HOW FAST DID THE OCEAN - ATMOSPHERE SYSTEM RUN DURING THE LAST DEGLACIATION

被引：81

作者：

DUPLESSY, JC

BARD, E

ARNOLD, M

SHACKLETON, NJ

DUPRAT, J

LABEYRIE, L

机构：

[1] UNIV CAMBRIDGE,GODWIN LAB QUATERNARY RES,CAMBRIDGE CB2 3RS,ENGLAND

[2] UNIV BORDEAUX 1,GEOL & OCEANOGRAPHY LAB,F-33405 TALENCE,FRANCE

来源：

EARTH AND PLANETARY SCIENCE LETTERS | 1991年 / 103卷 / 1-4期

关键词：

D O I：

10.1016/0012-821X(91)90147-A

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：

Oxygen isotope analyses performed on planktonic and benthic foraminifera in four deep sea cores show that during the last deglaciation, the meltwater isotopic signal propagated almost instantaneously in the whole North Atlantic and in less than one millennia in the Pacific and Indian deep waters. Simple box-model calculations show that this results primarily from a transitory increase, by a factor of 2 to 3, of the rate of thermohaline circulation at the beginning of the deglaciation. These results are in agreement with the C-14 age differences between benthic and planktonic foraminifera measured by Accelerator Mass Spectrometry.

引用

页码：27 / 40

页数：14

共 42 条

[1] CALIBRATION OF THE C-14 TIMESCALE OVER THE PAST 30,000 YEARS USING MASS-SPECTROMETRIC U-TH AGES FROM BARBADOS CORALS [J].