GLOBAL CARBON-DIOXIDE EMISSION TO THE ATMOSPHERE BY VOLCANOS

被引：119

作者：

WILLIAMS, SN

SCHAEFER, SJ

CALVACHE, ML

LOPEZ, D

机构：

[1] OBSERV VULCANOL COLOMBIA,PASTO,COLOMBIA

[2] UNIV BRITISH COLUMBIA,DEPT GEOL SCI,VANCOUVER V6T 2B4,BC,CANADA

来源：

GEOCHIMICA ET COSMOCHIMICA ACTA | 1992年 / 56卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0016-7037(92)90243-C

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：

Global emission of carbon dioxide by subaerial volcanoes is calculated, using CO2/SO2 from volcanic gas analyses and SO2 flux, to be 34 +/- 24 x 10(12) g CO2/yr from passive degassing and 31 +/- 22 x 10(12) g CO2/yr from eruptions. Volcanic CO2 presently represents only 0.22% of anthropogenic emissions but may have contributed to significant "greenhouse" effects at times in Earth history. Models of climate response to CO2 increaes may be tested against geological data.

引用

页码：1765 / 1770

页数：6

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