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- W1968779600 abstract "The sediments of Lake Anna, Virginia, act as a major sink for incoming acid mine drainage (AMD) pollutants (Fe, SO42−, H+) due to bacterial sulfate reduction (SR). Acid-volatile sulfide (AVS), elemental S, and pyrite concentrations in the sediments of the polluted arm of the lake are significantly greater than those in unpolluted sections of the lake. Measurements of SR using 35SSO42− showed that AVS and S0 are the major short-term (48 h) products of SR in these sediments. Inorganic forms of S(AVS, S0, and FeS2) made up from 60 to 100% of the total sediment S concentration. Pyrite concentrations in the sediment were high but decreased exponentially with distance from the AMD source, suggesting that the pyrite was deposited as stream detritus from the abandoned mines. Iron monosulfide and elemental S concentrations were highest at a station 1 km away from the AMD inflow, indicating formation in situ. There was no evidence for the formation of organic S species. The results suggest that in Fe- and S-rich locations such as those contaminated with acid mine drainage, the distribution of end products of SR may vary substantially from those reported for more moderate environments." @default.
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- W1968779600 date "1988-05-01" @default.
- W1968779600 modified "2023-09-27" @default.
- W1968779600 title "Distribution of reduced inorganic sulfur compounds in lake sediments receiving acid mine drainage" @default.
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- W1968779600 doi "https://doi.org/10.1016/0883-2927(88)90110-2" @default.
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