Radiocarbon dating of deep-sea corals

被引：53

作者：

Adkins, JF

Griffin, S

Kashgarian, M

Cheng, H

Druffel, ERM

Boyle, EA

Edwards, RL

Shen, CC

机构：

[1] MIT, WHOI Joint Program Oceanog, Cambridge, MA 02139 USA

[2] Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA

[3] Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA

[4] Univ Minnesota, Dept Geol & Geophys, Minneapolis, MN 55455 USA

[5] MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 USA

来源：

RADIOCARBON | 2002年 / 44卷 / 02期

关键词：

D O I：

10.1017/S0033822200031921

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Deep-sea corals are a promising new archive of paleoclimate. Coupled radiocarbon and U-series dates allow C-14 to be used as a tracer of ocean circulation rate in the same manner as it is used in the modern ocean. Diagenetic alteration of coral skeletons on the seafloor requires a thorough cleaning of contaminating phases of carbon. In addition, 10% of the coral must be chemically leached prior to dissolution to remove adsorbed modern CO2. A survey of modern samples from the full Delta(14)C gradient in the deep ocean demonstrates that the coralline CaCO3 records the radiocarbon value of the dissolved inorganic carbon.

引用

页码：567 / 580

页数：14

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