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Coral provides way to age deep water

Abstract

We propose a new method for computing the ratio of the isotopes carbon-14 to carbon-12 in deep water from the past, and for testing the results derived from the normal method of age difference between benthic and planktic foraminifera in deep-sea sediments1.

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Mangini, A., Lomitschka, M., Eichstädter, R. et al. Coral provides way to age deep water. Nature 392, 347–348 (1998). https://doi.org/10.1038/32804

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