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Page 2423, results 60551 - 60575

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Index to water-quality data available from the U.S. Geological Survey in machine-readable form to December 31, 1972; Northeastern region
Charles R. Showen, Owen O. Williams
1973, Water-Resources Investigations Report 73-21
This report lists water quality stations operated by the U.S. Geological Survey for which data are available in machine-readable form. The data are the results of analyses of water samples and indicate the chemical and physical characteristics of surface and ground water. Samples of surface water were collected at designated...
Index to water-quality data available from the U.S. Geological Survey in machine-readable form to December 31, 1972: Southeastern Region
Charles R. Showen, Owen O. Williams
1973, Water-Resources Investigations Report 73-22
This report lists water quality stations operated by the Geological Survey for what data are available in machine-readable form. The data are the results of analyses of water samples and indicate the chemical and physical characteristics of surface and ground water. The stations are listed according to station number within each State. The water...
Preliminary report on the geology along the Atlantic Continental margin of the northeastern United States
James P. Minard, W. J. Perry Jr., Elaine G. A. Weed, E. C. Rhodehamel, E. I. Robbins, R. B. Mixon
1973, Open-File Report 73-191
The U.S. Geological Survey is conducting a geological and geophysical study of the northeastern United States Outer Continental Shelf and the adjacent slope from Georges Bank to Cape Hatteras. The study also includes the adjacent Coastal Plain because it is a more accessible extension of the shelf. The total study...
Interstitial water studies on small core samples, Deep Sea Drilling Project: Leg 10
Frank T. Manheim, Fred L. Sayles, Lee S. Waterman
1973, Initial reports of the Deep Sea Drilling Project (10) 615-623
Leg 10 interstitial water analyses provide new indications of the distribution of rock salt beneath the floor of the Gulf of Mexico, both confirming areas previously indicated to be underlain by salt bodies and extending evidence of salt distribution to seismically featureless areas in the Sigsbee Knolls trend and Isthmian...
Sediment discharge in the Lake Tahoe basin, California, 1972 water year
Carl G. Kroll
1973, Report
Streamflow and fluvial-sediment discharge data are being collected at selected streams and highway gutters in the Lake Tahoe basin to determine the extent of erosion from highway cuts and to evaluate the effects of various land treatment practices to reduce erosion. Precipitation in the Lake Tahoe area during 1972 was 77...
Hydrologic Data of the Neponset and Weymouth River Basins, Massachusetts
R. A. Brackley, William B. Fleck, Richard E. Willey
1973, Massachusetts Hydrologic - Data Report 14
The Neponset, Weymouth Fore, and Weymouth Back River basins occupy an area of 183 square miles in eastern Massachusetts south of Boston and Braintree, Brockton, Canton, Dedham, Dover, Foxborough, Hingham, Holbrook, Medfield, Milton, Norwood, Quincy, Randolph, Rockland, Sharon, Stoughton, Walpole, Westwood, and Weymouth. Hydrologic data presented in this report were collected...
The benthic fauna of the Northern Bering Sea
Robert W. Rowland
1973, Report
The shelled benthic fauna of the northern Bering Sea has been extensively sampled and the taxonomy, distribution and functional role of 105 species of mollusks, two species of barnacles, two species of echinoids and one species of brachiopod havet4pen examined: The major benthic communities were evaluated by cluster analysis. They are: the Balanus rostratus alaskensis...
Interstitial water studies on small core samples, leg 19
F.L. Sayles, L.S. Waterman, Frank T. Manheim
1973, Initial reports of the Deep Sea Drilling Project (19) 871-874
The sediments cored on Leg 19 consist primarily of diatomaceous oozes with variable proportions of volcanic material and terrigenous clays and silts. With a few exceptions, deposition rates are high at these sites, usually exceeding 5cm/103y. The interstitial solutions sampled exhibit compositional changes which previously have been found to characterize...
Interstitial water studies on small core samples, legs 16, 17, and 18
L.S. Waterman, F.L. Sayles, Frank T. Manheim
1973, Initial reports of the Deep Sea Drilling Project (18) 1001-1012
Legs 16, 17, and 18 encountered three groups of sediment types: rapidly deposited biogenic deposits, showing marked changes in interstitial calcium, magnesium, and strontium; slowly deposited biogenic deposits, showing little variability in pore fluids other than elevated silica concentrations; and terrigenous deposits. The latter showed the usual loss of sulfate...
Phosphate in interstitial waters of anoxic sediments: Oxidation effects during sampling procedure
J.T. Bray, O.P. Bricker, B.N. Troup
1973, Science (180) 1362-1364
Oxidation during sampling procedures significantly decreases the inorganic phosphate concentrations of interstitial water rich in iron (II). All sampling and analytical procedures must be carried out in an inert atmosphere. Orthophosphate in the interstitial water of Cheaspeake Bay sediments, in equilibrium with vivianite, is a potential nutrient source for the...
Notes on the bromine pentafluoride technique of oxygen extraction
Irving Friedman, Jim D. Gleason
1973, Journal of Research of the U.S. Geological Survey (1) 679-680
The necessity to use a dry box when loading silicate samples into reaction vessels prior to fluorination is eliminated by the use of a simple loading technique. Data presented show the reproducibility of the fluorination reaction using this technique. Sodium fluoride, when added to saline waters prior to fluorination, improves...
Interstitial water studies on small core samples, Leg 15
Fred L. Sayles, Frank T. Manheim, Lee S. Waterman
1973, Initial reports of the Deep Sea Drilling Project (15) 783-804
Analyses of pore fluids from reducing environments demonstrate that reduction of SO4 is accompanied by large increases in alkalinity and strong depletion of Ca and Mg. The data are compatible with a model of replacement of Fe3+ in clay lattices by Mg from the interstitial solutions and the precipitation of...
Resistivity, self‐potential, and induced‐polarization surveys of a vapor‐dominated geothermal system
A.A.R. Zohdy, L. A. Anderson, L.J. Patrick Muffler
1973, Geophysics (38) 1130-1144
The Mud Volcano area in Yellowstone National Park provides an example of a vapor‐dominated geothermal system. A test well drilled to a depth of about 347 ft penetrated the vapor‐dominated reservoir at a depth of less than 300 ft. Subsequently, 16 vertical electrical soundings (VES) of the Schlumberger type were...
Geologic factors affecting compaction of deposits in a land-subsidence area
William B. Bull
1973, Geological Society of America Bulletin (84) 3783-3802
In the west-central San Joaquin Valley, California, pumping of ground water has changed water levels, thereby increasing the stresses that tend to compact alluvium by as much as 50 percent and creating a large area of intense land subsidence.The estimated 1943–1960 specific unit compaction (compaction during a time period, per...