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Science 2 November 1979:
Vol. 206. no. 4418, pp. 563 - 565
DOI: 10.1126/science.206.4418.563
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Articles

Morphologies and Origin of Elemental Carbon in the Environment

JOHN J. GRIFFIN 1 and EDWARD D. GOLDBERG 1

1 Scripps Institution of Oceanography, University of California, San Diego, La Jolla 92093

Carbon particles extracted from sediments collected by box coring from southeastern Lake Michigan were compared with carbon particles extracted from oil, coal, and wood fly ash. Sediments deposited after 1900 contained coal, oil, and wood carbons; older sediments contained only wood carbon.

Submitted on March 1, 1979
Revised on May 4, 1979


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