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Oxygen (■) and pH (•) microprofiles for a sediment core from Jadebusen Bay. Note that oxygen was found only in the top 2.0 mm of the sediment. The sulfide content was also examined, but sulfide was not detected. The sediment surface was defined as a depth of 0 mm. Measurements for negative depth values are measurements for the water phase overlaying the sediment; positive depth values indicate the depth in the sediment.
