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Variations in Oxygen Isotope Abundances in Rock Minerals


Clayton, Robert Norman (1955) Variations in Oxygen Isotope Abundances in Rock Minerals. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/SN3M-5S20.


Analytical techniques for determination of oxygen isotope abundances in silicates and oxides have been investigated. The reduction of compounds with carbon at high temperatures gives reliable results only from a few important minerals, including quartz and iron oxides. Liberation of oxygen from compounds using fluorine has more wide-spread application, but is more susceptible to errors by contamination. Oxygen isotope analyses have been made on nineteen natural samples of quartz and associated carbonates, and on seventeen samples of quartz and associated iron oxides. It has been found that, for suitable samples, the isotopic fractionation measured between two associated minerals can be used to fix the temperature at which the minerals crystallized. Several geological problems are discussed on the basis of the oxygen isotope data. In cases where the geological evidence is clear-cut, the conclusions from the isotope analyses are in complete agreement with those from geological reasoning.

Item Type:Thesis (Dissertation (Ph.D.))
Subject Keywords:(Chemistry and Mathematics)
Degree Grantor:California Institute of Technology
Division:Chemistry and Chemical Engineering
Major Option:Chemistry
Minor Option:Mathematics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Epstein, Samuel
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1955
Additional Information:Title varies in 1955 Caltech commencement program: Variations of Oxygen Isotope Abundances in Rock Minerals
Record Number:CaltechETD:etd-11242003-105309
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4650
Deposited By: Imported from ETD-db
Deposited On:24 Nov 2003
Last Modified:28 Jun 2023 20:50

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PDF (Clayton_rn_1955.pdf) - Final Version
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