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

184617 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 6765, results 169101 - 169125

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Summary of new data on rock samples G-1 and W-1
M. Fleischer, R.E. Stevens
1962, Geochimica et Cosmochimica Acta (26) 525-543
Published and unpublished analyses for major and minor constituents that have become available since April, 1960, are collected for the granite G-1 and diabase W-1. “Best values” are suggested for some of the elements....
Surface Water Records of Colorado
Water Resources Division U.S. Geological Survey
1962, Water Data Report CO-62-1
The surface-water records for the 1962 water year for gaging stations and miscellaneous sites within the State of Colorado are given in this report. For convenience there are also included records for a few pertinent gaging stations in bordering States. The records were collected and computed by the Water Resources...
Behaviour of calcium carbonate in sea water
P. E. Cloud Jr.
1962, Geochimica et Cosmochimica Acta (26) 867-884
Anomalies in the behaviour of calcium carbonate in natural solutions diminish when considered in context. Best values found by traditional oceanographie methods for the apparent solubility product constant K'CaCO3 in sea water at atmospheric pressure are consistent mineralogically—at 36 parts per thousand salinity and T-25°C, K'aragonlte is...
Elastic constants of calcite
L. Peselnick, R. A. Robie
1962, Journal of Applied Physics (33) 2889-2892
The recent measurements of the elastic constants of calcite by Reddy and Subrahmanyam (1960) disagree with the values obtained independently by Voigt (1910) and Bhimasenachar (1945). The present authors, using an ultrasonic pulse technique at 3 Mc and 25°C, determined the elastic constants of calcite using the exact equations governing the wave velocities in the single crystal. The results are C11=13.7, C33=8.11, C44=3.50, C12=4.82, C13=5.68, and C14=−2.00,...
A photoelectric amplifier as a dye detector
Wesley J. Ebel
1962, Technical Report 4
A dye detector, based on a modified photoelectric amplifier, has been planned, built, and tested. It was designed to record automatically the time of arrival of fluorescein dye at predetermined points in a stream system. Laboratory tests and stream trials proved the instrument to be efficient. Small changes in color...
Estimation of the brook and sea lamprey ammocoete populations of three streams
Bernard R. Smith, Alberton L. McLain
1962, Technical Report 4
Marking experiments on three streams in the Upper Peninsula of Michigan yielded quantitative estimates of populations of larval and transforming lampreys. The estimates not only gave an idea as to the numbers of ammocetes in the streams, but also confirmed the judgments of abundance based on earlier surveys with electric-shocking...
Records of selected wells and springs, selected drillers' logs of wells, and chemical analyses of ground and surface waters, northern Utah Valley, Utah County, Utah
Seymour Subitsky
1962, Utah Basic-Data Report 2
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 1956-59 by the U.S. Geological Survey...
Thorium and rare earths in the United States, exclusive of Alaska and Hawaii
J. C. Olson, J. W. Adams
1962, Mineral Investigations Resource Map 28
The accompanying map shows the location of the principal deposits of thorium and rare-earth minerals in the United States (excluding Alaska and Hawaii). Symbols of different shapes are used to depict deposits of different geologic types, and sizes of symbols denote the relative importance of the deposits. Because of scale...
Magnesite and brucite in the United States, exclusive of Alaska and Hawaii
Benjamin Gildersleeve
1962, Mineral Investigations Resource Map 27
The important deposits of magnesite (MgCO3) and brucite (MgO.H2O) in the United States (exclusive of Alaska and Hawaii) are shown on the accompanying map. Single deposits and groups of deposits are shown by geometric symbols according to four size categories based on estimated production plus reserves. These categories are: less...
The solubility of quartz in water in the temperature interval from 25° to 300° C
G.W. Morey, R.O. Fournier, J.J. Rowe
1962, Geochimica et Cosmochimica Acta (26) 1029-1040
The solubility of quartz in water was investigated by three sets of experiments at 1000 atm PH2O and temperatures ranging from 45° to 300°C at water pressures appropriate for the coexistence of three phases, gaseous water, liquid, and quartz, at temperatures ranging from 69° to 240°C a long term study of the...
The effect of CO2 at low temperature and pressure on solutions supersaturated with silica in the presence of limestone and dolomite
T.G. Lovering, L.E. Patten
1962, Geochimica et Cosmochimica Acta (26) 787-796
The effect of 1 atm of CO2 over initially neutral solutions supersaturated with silica, at room temperature, as contrasted with 1 atm of air was determined over a period of 5 months, together with changes brought about by the introduction of calcite and dolomite to these solutions in the form of...
Problem of the thermodynamic status of the mixed-layer minerals
E-An Zen
1962, Geochimica et Cosmochimica Acta (26) 1055-1067
Minerals that show mixed layering, particularly with the component layers in random sequence, pose problems because they may behave thermodynamically as single phases or as polyphase aggregates. Two operational criteria are proposed for their distinction. The first scheme requires two samples of mixed-layer material which differ only in the proportions...
Temperature dependence of decay time and intensity of alpha pulses in pure and thallium-activated cesium iodide
F. E. Senftle, P. Martinez, V. P. Alekna
1962, Review of Scientific Instruments (33) 819-822
The intensity and decay time of Po210 alpha particle scintillations produced in pure and thallium‐activated cesium iodide have been measured with a fast electronic system as a function of temperature down to 77°K. Three modes of decay due to alpha excitation have been observed for CsI(Tl), and two for CsI. Other than...
The detection of sulphur in contamination spots in electron probe X-ray microanalysis
I. Adler, E.J. Dwornik, H. J. Rose Jr.
1962, British Journal of Applied Physics (13) 245-246
Sulphur has been identified as one of the elements present in the contamination spot which forms under the electron beam in the microprobe. The presence of the sulphur results in a rapid change in intensity measurements causing a loss of observed intensity for elements other than sulphur. The source of...
Nordstrandite from Guam
J.C. Hathaway, S.O. Schlanger
1962, Nature (196) 265-266
NORDSTRANDITE (Al2O3·3H2O), previously reported only as a synthetic product1,2, occurs in Miocene limestone on Guam. In south Guam this limestone forms a cap several hundred feet thick, on the Mount Alifan–Mount Lamlan ridge, and overlies late Eocene and early Miocene basalt flows and volcanic conglomerates. The volcanic rocks below the...