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The mineral barite (BaSO4) can precipitate in a variety of oceanic settings: in the water column, on the sea floor and within marine sediments. The geological setting where barite forms ultimately determines the geochemistry of the precipitated mineral and its usefulness for various applications. Specifically, the isotopic and elemental composition of major and trace elements in barite carry information...
Marine barite (BaSO 4 ) is produced in the water column in association with decaying organic matter; its distribution in the water column and in core-top sediments closely corresponds with the organic carbon flux from the surface ocean to the deep ocean (export production). Barite preservation in non-sulfate-reducing sediments is high, compared to other proxies used to reconstruct both export...
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