CO2 FLUX CONSUMED BY CHEMICAL-WEATHERING OF CONTINENTS - INFLUENCES OF DRAINAGE AND LITHOLOGY

Authors
SUCHET PA PROBST JL
Citation
Pa. Suchet et Jl. Probst, CO2 FLUX CONSUMED BY CHEMICAL-WEATHERING OF CONTINENTS - INFLUENCES OF DRAINAGE AND LITHOLOGY, Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre, 317(5), 1993, pp. 615-622
Citations number
17
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Comptes rendus de l'Academie des sciences. Serie 2, Mecanique, physique, chimie, sciences de l'univers, sciences de la terre → ACNP
ISSN journal
07644450
Volume
317
Issue
5
Year of publication
1993
Pages
615 - 622
Database
ISI
SICI code
0764-4450(1993)317:5<615:CFCBCO>2.0.ZU;2-G
Abstract
The flux of atmospheric/soil CO2 consumed by chemical weathering of th e continents (F(CO2)) can be estimated from bicarbonate concentrations in surface water. Using data from the bibliography for 232 small mono lithologic watersheds, relationships between F(CO2) and the runoff (Q) have been determined for the major rock types outcropping on the cont inents. The models fitted to these relationships are then applied to t he Garonne and Congo river basins, in order to calculate the mean CO2 flux consumed in these basins. The results obtained are close to previ ous estimates based on field measurements.