Evidence for contamination of recent Hawaiian lavas from 230Th-238U data

Details Evidence for contamination of recent Hawaiian lavas from 230Th-238U data Evidence for contamination of recent Hawaiian lavas from 230Th-238U data

Nov 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976e%26psl..33..122c&link_type=abstract

Earth and Planetary Science Letters, Volume 33, Issue 1, p. 122-125.

Physics

3

Scientific paper

230Th-238U radioactive disequilibrium was studied in the historical lava flows of the Mauna Loa and Kilauea, Hawaii. Large variations of the (230Th/232Th) ratio among lavas of the same volcano that were erupted at a few years' interval are interpreted as due to contamination. The contamination probably occurs by assimilation of zeolitic minerals formed by seawater interaction while the magma resides in a superficial chamber.

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