The Hydrospheric Cycle of Sulfur

The ocean plays a central role in the hydrospheric cycling of sulfur, since the major reservoirs of sulfur on the Earth s surface are related to various oceanic depositional processes. In this section, we consider the reservoirs and the fluxes, focusing on the cycling of sulfur through this oceanic node. 

Ocean sediments Gypsum (CaS04), pyrite (FeS2) 3x 10  

Rest of lithosphere Pyrite (FeS2), gypsum (CaS04) 2.4 X 10  

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