Alteration of a Submarine Basaltic Glass under Environmental Conditions Conducive for Microorganisms: Growth Patterns of the Microbial Community and Mechanism of Palagonite Formation

被引：7

作者：

Dultz, Stefan ^{[1
]}

Boy, Jens ^{[2
]}

Dupont, Christoph ^{[1
]}

Halisch, Matthias ^{[3
]}

Behrens, Harald ^{[1
]}

Welsch, Anna-Maria ^{[1
]}

Erdmann, Martin ^{[1
]}

Cramm, Sandra ^{[4
]}

Helsch, Gundula ^{[4
]}

Deubener, Joachim ^{[4
]}

机构：

[1] Leibniz Univ Hannover, Inst Mineral, D-30167 Hannover, Germany

[2] Leibniz Univ Hannover, Inst Soil Sci, D-30167 Hannover, Germany

[3] Leibniz Inst Appl Geophys, Hannover, Germany

[4] Tech Univ Clausthal, Inst Nonmetall Mat Glass & Glass Technol, Clausthal Zellerfeld, Germany

来源：

GEOMICROBIOLOGY JOURNAL | 2014年 / 31卷 / 09期

关键词：

alteration mechanism; basaltic glass; biogenic weathering; palagonite formation; SEA-FLOOR; BACTERIA; FUNGI; IRON; BIOSIGNATURES; DIVERSITY; CHEMISTRY; MANGANESE; CARBON; ROCKS;

D O I：

10.1080/01490451.2014.897774

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In basaltic glass from the southern Mid-Atlantic-Ridge conducive environmental conditions for biogenic weathering resulted in excellent preserved microbial morphologies on glass surfaces. Thedistinct glass interface and open spaces between palagonite sheet and glass indicate a dissolution-reprecipitation mechanism of glass alteration potentially supported by microorganisms. On internal fracture surfaces, branching channels with widths at 20-30m containing longish structures with targeted dissolution of the glass by growing tips were observed. Alteration resulted in enrichment of Fe, Ti, P, and Kin palagonite in amorphous mineral forms.

引用

页码：813 / 834

页数：22