Backflushing Filters for Field Processing of Water Samples Prior to Trace-Element Analyses
V. C. Kennedy, E. A. Jenne, J.M. Burchard
1976, Water-Resources Investigations Report 76-126
A portable unit is described for filtering water samples at field sites in such a manner that the filtrate is suitable for analysis not only of major constituents but also of trace elments at the mocrogram-per-liter level. A battery-operated peristaltic pump forces the water sample through medical-grade silicone tubing into...
Water supply and waste disposal, Culebra, Puerto Rico
Donald George Jordan, Bruce K. Gilbert
1976, Water-Resources Investigations Report 76-3
No abstract available. ...
Land use and land cover maps for Sandy Springs, Georgia
Water Resources Division, U.S. Geological Survey
1976, Open-File Report 76-144
Land use and land cover maps for Snellville, Georgia
Water Resources Division, U.S. Geological Survey
1976, Open-File Report 76-135
Atlas of urban and regional change, greater Pittsburgh region, Pennsylvania; A. Land use (Level II), 1973
Water Resources Division, U.S. Geological Survey
1976, Open-File Report 75-28-A
Topographic map of the Cydonia region of Mars
Water Resources Division, U.S. Geological Survey
1976, IMAP 988
Digital model for simulated effects of ground-water pumping in the Hueco Bolson, El Paso Area, Texas, New Mexico, and Mexico
W.R. Meyer
1976, Water-Resources Investigations Report 75-58
The Hueco Bolson provides a substantial part of the municipal and industrial water supply of the El Paso area of Texas, New Mexico, and Mexico. Although the supply 6f fresh ground water in the bolson is large, about 10.6 million acre-feet (13,070 hm3) in 1973 in the Texas part of...
Geohydrologic maps of the Potomac-Raritan-Magothy aquifer system in the New Jersey Coastal Plain
Harold E. Gill, George M. Farlekas
1976, Hydrologic Atlas 557
The Potomac Group and the Raritan and Magothy Formations of late Early to early Late Cretaceous age form an aquifer system consisting chiefly of interlayered beds of quartz sand, silt, and clay. The aquifer system is the most heavily pumped in New Jersey and contains fresh water over an area...
Aeromagnetic map of the Jonesboro region, Arkansas-Missouri-Tennessee
Water Resources Division, U.S. Geological Survey
1976, Open-File Report 76-318
No abstract available....
Digital-model analysis to predict water levels in a well field near Columbus, Indiana
Michael Planert
1976, Water-Resources Investigations Report 76-63
Columbus, Indiana, obtains its water supply from six municipally owned wells southwest of the city. The wells are screened in an outwash sand and gravel aquifer that was deposited by glacial melt water in a preglacial bedrock valley. The well field is midway between the East Fork White River and...
Water resources of the Satus Creek Basin, Yakima Indian Reservation, Washington
M.J. Mundorff, Mac Nish, D.R. Cline
1976, Open-File Report 76-685
The Satus Creek basin lies on the east flank of the Cascade Range in south-central Washington. The basin is entirely within the Yakima Indian Reservation and is bordered and drained on the east by the Yakima River.Average annual precipitation ranges from about 35 inches in the western upland to less...
Topographic map of the Oxia Palus Quadrangle of Mars
Water Resources Division, U.S. Geological Survey
1976, IMAP 978
Topographic map of the Argyre Quadrangle of Mars
Water Resources Division, U.S. Geological Survey
1976, IMAP 985
Thermographic mosaic of Yellowstone National Park
Richard S. Williams Jr., Philip G. Hasell Jr., Albert N. Sellman, Harry W. Smedes
1976, Photogrammetric Engineering and Remote Sensing (42) 1315-1324
An uncontrolled thermographic mosaic, which covers most of the area of Yellowstone National Park, has been compiled. The recording of aerial thermographic data on videotape is established as one of the prerequisites for the preparation of more accurate mosaics. Post-mission processing of the videotape record can rectify the nadir line...
