Cerium Anomalies and Paleoredox

Paperback / softback

Main Details

Title Cerium Anomalies and Paleoredox
Authors and Contributors      By (author) Rosalie Tostevin
SeriesElements in Geochemical Tracers in Earth System Science
Physical Properties
Format:Paperback / softback
Pages:75
Dimensions(mm): Height 150,Width 230
Category/GenreEarth sciences
Geology and the lithosphere
ISBN/Barcode 9781108810739
ClassificationsDewey:546.412593
Audience
Professional & Vocational
Illustrations Worked examples or Exercises

Publishing Details

Publisher Cambridge University Press
Imprint Cambridge University Press
Publication Date 25 February 2021
Publication Country United Kingdom

Description

Ce anomalies track changes in oxygen availability due to the anomalous redox-sensitivity of Ce compared with the other rare earth elements. The proxy systematics have been calibrated experimentally as well as in modern anoxic water bodies. Ce anomalies are unique because they track intermediate manganous conditions, rather than fully anoxic conditions. In addition, they are sensitive to local-regional redox conditions, and can be analysed in chemical sediments such as carbonate rocks. This makes them especially useful as a tool to track local oxygen distribution in shallow shelf environments, where biodiversity is highest. This review focusses on the systematics of the Ce anomaly proxy, the preservation and extraction of the signal in sedimentary rocks, and the potential applications of the proxy.