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Science 2 February 1979:
Vol. 203. no. 4379, pp. 445 - 446
DOI: 10.1126/science.203.4379.445
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Articles

Tritium and Carbon-14 Distributions in Seawater from Under the Ross Ice Shelf Project Ice Hole

R. L. MICHEL 1, T. W. LINICK 2, and P. M. WILLIAMS 3

1 Scripps Institution of Oceanography, University of California, San Diego, La Jolla 92093
2 Chemistry Department, University of California, San Diego
3 Institute of Marine Resources, University of California, San Diego

The tritium and carbon-14 activities of seawater samples collected from 22 to 200 meters below the ice at the Ross Ice Shelf Project ice hole are reported. The tritium results show that the waters below the ice have exchanged with Ross Sea water since the advent of nuclear testing. The carbon-14 results indicate that waters in the upper layer exchange in time periods of less than 6 years. Measurements of these isotopes in seawater under the Ross Ice Shelf in McMurdo Sound show that this water has a different history.

Submitted on July 5, 1978
Revised on September 5, 1978


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Occurrence and Metabolic Activity of Organisms Under the Ross Ice Shelf, Antarctica, at Station J9.
F. Azam, F. AZAM, J. R. BEERS, L. CAMPBELL, A. F. CARLUCCI, O. HOLM-HANSEN, F. M. H. REID, and D. M. KARL (1979)
Science 203, 451-453
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