Estudio general de la region del Lago Titicaca evaluando en forma preliminar un sistema de analisis interactivo de imagenes multiespectrales
C.E. Brockmann, William D. Carter
1976, Revista tecnica de Yacimientos Petroliferos fiscales Bolivianos (5) 5-31
ERTS-1 digital data in the form of computer compatible tapes provide the geoscientist with an unusual opportunity to test the maximum flexibility of the satellite system using interactive computers, such as the General Electric Image 100 System. Approximately 9 hours of computer and operator time were used to analyze...
The survival of coho salmon (Oncorhynchus kisutch) eggs in two Wisconsin tributaries of Lake Michigan
James E. Cloern
1976, American Midland Naturalist (96) 451-461
Natural reproduction of coho salmon (Oncorhynchus kisutch) in two Wisconsin tributaries of Lake Michigan (Little Scarboro Creek, Kewaunee Co., and Fischer Creek, Manitowoc Co.), is limited by an unusually high mortality of eggs and preemergent embryos. Of approximately 1800 coho salmon eggs planted in six study redds (spawning beds) within...
Limnological data for the major streams in Chester County, Pennsylvania
Bruce W. Lium
1976, Report
Limnological data on major streams in Chester County, Pennsylvania are tabulated to provide a base line as to the present stream conditions. As land-use patterns change and further urbanization takes place, it is anticipated that these data will serve as a basis for comparison of conditions in the future. The...
Deep evaporitic strata off New York and New Jersey-Evidence from interstitial water chemistry of drill cores
Frank T. Manheim, R.E. Hall
1976, Journal of Research of the U.S. Geological Survey (4) 697-702
No abstract available....
Ground-water resources of the White River Junction area, Vermont
Arthur L. Hodges Jr., David Butterfield
1976, Report
A study of the ground-water resources of the White River Junction area, Windsor County, Vermont, was begun in 1969 as part of a cooperative program between the Vermont Department of Water Resources and the U.S. Geological Survey. The purpose of the study was to provide technical appraisal of potential sources...
Ground-water resources of the Barre-Montpelier area, Vermont
Arthur L. Hodges Jr., David Butterfield
1976, Report
A study of the ground-water resources of the Barre - Montpelier area (fig. 1), Washington County, was begun in 1968 as part of a cooperative program between the Vermont Department of Water Resources and the U.S. Geological Survey. The purpose of the study is to provide technical appraisal of potential...
Hydrogeochemistry of Bermuda: A case history of ground-water diagenesis of biocalcarenites
L.N. Plummer, H. L. Vacher, F.T. MacKenzie, O.P. Bricker, L.S. Land
1976, Geological Society of America Bulletin (87) 1301-1316
Bermuda is composed of relatively young skeletal limestones currently undergoing diagenesis by the ground water passing through them. The saturated zone consists of separate fresh-water bodies laterally surrounded and underlain by extensive brackish aureoles, in which the meteoric water is mixed with sea water. The meteoric water enters the aquifer...
Interstitial waters of marine sediments
Frank T. Manheim
1976, Book chapter, Chemical oceanography
No abstract available....
Heat-flow data and their relation to observed geothermal phenomena near Klamath Falls, Oregon
J.H. Sass, Edward A. Sammel
1976, Journal of Geophysical Research (81) 4863-4868
Two holes were drilled to depths of about 180 m in the Lower Klamath Lake basin south of Klamath Falls, Oregon, to obtain heat flow data and to provide estimates of the thermal conductivity of the valley fill. Twenty-nine thermal conductivity determinations on eight cores give a mean conductivity of...
Field recalibration of radiometers by using the shading technique
Alan P. Jackman, Richard D. Noble
1976, Journal of Research of the U.S. Geological Survey (4) 757-764
Use of radiometers to measure radiant energy components in energy budgets is widespread in water-resources studies. Previous experience has shown that readings of radiometers may contain substantial errors. These errors may be due to deterioration of the instrument during use and (or) inaccurate initial calibration. Both of these errors may...
Liquid scintillation counting of filtered algae in primary production studies
Doyle W. Stephens
1976, Journal of Research of the U.S. Geological Survey (4) 753-756
A technique for preparing phytoplankton samples for liquid scintillation counting and standardization has been developed. It consists of digestion of the carbon-14 labeled algae on small, inert filters coupled with a filter standardization and channels ratio method of efficiency determination. The technique is an alternative to many currently used methods...
