Surface ocean pH response to variations in pCO2 through two full glacial cycles

被引：161

作者：

Hönisch, B

Hemming, NG

机构：

[1] CUNY Queens Coll, Sch Earth & Environm Sci, Flushing, NY 11367 USA

[2] Columbia Univ, Lamont Doherty Geol Observ, Palisades, NY 10964 USA

来源：

EARTH AND PLANETARY SCIENCE LETTERS | 2005年 / 236卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

boron isotopes; PH; pCO(2); planktonic foraminifera;

D O I：

10.1016/j.epsl.2005.04.027

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 [地球物理学]; 070902 [地球化学];

摘要：

Knowledge of past atmospheric pCO(2) is important for evaluating the role of greenhouse gases in climate forcing. Ice core records show the tight correlation between climate change and pCO(2), but records are limited to the past similar to 900 kyr. We present surface ocean pH and PCO2 data, reconstructed from boron isotopes in planktonic foraminifera over two full glacial cycles (0-140 and 300-420 kyr). The data co-vary strongly with the Vostok PCO2-record and demonstrate that the coupling between surface ocean chemistry and the atmosphere is recorded in marine archives, allowing for quantitative estimation of atmospheric pCO(2) beyond the reach of ice cores. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：305 / 314

页数：10

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