Discovering the ocean's past through geochemistry

Zanna Chase, Michael J. Ellwood, Tina Van De Flierdt

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)


    race elements and isotopes underlie many of the proxies used to reconstruct past ocean conditions. These proxies, recorded in diverse archives, are used to reconstruct seawater properties such as temperature, pH, and oxygen, or oceanic processes such as circulation, nutrient uptake, and biological productivity. Proxy calibration and validation requires a combination of ocean sediment core-top measurements, sediment trap studies, and laboratory- or field-based observations. New measurements of proxies in the modern ocean are rapidly illuminating the scope and limitations of each proxy while also helping to identify and evaluate new geochemical proxies that are based on trace elements and their isotopes.

    Original languageEnglish
    Pages (from-to)397-402
    Number of pages6
    Issue number6
    Publication statusPublished - 2018


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