Global analysis reveals climatic controls on the oxygen isotope composition of cave drip water.
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ABSTRACT:
SUBMITTER: Baker A
PROVIDER: S-EPMC6611902 | biostudies-literature | 2019 Jul
REPOSITORIES: biostudies-literature
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Global analysis reveals climatic controls on the oxygen isotope composition of cave drip water.
Baker Andy A Hartmann Andreas A Duan Wuhui W Hankin Stuart S Comas-Bru Laia L Cuthbert Mark O MO Treble Pauline C PC Banner Jay J Genty Dominique D Baldini Lisa M LM Bartolomé Miguel M Moreno Ana A Pérez-Mejías Carlos C Werner Martin M
Nature communications 20190705 1
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 δ<sup>18</sup>O. Here, we present the first global analysis, based on data from 163 drip sites, from 39 caves on five continents, showing that drip water δ<sup>18</sup>O is most similar to the amount-weighted precipitation δ<sup>18</sup>O where mean annual temperature (MAT) is < 10 °C. By contras ...[more]
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