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 assumption...

Full description

Bibliographic Details
Published in:Science
Main Authors: Gibbs, Samantha J., Robinson, Stuart A., Bown, Paul R., Jones, Tom Dunkley, Henderiks, Jorijntje
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 2011
Subjects:
Ocean acidification
Online Access:http://dx.doi.org/10.1126/science.1199459
https://www.science.org/doi/pdf/10.1126/science.1199459
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 p CO 2 render this conclusion questionable.

Similar Items