Numerical simulation of hydrothermal circulation in the Cascade Range, north-central Oregon
S. E. Ingebritsen, K.M. Paulson
1990, Conference Paper, Transactions - Geothermal Resources Council
Alternate conceptual models to explain near-surface heat-flow observations in the central Oregon Cascade Range involve (1) an extensive mid-crustal magmatic heat source underlying both the Quaternary arc and adjacent older rocks or (2) a narrower deep heat source which is flanked by a relatively shallow conductive heat-flow anomaly caused by...
Strategies and equipment for sampling suspended sediment and associated toxic chemicals in large rivers - with emphasis on the Mississippi River
R.H. Meade, H.H. Stevens Jr.
1990, Conference Paper, Science of the Total Environment
A Lagrangian strategy for sampling large rivers, which was developed and tested in the Orinoco and Amazon Rivers of South America during the early 1980s, is now being applied to the study of toxic chemicals in the Mississippi River. A series of 15-20 cross-sections of the Mississippi mainstem and its...
H2O grain size and the amount of dust in Mars' residual North polar cap
H. H. Kieffer
1990, Journal of Geophysical Research (95) 1481-1493
In Mars' north polar cap the probable composition of material residual from the annual condensation cycle is a mixture of fine dust and H2O grains of comparable size and abundance. However, metamorphism of such material will gradually lower its albedo by increasing the size of the H2O grains only. If...
Characterization of transport in an acidic and metal-rich mountain stream based on a lithium tracer injection and simulations of transient storage
Kenneth E. Bencala, Diane M. McKnight, Gary W. Zellweger
1990, Water Resources Research (26) 989-1000
Physical parameters characterizing solute transport in the Snake River (an acidic and metal-rich mountain stream near Montezuma, Colorado) were variable along a 5.2-km study reach. Stream cross-sectional area and volumetric inflow each varied by a factor of 3. Because of transient storage, the residence time of injected tracers in the...
Some hydrological impacts of climate change for the Delaware River Basin
Gary D. Tasker
1990, Conference Paper
To gain insight into possible impacts of climate change on water availability in the Delaware River, two models are linked. The first model is a monthly water balance model that converts the temperature and precipitation values generated by a random number generator to monthly streamflow values. The monthly streamflow values...
36C1 measurements and the hydrology of an acid injection site
G. Vourvopoulos, J. V. Brahana, E. Nolte, G. Korschinek, A. Priller, B. Dockhorn
1990, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms (52) 451-454
In an area in western Tennessee (United States), an industrial firm is injecting acidic (pH = 0.1) iron chloride into permeable zones of carbonate rocks at depths ranging from 1000 to 2200 m below land surface. Overlying the injection zone at a depth of approximately 500 m below land surface...
The relation of catastrophic flooding of Mangala Valles, Mars, to faulting of Memnonia Fossae and Tharsis volcanism
K. L. Tanaka, M. G. Chapman
1990, Journal of Geophysical Research Solid Earth (95) 14315-14323
Detailed stratigraphic relations indicate two coeval periods of catastrophic flooding and Tharsis centered faulting (producing Memnonia Fossae) in the Mangala Valles region of Mars. Major sequences of lava flows of the Tharsis Montes Formation and local, lobate plains flows were erupted during and between these channeling and faulting episodes. First,...
Sediment thickness in the southern Canada Basin
S. D. May, A. Grantz
1990, Marine Geology (93) 331-347
Multichannel seismic reflection data are used, in conjunction with deep crustal seismic refraction data, to estimate the thickness of sediments in the southern Canada Basin of the Arctic Ocean north of Alaska. The sediments are interpreted to be of Hauterivian (mid-Early Cretaceous)...
Interpretation of Na-K-Mg relations in geothermal waters
R.O. Fournier
1990, Conference Paper, Transactions - Geothermal Resources Council
When using a Na-K-???Mg triangular diagram as an aid in the interpretation of a geothermal water, the estimated temperature of last water-rock equilibration may change by as much as 50??C, depending on which of the many Na/K geothermometers one assumes is correct. A particular geothermometer may work well in one...
Denitrification in sediments from the hyporheic zone adjacent to a small forested stream
J.H. Duff, F.J. Triska
1990, Canadian Journal of Fisheries and Aquatic Sciences (47) 1140-1147
Denitrifying potentials increased with increasing distance from the stream channel. Dissolved oxygen was 100% of the concentration expected in equilibrium with the atmosphere in water obtained from monitoring wells immediately adjacent to the stream but was as low as 7% of the expected value in water 11.4 m inland. Both...
The US Geological Survey's National Mapping Division programs, products, and services that can support wetlands mapping
F.S. Baxter
1990, Biological Report - US Fish & Wildlife Service (90) 87-92
The US Geological Survey (USGS) programs can play an important role in support of President Bush's policy of no net loss of wetlands. A principal goal of USGS is to provide cartographic information that contributes to the wise management of the Nation's natural resources. This information consists of maps, cartographic...
Particle velocity interpolation in block-centered finite difference groundwater flow models
Daniel J. Goode
1990, Water Resources Research (26) 925-940
A block-centered, finite difference model of two-dimensional groundwater flow yields velocity values at the midpoints of interfaces between adjacent blocks. Method of characteristics, random walk and particle-tracking models of solute transport require velocities at arbitrary particle locations within the finite difference grid. Particle path lines and travel times are sensitive...
Evaluation of gases, condensates, and SO2 emissions from Augustine volcano, Alaska: the degassing of a Cl-rich volcanic system
R.B. Symonds, William I. Rose Jr., T.M. Gerlach, Paul H. Briggs, R.S. Harmon
1990, Bulletin of Volcanology (52) 355-374
After the March-April 1986 explosive eruption a comprehensive gas study at Augustine was undertaken in the summers of 1986 and 1987. Airborne COSPEC measurements indicate that passive SO2 emission rates declined exponentially during this period from 380??45 metric tons/day (T/D) on 7/24/86 to 27??6 T/D on 8/24/87. These data are...
Gas chromatographic separation of carbon dioxide and nitrous oxide for stable isotopic analysis of carbon dioxide
Kinga Revesz, Tyler B. Coplen
1990, Analytical Chemistry (62) 972-973
No abstract available....
Vapor-liquid phase equilibria of potassium chloride-water mixtures: Equation-of-state representation for KCl-H2O and NaCl-H2O
J.K. Hovey, Kenneth S. Pitzer, J.C. Tanger IV, J. L. Bischoff, R.J. Rosenbauer
1990, Journal of Physical Chemistry (94) 1175-1179
Measurements of isothermal vapor-liquid compositions for KCl-H2O as a function of pressure are reported. An equation of state, which was originally proposed by Pitzer and was improved and used by Tanger and Pitzer to fit the vapor-liquid coexistence surface for NaCl-H2O, has been used for representation of the KCl-H2O system...
A history of the Water Resources Division, U.S. Geological Survey; Volume V, July 1, 1947, to April 30, 1957
G. E. Ferguson (compiler)
1990, Report
This volume is the fifth in a series of chronological summaries of the activities and achievements of the Water Resources Division of the U.S. Geological Survey, but it is the first to be published as a public document. As explained in the Preface which follows, the first volume was published...
Study indicates feather meal can be a good supplement in trout diets
S. Hughes
1990, Water Farming Journal (5) 16-16
Ground-water resources of Honey Lake Valley, Lassen County, California, and Washoe County, Nevada
Elinor H. Handman, Clark J. Londquist, Douglas K. Maurer
1990, Water-Resources Investigations Report 90-4050
Honey Lake Valley is a 2,200 sq-mi, topographically closed basin about 35 miles northwest of Reno, Nevada. Unconsolidated basin-fill deposits on the valley floor and fractured volcanic rocks in northern and eastern uplands are the principal aquifers. In the study area, about 130,000 acre- ft of water recharges the aquifer...
Evaluation of ground-water recharge along the Gila River as a result of the flood of October 1983, in and near the Gila River Indian Reservation, Maricopa and Pinal Counties, Arizona
A.D. Konieczki, S. R. Anderson
1990, Water-Resources Investigations Report 89-4148
Flow in the Gila River from the flood of October 1983 infiltrated the stream channel and recharged the groundwater system along the Gila River floodplain from Ashurst-Hayden Dam to the confluence with the Salt River. Changes in groundwater levels from January 1983 to March 1984 confirmed the occurrence of recharge...
Ground-water levels, flow, and specific conductance in unconsolidated aquifers near Lake Erie, Cleveland to Conneaut, Ohio, September 1984
A. W. Coen III
1990, Water-Resources Investigations Report 89-4202
This report described ground-water levels, flow, and specific conductance in aquifer along the southern shore of Lake Erie from Cleveland to Conneaut, Ohio. The data were collected in September 1984 as part of the U.S Geological Survey's Northeast Glacial Buried Valley Regional Aquifer-System Analysis. The study area is about 60...
Status of the greater flamingo in Haiti
J. A. Ottenwalder, C.A. Woods, G. B. Rathbun, J.B. Thorbjarnarson
1990, Colonial Waterbirds (13) 115-123
Although flamingos in Haiti can still be found in most areas of their historical range, survey results indicate that numbers have declined drastically over the last 50 years. The coastal mangrove lagoons between Grand Saline and Gonaïves, the inland lakes of Étang Saumâtre and Trou Caïman, and Ile de la...
Potentiometric surface of the Edwards-Trinity aquifer system and contiguous hydraulically connected units, west-central Texas, winter, 1974-75
Eve L. Kuniansky
1990, Water-Resources Investigations Report 89-4208
The potentiometric surface of the Edwards-Trinity aquifer system and contiguous hydraulically connected units (from December 1974 through February 1975) was mapped as part of the Edwards-Trinity Regional Aquifer-System Analysis (RASA) project. A major goal of the Edwards-Trinity RASA project is to understand and describe the regional flow system (Bush, 1986)....
Ground-water quality near a scavenger-waste-disposal facility in Manorville, Suffolk County, New York 1984-85
M. P. Scorca
1990, Water-Resources Investigations Report 88-4074
No abstract available....
Concentrations of boron, molybdenum, and selenium in chinook salmon
Steven J. Hamilton, Raymond H. Wiedmeyer
1990, Transactions of the American Fisheries Society (119) 500-510
The concentrations of boron, molybdenum, and selenium in young chinook salmon Oncorhynchus tshawytscha were determined in three partial life cycle chronic toxicity studies. In each study, fish were exposed to a mixture of boron, molybdenum, selenate, and selenite in the proportions found in subsurface agricultural drainage water in the basin...
Residual currents and long-term transport
R. T. Cheng
1990, Book
Estuaries, bays, and contiguous coastal seas of the world are the most valuable and yet most vulnerable marine ecosystems. For centuries, society has placed enormous value on coastal areas for living, working, and recreation. In nearly all regions of the world, the largest population is distributed along the coastlines. The...
