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.


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Saved (final revised paper)

Latest update: 16 Oct 2021
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