Articles | Volume 13, issue 23
Biogeosciences, 13, 6487–6505, 2016
https://doi.org/10.5194/bg-13-6487-2016
Biogeosciences, 13, 6487–6505, 2016
https://doi.org/10.5194/bg-13-6487-2016

Research article 12 Dec 2016

Research article | 12 Dec 2016

Carbonate “clumped” isotope signatures in aragonitic scleractinian and calcitic gorgonian deep-sea corals

Justine Kimball et al.

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Short summary
Deep-sea corals are a potentially valuable archive of temperature and ocean chemistry. We analyzed clumped isotope signatures (Δ47) in live-collected aragonitic scleractinian and high-Mg calcitic gorgonian deep-sea corals and compared results to published data and found offsets between taxa. The observed patterns in deep-sea corals may record distinct mineral equilibrium signatures due to very slow growth rates, kinetic isotope effects, and/or variable acid digestion fractionation factors.
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