50 Myr recovery from the largest negative δ 13 C excursion in the Ediacaran ocean

Le Guerroue, Erwan; Allen, Philip A; Cozzi, Andrea; Etienne, James L; Fanning, Christopher

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50 Myr recovery from the largest negative δ 13 C excursion in the Ediacaran ocean

Date

2006

Authors

Le Guerroue, Erwan

Allen, Philip A

Cozzi, Andrea

Etienne, James L

Fanning, Christopher

Publisher

Blackwell Publishing Ltd

Abstract

Sedimentary rocks deposited during the Ediacaran period (∼630542 Ma) contain carbonates whose carbon isotopic ratios show a marked negative excursion consisting of a precipitous drop from +5‰ to - 12‰, followed by a sub-linear recovery to positive �