Classification of organic solutes in water by using macroreticular resins
J.A. Leenheer, Edward W. D. Huffman Jr.
1976, Journal of Research of the U.S. Geological Survey (4) 737-751
A series of macroreticular resin adsorbents was evaluated for ability to extract and fractionate organic solutes found in natural waters. Studies with organic solute standards and natural water samples lead to the development of dissolved organic carbon (DOC) fractionation analysis whereby the DOC is concentrated and fractionated by macroreticular...
Use of thermal-infrared imagery in ground-water investigations, northwestern Montana
A. J. Boettcher, R. M. Haralick, C. A. Paul, Norman Smothers
1976, Journal of Research of the U.S. Geological Survey (4) 727-732
Thermal-infrared imagery was used to locate ground-water inflow along a 50-mile (80-kilometre) reach of the Kootenai River and Lake Koocanusa and a 55-mi (88-km) reach of the Clark Fork of the Columbia River in northwestern Montana and northeastern Idaho. The imagery confirmed that measured streamflow gains below Noxon Rapids Dam,...
Geothermal flux through palagonitized tephra, Surtsey, Iceland: The Surtsey temperature-data-relay experiment via Landsat-1
Jules D. Friedman, Duane M. Preble, Sveinn P. Jakobsson
1976, Journal of Research of the U.S. Geological Survey (4) 645-659
The net geothermal flux through palagonitized basaltic tephra rims of the Surtur I and Surtur II craters at Surtsey, Iceland, in 1972, is estimated at 780 ±325 μcal cm-2s-1, indicating a decline since 1969 when a flux of 1,500 μcal cm-2s-1 was estimated. Heat flux in this range characterizes the...
Fracturing and subsidence of the land surface caused by the withdrawal of ground water in the Milford area, Utah
R.M. Cordova, R. W. Mower
1976, Journal of Research of the U.S. Geological Survey (4) 505-510
Fracturing and subsidence of the land surface in the Milford area of Utah have resulted from the decline of water levels due to pumping in unconsolidated deposits of Quaternary age. To the writers' knowledge, these are the first such effects of ground-water withdrawal reported in Utah. The fracturing is in an...
Improving estimates of streamflow characteristics by using Landsat-1 imagery
Este F. Hollyday
1976, Journal of Research of the U.S. Geological Survey (4) 517-531
Imagery from the first Earth Resources Technology Satellite (renamed Landsat-1) was used to discriminate physical features of drainage basins in an effort to improve equations used to estimate streamflow characteristics at gaged and ungaged sites. Records of 20 gaged basins in the Delmarva Peninsula of Maryland, Delaware, and Virginia were...
An infiltration index useful in estimating low-flow characteristics of drainage basin
Jeffrey T. Armbruster
1976, Journal of Research of the U.S. Geological Survey (4) 533-538
Regionalization of low flows using basin characteristics has not produced satisfactory results because the effect of geology has not been included. In the Susquehanna River basin, ground-water discharge from the regolith is the primary source of low flows. This paper describes the development of an infiltration index, which, by characterizing...
Fresh ground water found deep beneath Nantucket Island, Masachusetts
F. A. Kohout, E.H. Walker, Michael H. Bothner, J.C. Hathaway
1976, Journal of Research of the U.S. Geological Survey (4) 511-515
In a deep water-resources and stratigraphic test well near the center of Nantucket Island, about 30 miles (48 kilometres) off the New England coast, freshwater has been found at greater depths than predicted by the Ghyben-Herzberg principle. An uppermost lens of freshwater, which occupies relatively permeable glacial-outwash sand and gravel...
Gamma-ray spectrometer measurement of 238U/235U in uranium ore from a natural reactor at Oklo, Gabon
Robert M. Moxham
1976, Journal of Research of the U.S. Geological Survey (4) 589-592
About 20 years ago, Kuroda theorized that a high-grade uranium deposit emplaced about 2x109 years ago could achieve criticality and sustain a nuclear chain reaction, given a sufficient thickness of high-grade ore and an appropriate water content. Such a natural reactor was found in 1972 at the Oklo deposit, Gabon....
Search for the Viking 2 landing site
H. Masursky, N.L. Crabill
1976, Science (194) 62-68
The search for the landing site of Viking 2 was more extensive than the search for the Viking 1 site. Seven times as much area (4.5 million square kilometers) was examined as for Viking 1. Cydonia (B1) and Capri (C1) sites were examined with the Viking 1...
Bicarbonate content of groundwater in carbonate rock in eastern North America
F.W. Trainer, R.C. Heath
1976, Journal of Hydrology (31) 37-55
In carbonate-rock terrane the most effective solution occurs where soil and vegetative cover facilitate biogenic production and storage of CO2 in the soil until part of it is carried downward in percolating water. Bicarbonate data for groundwater in eastern North America are examined in the light of these conditions, of...
Instructions for sampling with depth-integrating, suspended-sediment samplers D-74, D-74AL, D-74TM, and D-74AL-TM
J. V. Skinner
1976, Report
No abstract available....
Status of projects in Minnesota, fiscal years 1976 and 1977
U.S. Geological Survey
1976, Report
No abstract available....
Hydrologic unit map-1974, State of Minnesota
U.S. Geological Survey
1976, Report
No abstract available....
