Synchronous radiocarbon and climate shifts during the last deglaciation

被引：288

作者：

Hughen, KA ^{[1
]}

Southon, JR

Lehman, SJ

Overpeck, JT

机构：

[1] Woods Hole Oceanog Inst, Dept Marine Chem & Geochem, Woods Hole, MA 02543 USA

[2] Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94551 USA

[3] Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA

[4] Univ Colorado, Dept Geol Sci, Boulder, CO 80309 USA

[5] Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA

[6] Univ Arizona, Inst Planet Earth, Tucson, AZ 85721 USA

来源：

SCIENCE | 2000年 / 290卷 / 5498期

关键词：

D O I：

10.1126/science.290.5498.1951

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Radiocarbon data from the Cariaco Basin provide calibration of the carbon-14 time scale across the period of deglaciation (15,000 to 10,000 years ago) with resolution available previously only from Holocene tree rings. Reconstructed changes in atmospheric carbon-14 are larger than previously thought, with the largest change occurring simultaneously with the sudden climatic cooling of the Younger Dryas event. Carbon-14 and published beryllium-10 data together suggest that concurrent climate and carbon-14 changes were predominantly the result of abrupt shifts in deep ocean ventilation.

引用

页码：1951 / 1954

页数：4

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