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Page 6696, results 167376 - 167400

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Minor-element composition and organic carbon content of marine and nonmarine shales of Late Cretaceous age in the western interior of the United States
H. A. Tourtelot
1964, Geochimica et Cosmochimica Acta (28) 1579-1604
The composition of nonmarine shales of Cretaceous age that contain less than 1 per cent organic carbon is assumed to represent the inherited minor-element composition of clayey sediments delivered to the Cretaceous sea that occupied the western interior region of North America. Differences in minor-element content between these samples and...
Lake Michigan chemical data, 1954-55, 1960-61
Alfred M. Beeton, James W. Moffett
1964, Data Report 6
This report presents without interpretation methods used in and the results of chemical analyses, and supplemental observations of temperatures at depth, transparency, and meteorological conditions for Lake Michigan in 1954, 1955, 1960, and 1961....
Classes of land-surface form in the United States
Edwin Hammond
1964, Report, The national atlas of the United States of America
This digital dataset describes classes of land-surface form in the conterminous United States. The source of the data is the map of land-surface form in the 1970 National Atlas of the United States, pages 62-63, which was adapted from Edwin H. Hammond, "Classes of land surface form in the...
The true pikes
Ernest G. Karvelis
1964, Fishery Leaflet 569
No abstract available....
Bottom sediments of Saginaw Bay, Michigan
Leonard E. Wood
1964, Journal of Sedimentary Petrology (34) 173-184
Saginaw Bay is a southwest extension of Lake Huron on the east shore of the Southern Peninsula of Michigan. It is a shallow-water derivative of the Pleistocene Lake Saginaw. Sixty-one bottom samples were collected on a semigrid pattern and analyzed physically. Findings were treated statistically. Sediments range in size from...
Apparatus for continuous extraction of nonpolar compounds from water applied to determination of chlorinated pesticides and intermediates
L. Kahn, C. H. Wayman
1964, Analytical Chemistry (36) 1340-1343
A continuous, multichamber liquid-liquid extractor, with internal solvent recycle, for the extraction of nonpolar contaminants from natural waters is described. The multichamber arrangement makes it possible to judge the completeness of extraction of a given component from the aqueous stream. Recoveries as high as 100% are obtained by applying the...
Spectrophotometric determination of fluorine in silicate rocks
L. C. Peck, V. C. Smith
1964, Talanta (11) 1343-1347
The rock powder is sintered with a sodium carbonate flux containing zinc oxide and magnesium carbonate, the sinter-cake leached with water and the resulting solution filtered. Fluorine is separated from the acidified filtrate by steam distillation and determined spectrophotometrically by means of a zirconium-SPADNS reagent. If...
A thermodynamic study of pyrite and pyrrhotite
P. Toulmin III, P. B. Barton Jr.
1964, Geochimica et Cosmochimica Acta (28) 641-671
Through the use of the electrum-tarnish method the following equation has been found to interrelate the composition of pyrrhotite, fugacity of sulfur, and temperature: In this equation fs2 is the fugacity of sulfur relative to the ideal diatomic gas at 1 atm, N is the mol fraction of FeS in pyrrhotite (in the...
Cenomanian (Cretaceons) Foraminifera from the Puerto Rico Trench
R. Todd, D. Low
1964, Deep-Sea Research and Oceanographic Abstracts (11) 391-393
An assemblage of predominantly planktonic Foraminifera is discussed from rocks of Cenomanian age dredged from between 3,200 and 3,500 fm on the north slope of the Puerto Rico Trench. Thirty-three planktonic and benthonic species are described. Planomalina pulchella is new; nine species are specifically...
Crystal formation in furunculosis agar
G. L. Bullock, A. J. Ross
1964, Progressive Fish-Culturist (26) 25-26
SINCE ITS INTRODUCTION SOME MONTHS AGO, FURUNCULOSIS AGAR has been employed in the diagnosis of suspect furunculosis and also as a general purpose medium. During our work with this medium we have noticed discrete "colonies," of crystalline material, which very closely resemble microbial colonies. These crystal colonies are compact and appear...
Vapor pressure and vapor fractionation of silicate melts of tektite composition
Louis S. Walter, M. K. Carron
1964, Geochimica et Cosmochimica Acta (28) 937-951
The total vapor pressure of Philippine tektite melts of approximately 70 per cent silica has been determined at temperatures ranging from 1500 to 2100°C. This pressure is 190 ± 40 mm Hg at 1500°C, 450 ± 50 mm at 1800°C and 850 ± 70 mm at 2100° C. Determinations were...
Quality of surface waters in Utah, October 1962 to September 1963
U.S. Geological Survey
1964, Report
This data release is a compilation that presents water-quality data for the period October 1962 to September 1963 for the sites listed on page 2. These preliminary data are subject to revision before final publication in the annual series of U.S. Geological Survey Water-supply papers entitled Quality of surface waters...
Ground-water reconnaissance in the Burnt River valley, Baker County, Oregon
Don Price
1964, Open-File Report 64-128
The Burnt River valley in southern Baker County, Oreg., is underlain by rocks that range in age from pre-Tertiary to Quaternary. The pre-Tertiary rocks consist mainly of argillites, schists, limestones, and intrusive igneous rocks, while the Tertiary rocks consist mainly of felsic and mafic volcanic tuffs, lava flows and breccias,...
Water in the world
Luna Bergere Leopold
1964, The UNESCO Courier (17) 11-13
The earth, Including Its oceans and atmosphere, ls a giant distillation system whose operation brings about the distribution of fresh water throughout the world, from the frozen wastes of polar regions to the burning equatorial deserts. Stated in the simplest terms, distillation, condensation and liquid flow are the elemental processes...
Studies of pre-Selma Cretaceous core samples from the outcrop area in western Alabama
Watson Hiner Monroe, Richard E. Bergenback, Norman F. Sohl, Esther R. Applin, Estella B. Leopold, Helen M. Pakiser, Louis C. Conant
1964, Bulletin 1160
In 1954 four core holes were drilled in the pre-Selma Cretaceous strata of the Alabama Coastal Plain in order to get unweathered samples within a few miles of the outcrops. During the next few years several specialists studied the cores, and their reports are published as consecutive parts of this...
White-fronts
Alexander Dzubin, H.W. Miller, G.V. Schildman
J.P. Linduska, editor(s)
1964, Waterfowl Tomorrow 135-143