Instrumentation automatic collection of sediment data
J. V. Skinner, J.P. Beverage
1976, Conference Paper
No abstract available....
Water quality management and the distribution of emission rights by sealed tender markets
Emil D. Attanasi
Robert M. Thrall, editor(s)
1976, Book chapter, Economic modeling for water policy evaluation; TIMS Studies in the Management Sciences
No abstract available....
Evaluation of LANDSAT-2 (ERTS) images applied to geologic structures and mineral resources of South America: Type II progress report for period June 30, 1975-June 30, 1976
William D. Carter, William S. Kowalik
1976, Report
The author has identified the following significant results. The Salar of Coposa is located in northern Chile along the frontier with Bolivia. The surface was divided into six general classes of materials. Analysis of LANDSAT image 1243-14001 by use of interactive multispectral computer (Image 100) enabled accurate repetition of these...
Geology and Rb-Sr ages of reactivated Precambrian gneisses and granite in the Marenisco-Watersmeet area, northern Michigan
P.K. Sims, Zell E. Peterman
1976, Journal of Research of the U.S. Geological Survey (4) 405-414
Rb-Sr dating of Precambrian W (lower Precambrian) gneisses and granitic rocks that form the cores of antiforms or domes mantled by metamorphosed Precambrian X (middle Precambrian) bedded rocks in the Marenisco-Watersmeet area, northern Michigan, shows that the rock systems have been disturbed to different degrees by complex tectonic and...
Graphic and analytical methods for assessment of stream-water quality: Mississippi River in the Minneapolis-St Paul metropolitan area, Minnesota
Steven P. Larson, William B. Mann IV, Timothy Doak Steele, R. H. Susag
1976, Water-Resources Investigations Report 76-94
No abstract available....
Comparative susceptibility of Atlantic salmon (Salmo salar) to the enteric redmouth bacterium and Aeromonas salmonicida
G. L. Bullock, H. M. Stuckey, R. L. Herman, C. E. Smith
1976, Journal of Wildlife Diseases (12) 376-379
The bacterium causing enteric redmouth (ERM) and Aeromonas salmonicida were found to be equally pathogenic for fingerling Atlantic salmon (Salmo salar). Injection of 5 × 105 cells of ERM or A. salmonicida killed all salmon within 96 h. After a 30 min exposure to water-borne cells of the two test bacteria about one-half of the...
Residues of DDT and DDE in livers of waterfowl, northeastern Louisiana--1970-71
Donald H. White
1976, Pesticides Monitoring Journal (10) 2-3
A study was conducted to determine the levels of DDT and DDE in the livers of 10 species of waterfowl collected in Louisiana from 1970 to 1971. Livers of 48 of 50 specimens contained detectable levels of DDT and/or DDE. DDT residues ranged from 0.01 to 10.90 ppm; DDE levels...
Hydrogeology of a drift-filled bedrock valley near Lino Lakes, Anoka County, Minnesota
T. C. Winter, H.O. Pfannkuch
1976, Journal of Research of the U.S. Geological Survey (4) 267-276
The bedrock surface of east-central Minnesota is dissected by an intricate network of valleys. Outside the bedrock valley at site B, 3 mi (4. 8 km) from site A, 100 ft (30 m) of drift overlies the bedrock surface. Observation wells were installed...
A simplified slope-area method for estimating flood discharges in natural channels
H. C. Riggs
1976, Journal of Research of the U.S. Geological Survey (4) 285-291
Discharge of a stream may be computed from the slope of the water surface, the cross-sectional area, and an estimate of channel roughness. This, the slope-area method, is widely used to compute flood peak discharges from high-water marks. Reliability of a computed discharge depends largely on the roughness coefficient, which...
Factors affecting declining water levels in a sewered area of Nassau County, New York
Murray S. Garber, Dennis J. Sulam
1976, Journal of Research of the U.S. Geological Survey (4) 255-265
Double-mass-curve analysis of ground-water levels in Nassau County, Long Island, N.Y., shows that the average-weighted ground-water levels in a 32-mi2 (83-km2) segment of a sewered area declined 11.8 ft (3.6 m) relative to an adjacent unsewered area to the east during 1953-72. Electric-analog-model analysis indicates that 4.9 ft (1.5...
Ocher as a prospecting medium in the Montezuma district of central Colorado
George J. Neuerburg, Theodore Botinelly
1976, Journal of Research of the U.S. Geological Survey (4) 359-365
Ocher occurs widely In the Montezuma district as small sinters and as bedded deposits of bog iron and ocher-cemented conglomerates. The iron of the ochers is derived from pyrite-rich veins and from pyritic hydrothermally altered rocks. Trace amounts of ore metals in the ocher and its admixed detritus are...
Sediment-filled pots in upland gravels of Maryland and Virginia
Louis C. Conant, Robert F. Black, John W. Hosterman
1976, Journal of Research of the U.S. Geological Survey (4) 353-358
Pot-shaped depressions filled with sandy clayey silt are found in "Upland" gravels (previously termed Brandywine) of probable Miocene age, in northeastern Maryland and in Virginia near Washington, D.C. The pots are about 7 ft (2m) deep and commonly are about as wide. In plan, many are strongly elliptical. Sides are...
