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Science 19 November 1965:
Vol. 150. no. 3699, pp. 1022 - 1025
DOI: 10.1126/science.150.3699.1022
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Articles

Titanium Dioxide in Pyroclastic Layers from Volcanoes in the Cascad Range

Gerald K. Czamanske 1 and Stephen C. Porter 1

1 Department of Geology, University of Washington, Seattle

Rapid determinations of titanium dioxide have been made by x-ray emission techniques to evaluate the potentiality of using the TiO2 content of samples for checking field correlations and assisting in identification of pyroclastic units from Cascade volcanoes. Preliminary data suggest that the two most wide-spread units have characteristic ranges of TiO2 content and that other, less extensive layers have ranges which, though characteristic, often overlap the ranges of the more widespread layers. Relative to fresh samples,. weathered samples from B and C soil horizons are enriched in TiO2.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Neutron Activation for Distinguishing Cascade Range Pyroclastics.
A. A. Theisen, A. A. Theisen, G. A. Borchardt, M. E. Harward, and R. A. Schmitt (1968)
Science 161, 1009-1011
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Science. ISSN 0036-8075 (print), 1095-9203 (online)