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Pelagic Barite

Tracer of Ocean Productivity and a Recorder of Isotopic Compositions of Seawater S, O, Sr, Ca and Ba

Published online by Cambridge University Press:  23 December 2020

Weiqi Yao
Affiliation:
University of Toronto
Elizabeth Griffith
Affiliation:
Ohio State University
Adina Paytan
Affiliation:
University of California, Santa Cruz

Summary

Reconstruction of ocean paleoproductivity and paleochemistry is paramount to understanding global biogeochemical cycles such as the carbon, oxygen and sulfur cycles and the responses of these cycles to changes in climate and tectonics. Paleo-reconstruction involves the application of various tracers that record seawater compositions, which in turn may be used to infer oceanic processes. Several important tracers are incorporated into pelagic barite, an authigenic mineral that forms in the water column. Here we summarize the utility of pelagic barite for the reconstruction of export production and as a recorder of seawater S, O, Sr, Ca and Ba.
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Online ISBN: 9781108847162
Publisher: Cambridge University Press
Print publication: 28 January 2021

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