Estimate of Microbial Metabolism Rates in Deep Aquifers

6 Estimate of Microbial Metabolism Rates in Deep Aquifers [Pg.195]

Chapelle and Lovley (1990) studied anaerobic aquifers of the Atlantic Coastal Plain in South Carolina. The aquifers include Black Creek, Middendorf, and Cape Fear Formations. Groundwater in these aquifers is depleted in dissolved oxygen. Microbial metabolism consumes the organic matter in the aquifer, produces CO2, and reduces ferric iron or sulfate, which are terminal electron acceptors. [Pg.195]

Observed geochemical changes along flow paths are [Pg.196]

From these trends, Chapelle and Lovley (1990) inferred the following mass transfer reactions. [Pg.196]

Microbially produced CO2 results in dissolution of carbonate shell, [Pg.196]

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