Comment on "Calcareous Nannoplankton Response to Surface-Water Acidification Around Oceanic Anoxic Event 1a"

Erba et al. (Reports, 23 July 2010, p. 428) attributed calcareous nannofossil morphology and assemblage changes across Cretaceous Oceanic Anoxic Event 1a to the effects of surface ocean acidification. We argue that the quality of carbonate preservation in these sequences, the unsupported assumptions...

Full description

Bibliographic Details
Published in:Science
Main Authors: Gibbs, S.J., Robinson, S.A., Bown, P.R., Jones, T.D., Henderiks, J.
Format: Article in Journal/Newspaper
Language:unknown
Published: 2011
Subjects:
Ocean acidification
Online Access:https://eprints.soton.ac.uk/183475/
Description
Summary:Erba et al. (Reports, 23 July 2010, p. 428) attributed calcareous nannofossil morphology and assemblage changes across Cretaceous Oceanic Anoxic Event 1a to the effects of surface ocean acidification. We argue that the quality of carbonate preservation in these sequences, the unsupported assumptions of the biotic response to acidity, and the absence of independent proxy estimates for ocean pH or atmospheric pCO2 render this conclusion questionable.

Similar Items