Ancient granite gneiss in the Black Hills, South Dakota
R. E. Zartman, J.J. Norton, T. W. Stern
1964, Science (145) 479-481
Granite gneiss, with an age of approximately 2.5 billion years, in the Black Hills, South Dakota , provides a link betweeen ancient rocks in western Wyoming and Montana and in eastern North and South Dakota and Minnesota. The discovery suggests that early Precambrian rocks covered an extensive area in northcentral...
The electrum-tarnish method for the determination of the fugacity of sulfur in laboratory sulfide systems
P. B. Barton Jr., P. Toulmin III
1964, Geochimica et Cosmochimica Acta (28) 619-640
A new method for the determination of the fugacity of sulfur in laboratory systems consists of visual observation of the development and decomposition of a sulfide tarnish phase on silver-gold alloy (electrum) of precisely known composition. The alloy system is calibrated against pure sulfur. The method has the following advantages:...
Catalytic determination of vanadium in water
M. J. Fishman, M. W. Skougstad
1964, Analytical Chemistry (36) 1643-1646
A kinetic determination of V(V) as a catalyst was spectrophotometrically performed by using the indicator reaction of Gallamine blue (GB+) and bromate at pH 2.0. The reaction was followed by measuring absorbance change for a fixed-time of 3 min at 537 nm. The variables such as reagent...
Tritium-hydrologic research: Some results of the U.S. Geological Survey Research Program
C.W. Carlston
1964, Science (143) 804-806
In general tritium is of limited usefulness as a tool in hydrologic studies because the tritium content of ground water, as a result of radioactive decay, becomes too low to be detectable after about 50 years. Nevertheless, a unique study was made of the hydrologic cycle of small stream basins...
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...
Distribution of narrow-width magnetic anomalies in Antarctica
John C. Behrendt
1964, Science (144) 993-999
Data for aeromagnetic profiles obtained in Antarctica during the 1963-64 austral summer were used together with earlier results to construct a map showing the areal distribution of narrow-width magnetic anomalies. Numerous anomalies are associated with known volcanic mountains in western Antarctica. A large area of few anomalies is probably a...
Igneous rocks of the East Pacific Rise
A.E.J. Engel, C.G. Engel
1964, Science (146) 477-485
The apical parts of large volcanoes along the East Pacific Rise (islands and seamounts) are encrusted with rocks of the alkali volcanic suite (alkali basalt, andesine- and oligoclase-andesite, and trachyte). In contrast, the more submerged parts of the Rise are largely composed of a tholeiitic basalt which has low concentrations...
Isotopic composition of lead and strontium from Ascension and Gough Islands
P.W. Gast, G.R. Tilton, C. Hedge
1964, Science (145) 1181-1185
Isotopic composition of lead and strontium has been determined in a series of rock samples from two islands on the Mid-Atlantic Ridge. Both inter-and intra-island variations exist in the abundance of radiogenic isotopes of both elements. Lead from basalt of Ascension Island has a Pb206-Pb 204 ratio of 19.5, while...
Potassium-argon and lead-alpha ages of plutonic rocks, Bokan Mountain area, Alaska
M. A. Lanphere, E.M. MacKevett Jr., T. W. Stern
1964, Science (145) 705-707
Most of the granitic rocks in the Bokan Mountain area, southeastern Alaska, are early Paleozoic (probably Ordovician) judged by potassium-argon and lead-alpha age measurements. The Bokan Mountain Granite, the youngest intrusive unit in the area, belongs to a Mesozoic plutonic episode. These age measurements are the first direct evidence for...
Submicroscopic spherules and color of tektites
A. N. Thorpe, F. E. Senftle
1964, Geochimica et Cosmochimica Acta (28)
Magnetic susceptibility measurements of 18 tektites from various strewn fields have been made as a function of temperature from 77°K to room temperature. A relatively large temperature-independent component of the magnetic susceptibility was observed in all cases, and an analysis of the data...
Ground water in North America
Harold E. Thomas, Luna Bergere Leopold
1964, Science (143) 1001-1006
The fast-growing demands on this natural resource expose a need to resolve many hydrologic unknowns....
Paleozoic mollusk: Hyolithes
L. Marek, E. L. Yochelson
1964, Science (146) 1674-1675
An unusually well-preserved Ordovician fossil from Czechoslovakia shows that the enigmatic paired structures once thought to be outgrowths of the operculum of Hyolithes are really independent structures lying between the operculumn and the aperture of the shell. The find seems to provide conclusive proof of the morphologic uniqueness of hyolithids....
Crystal chemistry and structure refinement of five hydrated calcium borates
J. R. Clark, D.E. Appleman, C. L. Christ
1964, Journal of Inorganic and Nuclear Chemistry (26) 73-95
The crystal structures of the five known members of the series Ca2B6O11·xH2O (x = 1, 5, 5, 7, 9, and 13) have been refined by full-matrix least-squares techniques, yielding bond distances and angles with standard errors of less than 0·01 Å and 0·5°,...
Surface water records of Texas, 1963
U.S. Geological Survey
1964, Report
No abstract available....
Records of precipitation, aquifer head, and ground-water recharge to the Edwards and associated limestones, San Antonio area, Texas, 1963
Sergio Garza
1964, Edwards Underground Water District Bulletin 6
No abstract available....
Ground-water discharge from the Edwards and associated limestones, San Antonio area, Texas, 1963
Sergio Garza
1964, Edwards Underground Water District Bulletin 5
No abstract available....
Chemical analyses of water from observation wells in the Edwards and associated limestones, San Antonio area, Texas, 1963
Sergio Garza
1964, Edwards Underground Water District Bulletin 4
No abstract available....
Ground-water data, Sevier Desert, Utah
Reed W. Mower, Richard D. Feltis
1964, Utah Basic-Data Report 9
This report is intended to serve two purposes: (1) to make available to the public basic ground-water data useful in planning and studying development of water resources, and (2) to supplement an interpretive report that will be published later.Records were collected during the period 1935-64 by the U.S. Geological survey...
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...
Selected hydrologic data, upper Sevier River basin, Utah
Carl H. Carpenter, Gerald B. Robinson Jr., Louis Jay Bjorklund
1964, Utah Basic-Data Report 8
This report is intended to serve two purposes: (1) to make available to the public basic ground-water data useful in planning and studying development of water resources, and (2) to supplement an interpretive report that will be published later.Records were collected during 1961-63 by the U.S. Geological Survey in cooperation...
Developing a State Water Plan: A basic water resource data program for Utah
Ted Arnow, R.H. Langford, M. T. Wilson
1964, Cooperative Investigations Report 1
Reliable data on Utah's water resources are essential to development of a State Water plan. While the need for such data was outlined in the report entitles "Developing a State Water Plan - Utah's water resources, problems, and needs - A challenge" published by the Utah Water and Power Board...
Bauxite deposits of the Tippah-Benton district, Mississippi
Harry Allison Tourtelot
1964, Bulletin 1199-C
No abstract available....
Stratigraphy and petrography of the Pybus-Gambier area, Admiralty Island, Alaska
R. A. Loney
1964, Bulletin 1178
No abstract available....
Geology of the Jarbidge quadrangle, Nevada-Idaho
Robert Roy Coats
1964, Bulletin 1141-M
No abstract available....
Geology of the Frenchie Creek quadrangle, north-central Nevada
L.J.P. Muffler
1964, Bulletin 1179
No abstract available....
