Computer Science
Scientific paper
Mar 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988e%26psl..87..379b&link_type=abstract
Earth and Planetary Science Letters, Volume 87, Issue 4, p. 379-389.
Computer Science
7
Scientific paper
Radiocarbon measurements performed on seawater samples by means of accelerator mass spectrometry (AMS) enable to reduce by a factor of 2000 the water sample size needed for the 14C measurements. Therefore no chemical treatment on board the oceanographic vessel is required. Seventy-four AMS 14C determinations on samples collected in the tropical-equatorial Indian Ocean during the second leg of the INDIGO program (1986) are presented and compared with the β-counting results obtained during the same campaign and the GEOSECS program (1978). A pronounced reduction of the equatorial 14C deficit suggests that substantial amounts of bomb-14C are associated with the westward flowing Pacific water which enters the Indian Ocean via passages through the Indonesia archipelago and/or to meridional mixing with 14C-rich water of the southern subtropical gyre.
Arnold Maurice
Bard Edouard
Duplessy Jean-Claude
Göte Östlund H.
Maurice Pierre
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