Global analysis reveals climatic controls on the oxygen isotope composition of cave drip water

Andy Baker (), Andreas Hartmann, Wuhui Duan, Stuart Hankin, Laia Comas-Bru, Mark O. Cuthbert, Pauline C. Treble, Jay Banner, Dominique Genty, Lisa M. Baldini, Miguel Bartolomé, Ana Moreno, Carlos Pérez-Mejías and Martin Werner
Additional contact information
Andy Baker: UNSW Sydney
Andreas Hartmann: UNSW Sydney
Wuhui Duan: UNSW Sydney
Stuart Hankin: ANSTO
Laia Comas-Bru: University College Dublin, Belfield
Mark O. Cuthbert: UNSW Sydney
Pauline C. Treble: UNSW Sydney
Jay Banner: The University of Texas at Austin
Dominique Genty: Université de Bordeaux
Lisa M. Baldini: Durham University
Miguel Bartolomé: Instituto Pirenaico de Ecología-CSIC
Ana Moreno: Instituto Pirenaico de Ecología-CSIC
Carlos Pérez-Mejías: Instituto Pirenaico de Ecología-CSIC
Martin Werner: Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research

Nature Communications, 2019, vol. 10, issue 1, 1-7

Abstract: Abstract The oxygen isotope composition of speleothems is a widely used proxy for past climate change. Robust use of this proxy depends on understanding the relationship between precipitation and cave drip water δ18O. Here, we present the first global analysis, based on data from 163 drip sites, from 39 caves on five continents, showing that drip water δ18O is most similar to the amount-weighted precipitation δ18O where mean annual temperature (MAT) is 10 °C and

Date: 2019
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DOI: 10.1038/s41467-019-11027-w

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