Reports

Origin of Oceanic Manganese Minerals

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Science  10 Apr 1964:
Vol. 144, Issue 3615, pp. 170-173
DOI: 10.1126/science.144.3615.170

Abstract

A criterion is suggested for discrimination between ferromanganese oxide minerals, deposited after the introduction of manganese and associated elements in sea water solution at submarine vulcanism, and minerals which are slowly formed from dilute solution, largely of continental origin. The simlultaneous injection of thorium into the ocean by submarine vulcanism is indicated, and its differentiation from continental thorium introduced into the ocean by runoff is discussed.

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