.S. Johnston, D.P. Hill, R.G. Bilham
1994, Nature (371) 408-410
Aftershocks of large earthquakes tend to occur close to the main rupture zone, and can be used to constrain its dimensions. But following the 1992 Landers earthquake (magnitude M(w) = 7.3) in southern California, many aftershocks were reported in areas remote from the mainshock. Intriguingly, this remote seismicity occurred in...
Remote sensing and airborne geophysics in the assessment of natural aggregate resources
D. H. Knepper Jr., W. H. Langer, S.H. Miller
1994, Open-File Report 94-158
Natural aggregate made from crushed stone and deposits of sand and gravel is a vital element of the construction industry in the United States. Although natural aggregate is a high volume/low value commodity that is relatively abundant, new sources of aggregate are becoming increasingly difficult to find and develop because of rigid industry...
Water resources data, Alabama, water year 1993
J. L. Pearman, F.C. Sedberry, V.E. Stricklin, P.W. Cole
1994, Water Data Report AL-93-1
The Water Resources Division of the U.S. Geological Survey, in cooperation with State and Federal agencies, obtains a large amount of data pertaining to the water resources of Alabama each water year. These data, accumulated during many water years, constitute a valuable data base for developing an improved understanding of...
Proceedings of the U.S. Geological Survey workshop on the application of borehole geophysics to ground-water investigations, Albany, New York, June 2-4, 1992
Frederick L. Paillet, John H. Williams
1994, Water-Resources Investigations Report 94-4103
No abstract available. ...
Simulation of unsteady flow in the Roanoke River from near Oak City to Williamston, North Carolina
A.G. Strickland, Jerad D. Bales
1994, Water Supply Paper 2408-A
A one-dimensional, unsteady-flow model was calibrated, validated, and applied to a 30.4-mile reach of the Roanoke River between State Highway 42-11 bridge near Oak City (river mile 67.0) and the U.S. Highway 17-13 bridge at Williamston (river mile 36.6) North Carolina. The model was calibrated and validated for flows ranging...
Water resources data, South Carolina, water year 1993
C.S. Bennett, T.W. Cooney, K.H. Jones, P.A. Drewes
1994, Water Data Report SC-93-1
Water Resources data for the 1993 water year for South Carolina consists of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and levels of ground-water wells. This volume contains records for water discharge at 121 gaging stations, stage only at 39 gaging...
South Cascade Glacier, Washington; hydrologic and meteorological data, 1957-67
M.E. Sullivan
1994, Open-File Report 94-77
Historic hydrologic and meteorological data are compiled for South Cascade Glacier, Washington, USA, a site selected by the U.S. Geological Survey for long-term study of the response of a glacier to climate change and its effect on water resources. The data consist of stream discharge and meteorological data, including precipitation,...
Herbicides and nitrate in near-surface aquifers in the midcontinental United States, 1991
Dana W. Kolpin, Michael R. Burkart, E. Michael Thurman
1994, Water Supply Paper 2413
The occurrence and distribution of selected herbicides, atrazine metabolites, and nitrate were determined for near-surface aquifers (within 50 feet of land surface) in the corn- and soybean-producing region of the midcontinental United States. The study region included all or parts of Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North...
Water resources data, Pennsylvania, water year 1993. Volume 2. Susquehanna and Potomac River basins
R.R. Durlin, W.P. Schaffstall
1994, Water Data Report PA-93-2
Water resources data for the 1993 water year for Pennsylvania consist of records of discharge and water quality of streams; contents and elevations of lakes and reservoirs; and water levels and water quality of ground-water wells. This report, Volume 2, includes records from the Susquehanna and Potomac River Basins. Specifically,...
Water resources data, Pennsylvania, water year 1993: Volume 1. Delaware River Basin
R. Campbell, R.L. Druther, P. Moleski
1994, Water Data Report PA-93-1
Water resources dan for the 1993 waxer year for Pennsylvania consist of records of discharge and waxer quality of streams; contents and elevations of lakes and reservoirs; and waxer levels and waxer quality of ground-water wells. This report, Volume 1, includes records from the Delaware River Basin. Specifically, Volume 1...
Geohydrology and simulated ground-water flow in an irrigated area of northwestern Indiana
L. D. Arihood, M.E. Basch
1994, Water-Resources Investigations Report 92-4046
Water for irrigation in parts of Newton and Jasper Counties and adjacent areas of northwestern Indiana is pumped mostly from the carbonate- bedrock aquifer that underlies glacial drift. To help in managing the ground-water resources of the area, a three-dimensional ground-water model was developed and tested with hydrologic data collected...
Saltwater movement in the upper Floridan aquifer beneath Port Royal Sound, South Carolina
Barry S. Smith
1994, Water Supply Paper 2421
Freshwater for Hilton Head Island, South Carolina, is supplied by withdrawals from the Upper Floridan aquifer. Freshwater for the nearby city of Savannah, Georgia, and for the industry that has grown adjacent to the city, has also been supplied, in part, by withdrawal from the Upper Floridan aquifer since 1885....
Ground-water-quality assessment of the Central Oklahoma Aquifer, Oklahoma; analysis of available water-quality data through 1987
David L. Parkhurst, Scott C. Christenson, Jamie L. Schlottmann
1994, Water Supply Paper 2357-B
No abstract available....
