Inorganic and Organic Sulfur in Estuarine Sediments

Cycling of Inorganic and Organic Sulfur in Estuarine Sediments 

Dissolved sulfides (DS) (= S2 + HS + H2S) formed in porewaters during SR can diffuse into overlying bottom waters and contribute to 02 depletion in estuaries (Tuttle et al., 1987). Sulfides can also be removed from porewaters via reactions with Fe oxy-hydroxides to form pyrite (FeS2) (Berner, 1970, 1984). In addition to vertical molecular diffusion as a controlling factor in the DS transport, gas bubble ebullition, derived from CH4 production beneath the SR zone can be important in stripping DS from porewaters 

Location Description Water depth (m) Temperature (°C) Measured Corrected3 Source 

Mid-Chesapeake Bay Silt-clay bioturbated 10-40 25 10-90 10-90 Roden and Tuttle (1993a,b) 

Long Island Sachem Silt-clay lagoon 2 23 10 12 Berner and Westrich (1985) 

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