14C age and vertical mixing of deep-sea sediments

Details 14C age and vertical mixing of deep-sea sediments 14C age and vertical mixing of deep-sea sediments

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980e%26psl..47..319e&link_type=abstract

Earth and Planetary Science Letters, Volume 47, Issue 3, p. 319-326.

Physics

3

Scientific paper

Vertical mixing models applied to the radiocarbon age stratigraphy of sediments have to make allowance for the presumably non-vanishing zero-age of the sedimentary particulates freshly arriving at the sediment surface. The appropriate modifications of the simple box model recently presented by Berger and Johnson are outlined. For seven deep-sea cores, zero-age values are found varying between 0.1 and 1.4 kyr. A high zero-age is likely to be indicative for redistribution processes occurring at the sea floor. The box model has been extended to make allowance for a change of sedimentation rate in the depositional interval under study.

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