Effect of Bacillus subtilis on granite weathering : a laboratory experiment

Auteurs :
SONG, W.
OGAWA, N.
OGUCHI, C.T.
HATTA, T.
MATSUKURA, Y.

Description :
The AA. performed a comparative experiment to investigate : 1) how the ubiquitous soil bacterium Bacillus subtilis weathers granite; and 2) which granite-forming minerals weather more rapidly via biological processes. Granite surfaces were observed by SEM before and after the experiment. B. subtilis had a strong influence on granite weathering by forming pits. Plagioclase was more vulnerable to bacterial weathering than biotite among the granite composing minerals.


Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2007, vol. 70, n°. 3, p. 275-281, nombre de pages : 7, Collation : Illustration, Références bibliographiques : 19 ref.

Date :
2007

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena