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Role of Microbes in the Smectite-to-Illite Reaction

Science

By:
, , , , and
DOI: 10.1126/science.1093245

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Abstract

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.

Additional Publication Details

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
Number of Pages:
3