| Description: |
A conceptual model is developed for this study to explain the observed temporal and spatial variation of Br/Cl and I/Cl in the vent fluids at Milos. This model involves geochemical processes of sediment diagenesis, phase separation, and halite formation/dissolution at various stages during vent fluid circulation. The high I/Cl data suggest a scenario in which fluids were influenced by sediment diagenesis prior to phase separation. The latter process boils off vapor with high Br/Cl continuously at deep seated reservoir to create low Br/Cl brines, which was then mixed with seawater to form high Br/Cl variability in vent fluids. [Source: Marine Chemistry]
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