News and Views
Nature Geoscience 1, 86 - 88 (2008)
doi:10.1038/ngeo118
Subject Category: Palaeoclimate and palaeoceanography
Palaeoclimate: The riddle of the clays
Gerald R. Dickens1
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Gerald R. Dickens is in the Department of Earth Sciences, Rice University, 6100 Main Street, Houston, Texas 77005, USA.
e-mail: jerry@rice.edu
Abstract
Rising carbon levels contributed to profound climate change 55 million years ago. Where did that extra carbon come from? One proposal — a cometary impact — is rebuffed by two analyses of magnetic particles in clay sediment cores from New Jersey.
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