Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

41062 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 1632, results 40776 - 40800

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Hydrologic budget of the Beaverdam Creek basin, Maryland
W. C. Rasmussen, Gordon E. Andreasen
1959, Water Supply Paper 1472
A hydrologic budget is a statement accounting for the water gains and losses for selected periods in an area. Weekly measurements of precipitation streamflow, surface-water storage, ground-water stage, and soil resistivity were made during a 2year period, April 1, 1950, to March 28, 1952, in the Beaverdam Creek basin, Wicomico...
Geology and ground-water resources of the upper Lodgepole Creek drainage basin, Wyoming, with a section on chemical quality of the water
Louis Jay Bjorklund, R. A. Krieger, E. R. Jochens
1959, Water Supply Paper 1483
The principal sources of ground-water supply in the upper Lodgepole Creek drainage basin-the part of the basin west of the Wyoming-Nebraska State line-are the Brule formation of Oligocene age, the Arikaree formation of Miocene age, the Ogallala formation of Pliocene age, and the unconsolidated deposits of Quaternary age. The Brule...
Geology and ground-water resources of Medina County, Texas
Charles Lee Roy Holt
1959, Water Supply Paper 1422
The Edwards limestone of Cretaceous age is the principal water-bearing formation in Medina County and makes up the major part of a ground-water reservoir, or aquifier, which in places includes thinner limestone formations both above and below the Edwards. The Glen Rose limestone, also of Cretaceous age, yields moderate amounts...
Ground-water resources of the lower Niobrara River and Ponca Creek basins, Nebraska and South Dakota
Thomas G. Newport, Robert A. Krieger
1959, Water Supply Paper 1460-G
This report describes the area in north-central Nebraska and south-central South Dakota drained by Ponca Creek and by the Niobrara River below Valentine, Nebr. The Niobrara River and Ponca Creek are neighboring eastward flowing tributaries of the Missouri River. The Dakota sandstone of Cretaceous age is the oldest formation tapped...
History of Imuruk Lake, Seward Peninsula, Alaska
David M. Hopkins
1959, GSA Bulletin (70) 1033-1046
A study of Imuruk Lake, a large, shallow lake in north-central Seward Peninsula, Alaska, illuminates the climatic history of northwestern Alaska and the tectonic history of central Seward Peninsula during Pleistocene and Recent time. Special interest attaches to the older lake sediments, because they contain evidence concerning the climate, fauna, and...
Ground-water provinces of India
George C. Taylor
1959, Economic Geology (54) 683-697
This paper gives a general resume of ground-water utilization and development and describes the occurrence of water in eight ground-water provinces of India. The paper is based in part on observations of the writer during 1951-55 and in part on earlier work of the Geological Survey of India. Ground water...
Tritium and deuterium content of atmospheric hydrogen
F. Begemann, Irving Friedman
1959, Zeitschrift fur Naturforschung A (14) 1024-1031
The tritium and deuterium content of 24 samples of atmospheric hydrogen collected at ground level near Buffalo. N.Y. (U.S.A.). Hamburg (Germany), and Nürnberg (Germany) during 1954 to 1956 was measured.At the beginning of 1954 the T/H-ratio was found to have been 9.18 · 10-14 i.e. about a factor of 10 higher...
Determination of uranium in zircon
F. Cuttitta, G. J. Daniels
1959, Analytica Chimica Acta (20) 430-434
A routine fluorimetric procedure is described for the determination of trace amounts of uranium in zircon. It employs the direct extraction of uranyl nitrate with ethyl acetate using phosphate as a retainer for zirconium. Submicrogram amounts or uranium are separated in the presence of 100,000 times the amount of zirconium....
Composition of monazites from pegmatites in eastern Minas Gerais, Brazil
K. J. Murata, C. V. Dutra, da Costa, J.J.R. Branco
1959, Geochimica et Cosmochimica Acta (16) 1-14
Two zoned pegmatites in south-eastern Minas Gerais were sampled in detail for their content of monazite and xenotime and the monazite was analysed for certain of the rare-earth elements and thorium.The ratio of xenotime to monazite increases in both pegmatites from the wall toward the quartz core. The content of...
Ground-water resources in the tri-state region adjacent to the Lower Delaware River
Henry C. Barksdale, David W. Greenman, Solomon Max Lang, George Stockbridge Hilton, Donald E. Outlaw
1958, New Jersey Division of Water Policy and Supply Special Report 13
The purpose of this report is to appraise and evaluate the groundwater resources of a tri-state region adjacent to the lower Delaware River that is centered around Philadelphia, Pa., and Camden, N. J., and includes Wilmington, Del., and Trenton, N.J. Specifically, the region includes New Castle County, Del.; Burlington, Camden,...
