| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8043060 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2013 | 5 Pages |
Abstract
For a comparison study, sediment samples from two cores located in the Arctic Ocean (HLY0503-09JPC, HLY0503-14JPC) were used. The authigenic 10Be/9Be ratio of these samples had been determined previously applying the conventional method where 10Be and 9Be concentrations are measured separately by AMS and ICP-MS, respectively. The resulting sedimentation rates are in discrepancy with values derived from biomarkers. To cross check the 10Be/9Be based age model two samples from each core were measured again with the new carrier-free method. The carrier-free results show systematically higher authigenic 10Be/9Be ratios. The calculated sedimentation rates of about 0.2Â cm/kyr, however, are consistent for the carrier free and the conventional method.
Related Topics
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Materials Science
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Authors
Johannes Lachner, Marcus Christl, Hans-Arno Synal, Martin Frank, Martin Jakobsson,