A Cenozoic record of seawater uranium in fossil corals
Abstract
We measured U/Ca ratios, 4He concentrations, 234U/238U, and 238U/235U in a subset of well-preserved aragonitic scleractinian fossil corals previously described by Gothmann et al. (2015). Comparisons of measured fossil coral He/U ages with the stratigraphic age demonstrate that well-preserved coral aragonite retains most or all of its radiogenic He for 10’s of millions of years. Such samples must be largely or entirely free of alteration,...
Paper Details
Title
A Cenozoic record of seawater uranium in fossil corals
Published Date
Apr 1, 2019
Volume
250
Pages
173 - 190
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