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.

• Which topographic outcome on a semi-arid plain results when strong winds preferentially erode fine sediments?
• Which geologic outcome primarily occurs along a transform plate boundary?
• Which effect arises from the deflection of prevailing winds by the Coriolis force?
• Which slope deformation is most directly attributable to thawing permafrost layer above an impermeable frozen subsurface?
• Which limit constrains the formation of extensive alluvial terraces in a rapidly uplifting mountain range?
• Which geophysical effect occurs when a subducting oceanic plate has a rough surface with many seamounts?