Articles | Volume 11, issue 23
Biogeosciences, 11, 7077–7095, 2014
Biogeosciences, 11, 7077–7095, 2014

Research article 12 Dec 2014

Research article | 12 Dec 2014

I/Ca ratios in benthic foraminifera from the Peruvian oxygen minimum zone: analytical methodology and evaluation as a proxy for redox conditions

N. Glock et al.


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Nicolaas Glock on behalf of the Authors (07 Oct 2014)  Author's response    Manuscript
ED: Publish as is (21 Oct 2014) by Hiroshi Kitazato
Short summary
Our study explores the correlation of I/Ca ratios in four benthic foraminiferal species (three calcitic, one aragonitic) from the Peruvian OMZ with bottom water oxygenation ([O2]BW), and evaluates foraminiferal I/Ca ratios as a possible redox proxy. All species have a positive trend in the I/Ca ratios as a function of [O2]BW. Only for the aragonitic species Hoeglundina elegans is this trend not significant. The highest significance has been found for Uvigerina striata.
Final-revised paper