Which process contributes to the formation of deep anoxic basins within fjord environments with restricted sills?

💡 Explanation

When a fjord's sill restricts water exchange, thermohaline circulation develops because density gradients between surface and deep waters prevent vertical mixing, leading to oxygen depletion in the basin. Therefore thermohaline stratification contributes to anoxic conditions rather than sea-level rise, meltwater incursions, or subsidence, which impact fjord morphology and sedimentation.

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