Role of Microbes in the Smectite-to-Illite Reaction

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Temperature, pressure, and time have been thought to control the smectiteto-illite (S-I) reaction, an important diagenetic process used for petroleum exploration. We demonstrated that microorganisms can promote the S-I reaction by dissolving smectite through reduction of structural FE(III) at room temperature and 1 atmosphere within 14 days. This reaction typically requires conditions of 300?? to 350??C, 100 megapascals, and 4 to 5 months in the absence of microbial activity. These results challenge the conventional concept of the S-I reaction and of reaction kinetic models.
Publication type Article
Publication Subtype Journal Article
Title Role of Microbes in the Smectite-to-Illite Reaction
Series title Science
DOI 10.1126/science.1093245
Volume 303
Issue 5659
Year Published 2004
Language English
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Science
First page 830
Last page 832
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