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Science 25 July 1969:
Vol. 165. no. 3891, pp. 391 - 392
DOI: 10.1126/science.165.3891.391
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Articles

Chemical Weathering in Central Iceland: An Analog of Pre-Silurian Weathering

J. L. Cawley 1, R. C. Burruss 1, and H. D. Holland 1

1 Department of Geological and Geophysical Sciences, Princeton University, Princeton, New Jersey

The rate of chemical weathering in central Iceland is two to three times more rapid in areas with plant cover than in barren areas. This relatively small difference in chemical weathering rates suggests that atmospheric CO2, pressures no greater than five times the present value were needed to sustain present-day rates of chemical weathering before the development of higher land plants in the Silurian.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Atmospheric Carbon Dioxide Levels Over Phanerozoic Time.
R. A. Berner and R. A. Berner (1990)
Science 249, 1382-1386
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