Physical properties of salt, anhydrite and gypsum : preliminary report
Eugene C. Robertson, Richard A. Robie, Kenneth G. Books
1958, Trace Elements Memorandum 1048
This summary is the result of a search of the available literature. Emphasis is placed on the mechanical and calorimetric properties of salt; the measurements of elastic, thermal, magnetic, and mass properties of salt are merely tabulated. Under hydrostatic pressure < 1,000 kg/cm2 at room temperature, salt deforms plastically to...
Origin of manganese deposits of Busuanga Island, Philippines
Ronald Keith Sorem
1958, Open-File Report 58-98
The manganese deposits of Busuanga Island, Palawan, are tabular and broadly lenticular bodies which lie conformably within a thick sequence of deformed abort beds. The purpose of this study is to determine the probable mode of origin of the deposits. Similar deposits in other parts of the world have been...
Selected topics of fluid mechanics
Carl E. Kindsvater
1958, Water Supply Paper 1369-A
The fundamental equations of fluid mechanics are specific expressions of the principles of motion which are ascribed to Isaac Newton. Thus, the equations which form the framework of applied fluid mechanics or hydraulics are, in addition to the equation of continuity, the Newtonian equations of energy and momentum. These basic...
The environmental control of sedimentary iron minerals
N.K. Huber
1958, Economic Geology (53) 123-140
An Eh-pH stability diagram is developed for hematite, magnetite, siderite, pyrite, and iron sulfide that indicates the relative position of their stability fields in a normal sea water system. With the exception of the magnetite-siderite relationship, Eh is much more critical than pH. In general terms, hematite is stable under...
The solusphere - its inferences and study
F. H. Rainwater, W. F. White
1958, Geochimica et Cosmochimica Acta (14) 244-249
Water is a fundamental geologic agent active in rock decomposition, erosion, and synthesis. Solutes in water are of particular interest to geochemists as sources of raw material for synthesis or as products of decomposition. When geochemical studies move from the laboratory into natural environment many variables relating to solute hydrology...
Reconnaissance study of erosion and deposition produced by the flood of August 1955 in Connecticut
M. Gordon Wolman, J.P. Eiler
1958, Eos, Transactions, American Geophysical Union (39) 1-14
A large area in the valley bottoms in Connecticut was inundated by the flood of August 1955. Relative to the total area flooded that part permanently modified by the flow was surprisingly small. Although great in some places, the distribution of these permanent modifications of channel and flood plain was...
Mass control of insects: The effects on fish and wildlife
Oliver B. Cope, Paul F. Springer
1958, Bulletin of the Entomological Society of America (4) 52-56
The mass control of insects carried on during the past ten years has made possible the economical suppression and, in a few instances, the near eradication of pest insect populations over widespread areas. These large operations, usually featuring the use of the airplane for applying insecticides quickly and cheaply, have...
The deuterium content of water in some volcanic glasses
I. Friedman, R. L. Smith
1958, Geochimica et Cosmochimica Acta (15) 218-228
The deuterium-hydrogen composition (relative to Lake Michigan water = 0.0) of water extractsd from coexisting perlite and obsidian from eleven different localities was determined. The water content of the obsidians is generally from 0.09 to 0.29 per cent by weight, though two samples from near Olancha, California, contain about 0.92...
Volumes and surface areas of pendular rings
W. Rose
1958, Journal of Applied Physics (29) 687-691
A packing of spheres is taken as a suitable model of porous media. The packing may be regular and the sphere size may be uniform, but in general, both should be random. Approximations are developed to give the volumes and surface areas of pendular rings that exist at points of sphere...
A combined deamination and nitro reduction method for nitroanilines
G. C. Finger, R.H. White
1958, Journal of Organic Chemistry (23) 1612-1613
The hypophosphorous acid-cuprous oxide deamination method on nitroanilines has been modified so that the nitro compounds which are formed are reduced in turn by cuprous oxide to the corresponding amines. Over-all yields of 55-65% are reported for three halogenated nitroanilines....
New host and locality record for Triaenophorus crassus forel (Cestoda: pseudophyllidea)
J. R. Uzmann, M. N. Hesselholt
1957, Journal of Parasitology (43) 205-208
The adult form of Triaenophorus crassus Forel, 1868 (= T. robustus Olsson, 1893; = T. tricuspidatus morpha megadentatus Wardle, 1932) occurs as an intestinal parasite in the pike, Esox lucius L., a holarctic species of wide distribution. Preliminary life-history stages include procercoid development in copepods of the genus Cyclops followed...