Publication year: 2010
Source: Chemical Geology, In Press, Accepted Manuscript, Available online 26 May 2010
Kelsey L. I. , Norlund , Christian, Baron , Lesley A. , Warren
The formation of jarosite in acid mine drainage (AMD) accompanies microbial oxidation of reduced sulphidic minerals such as pyrite (FeS2) and pyrrhotite (Fe1-xS) found in mining waste materials. The discovery of jarosite at Meridiani Planum, Mars has been used to interpret past hydrologic conditions as episodically wet, acidic and evaporative based on evidence from jarosite formed abiotically or through microbial iron oxidation. To date, no study has specifically assessed jarosite formation via microbial sulphide oxidation, the most likely pathway in AMD, or the mineral stability of any jarosite formed via this pathway. Here, using both aerobic and anaerobic conditions to. . .
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