Diagenetic formation of greigite and pyrrhotite in gas hydrate marine sedimentary systems
Mineral magnetic results and electron microscope observations from gas hydrate-bearing marine sediments cored at southern Hydrate Ridge during Ocean Drilling Program Leg 204 (Sites 1244 to 1252, Cascadia Margin, offshore Oregon) demonstrate that authigenic greigite and pyrrhotite formed as a byproduct of microbially-mediated diagenetic reactions in the sulphate, the anaerobic oxidation of methane (AOM), and the methanic/gas hydrate zones. Geochemical conditions favourable for formation and...[Show more]
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|Source:||Earth and Planetary Science Letters|
|01_Larrasoana_Diagenetic_formation_of_2007.pdf||4.29 MB||Adobe PDF||Request a copy|
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