14C age and vertical mixing of deep-sea sediments |
| |
| Authors: | Helmut Erlenkeuser |
| |
| Institution: | Institut für Reine und Angewandte Kernphysik, C-14 Labor, Universität Kiel, Olshausenstrasse 40–60, 2300 Kiel Federal Republic of Germany |
| |
| Abstract: | 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. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
