More evidence that the Chicxulub impact predates the K/T mass extinction
- Author: Keller, G., Adatte, Th., Stinnesbeck, W., Stüben, D., Berner, Z., Kramar, U. and Harting, M.
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Source:
Meteorites & Planetary Science 39 (7), 1127-1144 (Abstract available online at http://meteoritics.org/
) (2004)