On the thickness and the14C age of the mixed layer in deep-sea carbonates |
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| Authors: | WH Berger RF Johnson |
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| Institution: | Scripps Institution of Oceanography, La Jolla, CA 92093 U.S.A. |
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| Abstract: | Published14C stratigraphies from three cores, and14C dates from four additional cores suggest that the simple mixing model of Berger and Heath (1968) can be used to simulate the effects of benthic mixing in deep-sea carbonates. Mixing depths calculated under the constraints of this model are remarkably constant (81/2 ± 1cm). Discrepancies between calculations and observations exist and may be due mainly to differential mixing (effects of size and shape) in combination with changes in sedimentation rates, and to lumpy mixing (effects of displacement of blebs or “noise”). |
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