| Description: |
Here scientists present a new record of seawater δ26Mg from a set of well-preserved fossil corals, ranging in age from Paleocene to Recent. Fossil coral δ26Mg decreases by ∼0.3‰ between the early Cenozoic and the Oligocene, then increases by ∼0.15‰ between the Oligocene and present, in strong agreement with the published record derived from bulk pelagic carbonate. [Source: Geology]
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