Date of Award

Fall 1971

Document Type


Degree Name

Master of Science (MS)


Ocean & Earth Sciences



Committee Director

John C. Ludwick

Committee Member

William J. Hanna

Committee Member

Donald M. Oglesby

Committee Member

George M. Poor

Call Number for Print

Special Collections LD4331.O35B66


An evaluation of the application of dysprosium oxide as a tracer coating to surface label sedimentary particles is made. Physical and chemical properties of the labeled sand are studied. Effective diameters and settling properties of the tracer sand are compared with unlabeled sand. A total of 8.51 kg of labeled sand was placed on the beach at Camp Pendleton. Dispersal patterns obtained 1 and 4 hours after tracer injection indicate a general down current mean tracer migration rate of 0.21 cm/sec (0.42ft/sec). An absolute detection limit of 4 or 5 parts per 100,000 and a real detection limit, after field dilution, of 1 part per 10,000 was obtained. Discussion of the future application of the stable isotope method is presented.


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