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Page 5914, results 147826 - 147850

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Publication Extents

Not all publications have extents, not all extents are completely accurate
The Amazon, measuring a mighty river
Water Resources Division, U.S. Geological Survey
1967, Report
The Amazon, the world's largest river, discharges enough water into the sea each day to provide fresh water to the City of New York for over 9 years. Its flow accounts for about 15 percent of all the fresh water discharged into the oceans by all the rivers of the...
Digital caliper
Louella E. Cable
1967, Copeia (1967) 683-685
The large number of measurements needed to describe fully the characteristics of biological specimens and other objects has always been tedious and time consuming. The work can be done much more rapidly and with greater accuracy with a digital caliper recently developed by us. The digital caliper is...
Serial publications commonly cited in technical bibliographies of the United States Geological Survey
Water Resources Division, U.S. Geological Survey
1967, Report
This compilation is a listing of the serial publications cited in the following publications of the United States Geological Survey: Geophysical Abstracts, Abstracts of North American Geology, Bibliography of North American Geology, and Bibliography of Hydrology of the United States. A supplement of publications added since the main list was...
Base surge in recent volcanic eruptions
J.G. Moore
1967, Bulletin Volcanologique (30) 337-363
A base surge, first identified at the Bikini thermonuclear undersea explosion, is a ring-shaped basal cloud that sweeps outward as a density flow from the base of a vertical explosion column. Base surges are also common in shallow underground test explosions and are formed by expanding gases which first vent...
Field Methods for the Study of Slope and Fluvial Processes
Luna Bergere Leopold, editor(s)
1967, Revue de Géomorphologie Dynamique (17) 147-187
In Belgium during the summer of 1966 the Commission on Slopes and the Commission on Applied Geomorphology of the International Geographical Union sponsored a joint symposium, with field excursions, and meetings of the two commissions. As a result of the conference and associated discussions, the participants expressed the view that...
Potassium-argon ages of recent rhyolites of the Mono and Inyo craters, California
G. Brent Dalrymple
1967, Earth and Planetary Science Letters (3) 289-298
Twenty-two KAr ages were determined for sanidine samples from 10 rhyolite domes of the Mono and Inyo Craters to test the applicability of KAr dating to volcanic rocks of Recent age. Comparison of the results with ‘blank’ and dosed analyses shows...
Succession of rugose coral faunas in the Lower and Middle Devonian of eastern North America
William Albert Oliver Jr.
1967, Conference Paper, International symposium on the Devonian system
Rocks of Early Devonian age are widely but sporadically distributed in the eastern half of North America and coral studies are based on a very incomplete record. Middle Devonian rocks are thicker and cover a greater area. Both Early and Middle Devonian corals are more similar to western European species...
The occurrence and origin of lamellar troilite in iron meteorites
R. Brett, E.P. Henderson
1967, Geochimica et Cosmochimica Acta (31) 721-730
A number of iron meteorites contain elongated inclusions consisting predominantly of troilite, which have been termed Reichenbach lamellae. Two types of inclusions exist, the first up to 6 cm long and 0·2 mm wide, the second up to 2 cm long and 3 mm wide. The first type contains troilite...
K Ar and Rb Sr measurements on P-207, the U.S.G.S. interlaboratory standard muscovite
M. A. Lanphere, G. B. Dalrymple
1967, Geochimica et Cosmochimica Acta (31) 1091-1094
Potassium-argon analyses of P-207 in twenty-four laboratories and rubidium-strontium analyses in ten laboratories indicate that for material of this typo the average interlaboratory precision for KAr ages is 2.6% and for RbSr ages is 3.4%, and the average intralaboratory precision for KAr ages is 1.6% and for RbSr ages is...
87Sr/86Sr ratios in some eugeosynclinal sedimentary rocks and their bearing on the origin of granitic magma in orogenic belts
Z. E. Peterman, C. E. Hedge, R. G. Coleman, P. D. Snavely Jr.
1967, Earth and Planetary Science Letters (2) 433-439
Rb and Sr contents and87Sr/86Sr values were determined for samples of eugeosynclinal sedimentary rocks, mostly graywackes, from Oregon and California. These data are compatible with the theory of anataxis of eugeosynclinal sedimentary rocks in orogenic belts to produce granitic magmas provided...
Pressure derivatives of elastic moduli of fused quartz to 10 kb
L. Peselnick, R. Meister, W.H. Wilson
1967, Journal of Physics and Chemistry of Solids (28) 635-639
Measurements of the longitudinal and shear moduli were made on fused quartz to 10 kb at 24·5°C. The anomalous behavior of the bulk modulus K at low pressure, &#x2202;K&#x2202;P&lt; 0">∂K∂P< 0, begins to approach the “normal” behavior of solids, &#x2202;K&#x2202;P&gt; 0">∂K∂P> 0,...
The ternary system K2SO4 MgSO4 CaSO4
J.J. Rowe, G.W. Morey, C.C. Silber
1967, Journal of Inorganic and Nuclear Chemistry (29) 925-942
Melting and subsolidus relations in the system K2SO4MgSO4CaSO4 were studied using heating-cooling curves, differential thermal analysis, optics, X-ray diffraction at room and high temperatures and by quenching techniques. Previous investigators were unable to study the binary MgSO4CaSO4 system and the adjacent area in the ternary system because of the decomposition of MgSO4 and...
Pliocene geomagnetic polarity epochs
G. B. Dalrymple, A. Cox, Richard R. Doell, C. S. Grommé
1967, Earth and Planetary Science Letters (2) 163-173
A paleomagnetic and K-Ar dating study of 44 upper Miocene and Pliocene volcanic units from the western United States suggests that the frequency of reversals of the earth's magnetic field during Pliocene time may have been comparable with that of the...