End-cretaceous cooling and mass extinction driven by a dark cloud encounter
We have identified iridium in an ~5 m-thick section of pelagic sediment cored in the deep sea floor at Site 886C, in addition to a distinct spike in iridium at the K-Pg boundary related to the Chicxulub asteroid impact. We distinguish the contribution of the extraterrestrial matter in the sediments...
| Main Authors: | , , |
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| Format: | Report |
| Language: | unknown |
| Published: |
arXiv
2016
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.48550/arxiv.1603.06136 https://arxiv.org/abs/1603.06136 |