geochemist

[jee-oh-kem-ist]

noun

1. a scientist in the field of geochemistry.

Example Sentences

Geochemist Valérie Daux of the University Paris-Saclay and her doctoral student, Diane du Boisgueheneuc, analyzed cellulose in the wood samples for changes over time in levels of the isotopes carbon-13 and oxygen-18, which are proxies for fluctuations in temperature and humidity.

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The team, led by CU Boulder geochemist Ashley Maloney, will publish its findings this week in the Proceedings of the National Academy of Sciences.

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“We found evidence for two things: There was land above sea level and, at the same, that this land interacted with freshwater,” says Hamed Gamaleldien, a geochemist at Khalifa University who presented the results this month at a conference of the European Geosciences Union.

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Although some researchers are skeptical about the result, Beth Ann Bell, a geochemist at the University of California, Los Angeles, says it “makes sense.”

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John Valley, an isotope geochemist at the University of Wisconsin–Madison, adds that Gamaleldien and his colleagues base their conclusions on the assumption that Hadean seawater was isotopically similar to modern seawater, when some researchers think it might have been lighter—and able to mimic the effect of freshwater.

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