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    The relationship of cooling history and stability in two suites of igneous rocks

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    Author
    Hickcox, Alice Ellen
    Date
    1972
    Advisor
    Clark, H. C.
    Degree
    Master of Arts
    Abstract
    In field sampling for paleomagnetic study, one always hopes to choose the most stable samples available in order to obtain reliable information about the earth's ancient magnetic field. If the remanence is unstable, of course, the direction and intensity of the magnetization may have changed through time, thus diminishing the value of the field effort, its time and expense. It was our hope in this study to find reliable methods to choose samples in the field by studying the position of a sample in the sill or flow versus its cooling history, and then the relationship of cooling history to stability. AC demagnetization was used to evaluate the stability of the samples. Petrographic examination under reflected light determined the composition and oxidation state of the opaque minerals. Recent work has indicated that oxidation states and stability are closely related (Watkins and Haggerty, 1967, Ade-Hall et al., 1968). We hoped to extend the generality of that relationship and examine its connection to cooling history.
    Citation
    Hickcox, Alice Ellen. "The relationship of cooling history and stability in two suites of igneous rocks." (1972) Master’s Thesis, Rice University. https://hdl.handle.net/1911/90025.
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    Home | FAQ | Contact Us | Privacy Notice | Accessibility Statement
    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892
    Site Map