Similar rates of modern and last-glacial ocean thermohaline circulation inferred from radiochemical data

被引：294

作者：

Yu, EF ^{[1
]}

Francois, R ^{[1
]}

Bacon, MP ^{[1
]}

机构：

[1] WOODS HOLE OCEANOG INST,DEPT MARINE CHEM & GEOCHEM,WOODS HOLE,MA 02543

来源：

NATURE | 1996年 / 379卷 / 6567期

关键词：

D O I：

10.1038/379689a0

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：

Today, the ocean thermohaline circulation transports half of the Pa-231 produced by radioactive decay in the Atlantic Ocean water column to the Southern Ocean. This export respectively imparts low and high Pa-231/Th-230 ratios to the surface sediments of these oceans. Ocean sediments from the Last Glacial Maximum bear a similar isotopic fingerprint, implying that advection of North Atlantic Deep/Intermediate Water into the Circumpolar Deep Water of the Southern Ocean occurred at a similar-or slightly higher-rate during the last glacial period.

引用

页码：689 / 694

页数：6

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