Response to Comment on "Calcareous Nannoplankton Response to Surface-Water Acidification Around Oceanic Anoxic Event"

Gibbs et al. question our reconstruction of surface- and deepwater acidification around Oceanic Anoxic Event 1a. We answer their criticisms to better substantiate our arguments and original conclusions. Contrary to their suggestion, preservation cannot explain the nannofossil changes we documented,...

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Published inScience (American Association for the Advancement of Science) Vol. 332; no. 6026; p. 175
Main Authors Erba, Elisabetta, Bottini, Cinzia, Weissert, Helmut J, Keller, Christina E
Format Journal Article
LanguageEnglish
Published 08.04.2011
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Summary:Gibbs et al. question our reconstruction of surface- and deepwater acidification around Oceanic Anoxic Event 1a. We answer their criticisms to better substantiate our arguments and original conclusions. Contrary to their suggestion, preservation cannot explain the nannofossil changes we documented, which trace perturbations in the photic zone, including a substantial increase in partial pressure of CO2 (pCO2) and an inferred decreased pH as derived from geochemical proxies.
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ISSN:0036-8075