Advertisement

Silicate Analysis—a Glance Backward and a Look Forward

  • Irving May
Part of the Developments in Applied Spectroscopy book series (DAIS, volume 8)

Abstract

Silicate rock analysis is in a state of flux. Methods are changing rapidly in response to shifting requirements of geologists and geochemists. V. M. Goldschmidt’s geochemical investigations in the 1930’s established the utility of spectrography for quantitatively determining trace elements in rocks. This technique remains the best instrumental method for yielding the maximum qualitative and quantitative information with the minimum effort. This success was followed by an ever increasing array of instrumental methods. The more significant include spectrophotometry, flame photometry, polarography, x-ray fluorescence, chromatography, atomic absorption, and neutron activation. Since World War II emphasis has been on the development of rapid methods, especially for the major and minor elements and on evermore sensitive methods for the trace elements. New field methods for geochemical prospecting and remote methods for extraterrestrial studies have been developed. Computer techniques for analyzing and recording experimental data are being developed, as many instruments produce much more information than can be assimilated by older calculating and recording methods.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    H. S. Washington, Chemical Analyses of Igneous Rocks Published from 1884 to 1913 Inclusive, U.S. Geol. Survey Prof. Paper 99, (1917).Google Scholar
  2. 2.
    F. W. Clarke and H. S. Washington, The Composition of the Earth’s Crust, U.S. Geol. Survey Prof. Paper 127 (1924), p. 4.Google Scholar
  3. 3.
    J. A. Maxwell, Rock and Mineral Analysis, Interscience, New York (1968), p. 3.Google Scholar
  4. 4.
    H. S. Washington, The Chemical Analysis of Rocks, John Wiley amp; Sons, New York (1904).Google Scholar
  5. 5.
    L. C. Peck, Systematic Analysis of Silicates, USGS Bull. 1170 (1964).Google Scholar
  6. 6.
    B. F. Scribner and W. F. Meggers, Index to the Literature on Spectrochemical Analysis, 1920–1939, American Society for Testing and Materials, Philadelphia, Pa. (1941); Part II, 1940–1945 (1947).Google Scholar
  7. 7.
    V. M. Goldschmidt, J. Chem. Soc. 665 (1937).Google Scholar
  8. 8.
    N. H. Suhr and C. O. Ingamells, Anal. Chem. 38, 730 (1966).CrossRefGoogle Scholar
  9. 9.
    L. Shapiro and W. W. Brannock, Rapid Analysis of Silicate, Carbonate, and Phosphate Rocks, USGS Bull. 1144-A (1962).Google Scholar
  10. 10.
    F. J. Flanagan, Geochim. Cosmochim. Acta 33, 6 (1969).Google Scholar

Copyright information

© Chicago Section of the Society for Applied Spectroscopy 1970

Authors and Affiliations

  • Irving May
    • 1
  1. 1.U. S. Geological SurveyUSA

Personalised recommendations