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Thorium Isotopes Method for Dating Marine Sediments

This thesis is concerned with a possible method of improving the well-known ionium method of age determination of deep-sea sediment sections (Pet-53, Zou-58, Kul-55, Ran-54) both with respect to accuracy of individual determinations and with respect to the range of applicability of the method.

Date: May 31, 1960

Creator: Almodóvar, Ismael

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Pebble Bed Friction Factor and Thermal Expansion Tests

Tests were conducted to determine the friction factor of randomly packed beds of 3/4-inch diameter spheres in 8-inch and 15-1/4-inch diameter beds, and of 1-1/2-inch diameter spheres in 15-1/4-inch diameter bed. The bed depths were varied in an attempt to isolate the effects of entrance and exit losses. The bed Reynolds number, base on sphere diameter, was varied from 5,000 to 50,000.

Date: August 31, 1960

Creator: Leeman, C. A.