Philip M. Bethke, Paul B. Barton Jr.
1971, Economic Geology (66) 140-163
No abstract available....
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Publication Extents
Not all publications have extents, not all extents are completely accurateZell E. Peterman, Carl E. Hedge
1971, Bulletin of the Geological Society of America (82) 493-499
Sr87/Sr86 values in oceanic basalts range from 0.7012 to 0.7057 and correlate with basalt composition as measured by the ratio K2O/(Na2O + K2O). The distribution of data points on this plot can be approximated by the following ranges in Sr87/Sr86 and K2O/(K2O + Na2O) respectively: (l) ocean...
Walter S. White
1971, Economic Geology (66) 1-13
Pertinent physical properties of the upper Keweenawan rocks can be measured or inferred within a sufficiently narrow range to make the quantitative evaluation of various paleohydrologic models for the origin of the White Pine copper deposit feasible. The approach is illustrated here by calculations for...
Edwin Roedder
1971, Economic Geology (66) 98-120
Data are given on the composition, temperature, pressure, and density of the hydrothermal fluids present in the central Cu-Mo core of the deposit at Bingham, Utah, and in its related but not necessarily coeval peripheral Pb-Zn deposits. These data are based on a study of...
D. E. White, L.J. Patrick Muffler, A. H. Truesdell
1971, Economic Geology (66) 75-97
No abstract available....
F.T. Manheim, F.L. Sayles
1971, Initial reports of the Deep Sea Drilling Project (6) 811-821
Sediments from Leg 6 sites, west of the Hawaiian Islands, consisted primarily of various combinations of deep-sea biogenic oozes, volcanic ash, and its breakdown products. Pore fluids from most of the sites were similar in composition to present day ocean water, and in some sties almost identical. However, interstitial fluids...
D. F. Hewett
1971, Economic Geology (66) 164-177
The lead manganate, "coronadite," was first recognized at the Coronado mine in the Morenci district, Arizona, by Lindgren in 1903. Several years later, the identity of the mineral was questioned and it was not until 1932 that Orcel recognized it in material from Morocco. Since...
Cyrus W. Field, William J. Moore
1971, Economic Geology (66) 48-62
The delta S 34 values for 261 sulfide concentrates from the "B" limestone replacement and Galena fissure deposits of the U. S. mine range from +3.8 to --8.0 permil; the mean is +0.56 permil. The data indicate that (1) sulfides of the "B" limestone ore deposits are...
Arthur S. Radtke, Bernard J. Scheiner
1971, Economic Geology (66) 201-201
No abstract available....
Frank G. Lesure
1971, Economic Geology (66) 178-186
Gold is present in weathered wall rock and quartz veins of the opencut of the Calhoun mine, Lumpkin County, Georgia. Eleven samples of mica schist saprolite contain 0.02 to 0.1 parts per million (ppm) gold and three samples of weathered vein quartz, 0.04 to 0.6...
Winchell Smith
1971, Journal of the American Water Resources Association (7) 69-78
The need for accurate, independent records of flow on the Columbia River at The Dalles, Oregon, has been met by the installation of an acoustic streamflow-measuring system. This device provides an index of the velocity of flow by...
Richard R. Doell, A. Cox
1971, Science (171) 248-254
We have considered several different types of records of long-period geomagnetic secular variation: direct measurements made in geomagnetic observatories; paleomagnetic measurements on Hawaiian lava flows with accurately known ages in the interval 0 to 200 years; paleomagentic measurements on Hawaiian lava flows with loosely determined ages within the interval 200...
Erk Reimnitz
1971, Bulletin of the Geological Society of America (82) 81-89
A previously unreported process was observed at the head of a tributary to the Rio Balsas submarine canyon system in Mexico. During a period of large surf, river discharge deflected a pulsating longshore current [peaking at over 7 km/hr (2 m/sec)] seaward over the tributary...
Oscar J. Ferrians
1971, Open-File Report 1775 MP
No abstract available....
Harlan H. Schwob
1971, Report
Flood information is reported for 338 miles of the main stem and six tributaries of the Wapsipinicon River. The information will be of use to those concerned with the design of bridges and other structures and the conduct of various operations on the flood plains of the streams. Included in...
J. M. Knott
1971, Report
The Middle Fork Eel River basin has a drainage area of 753 square miles and is in a mountainous area on the western flank of the coast ranges in northern California. Elevations in the basin range from about 860 feet above mean sea level at the confluence with the Eel...
Richard J. Janda
1971, Bulletin of the Geological Society of America (82) 67-79
Computations of chemical denudation rates (that is, the average rate of lowering of the earth's crust by chemical processes) should be based only upon those components of dissolved loads of streams that are derived from chemical weathering of rocks and soils, even though identification of those components is difficult and...
U.S. Geological Survey
1971, Basic Data Contribution 17
No abstract available....
Marvin W. Skougstad
Helen L. Cannon, Howard C. Hopps, editor(s)
1971, Book chapter, Environmental geochemistry in health and disease
A complete characterization of natural waters includes a determination of the concentrations of 30 or more minor elements. Emission spectrochemical methods are uniquely suited to the determination of a comparatively large number...
K.T. Gunard
1971, Report
No abstract available....
R. Ernest Anderson
1971, Bulletin of the Geological Society of America (82) 43-58
Volcanic rocks of late Tertiary age, aggregating about 17,000 ft, accumulated on a surface of low relief cut on Precambrian rocks in the Basin and Range province south of Lake Mead, in Nevada and Arizona. They consist mostly of lava and flow breccia of intermediate composition with minor ash-flow tuff,...
Helen L. Cannon, Barbara M. Anderson
Helen L. Cannon, Howard C. Hopps, editor(s)
1971, Book chapter, Environmental geochemistry in health and disease
The geochemist can contribute much information of value toward assessing the effect of environment, including inorganic pollution, on health....
Richard T. Sniegocki
1971, Eos Science News (52) 26-26
An international Conference on Artificial Groundwater Recharge was held at the University of Reading, Whiteknights Park, Reading, Berkshire, England, sponsored by the Water Research Association, Medmenham, Marlow, Buckinghamshire. One hundred sixty-one delegates, representing 20 countries, registered. Five excellent tours...
David Robert Waldbaum, Richard A. Robie
1971, Zeitschrift für Kristallographie — Crystalline Materials (134) 381-420
Heat of solution measurements of the enthalpies of Na-K mixing, Al-Si ordering, and fusion for crystalline solutions and end-member phases in the system Na(AlSi3O8)–K(AlSi3O8) were obtained with a vacuum-jacketed, isoperibolic calorimeter using 20.1 percent hydrofluoric acid at temperatures ranging from 40 to 60°C. Heat of solution data for artificially prepared...
John P. Lockwood
Thomas W. Donnelly, editor(s)
1971, Book chapter, Caribbean geophysical, tectonic, and petrologic studies
Small lenses of detrital serpentinite, completely surrounded by massive serpentinite, occur within a sequence of Mesozoic phyllites and metasiltstones in the Cerros de Parashi area, Guajira Peninsula. These lenses, which are as...