Experimental investigation of the reduction reactivity of aquifer sediments

摘要

We incubated aquifer sediments from a single aquifer under atmospheric conditions for 53 days to determine the reactivity of the reductants present. The stoichiometric slopes between O_2 consumption and CO_2 production were used to evaluate the relative importance of the ongoing redox processes. Respiration of organic matter (OM) and pyrite oxidation were the major processes occurring, although there is also evidence for siderite oxidation.