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Science 8 November 1974:
Vol. 186. no. 4163, pp. 529 - 531
DOI: 10.1126/science.186.4163.529
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Articles

Manganese and Biotic Debris Associations in Some Deep-Sea Sediments

J. Greenslate 1

1 Geological Research Division, Scripps Institution of Oceanography. La Jolla, California 92037

Incipient manganese concretions occur in microcavities of planktonic skeletal debris (especially diatom frustules) in some Pacific Basin deep-sea sediments. These concretions contain over 50 percent manganese and very little iron (< 1 percent). There is a continuum of growth stages in the concretions having a diameter between 0 and approximately 2 millimeters, and a genetic relationship is suggested between the very small and the centimeter sized concretions.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Arctic Oceanic Climate in Late Cenozoic Time.
Y. Herman, Y. Herman, and D. M. Hopkins (1980)
Science 209, 557-562
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