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← GeographyWhich mechanism creates a stratified water column within a fjord following a glacial meltwater pulse?
A)Thermohaline contrast induces density layering✓
B)Tidal resonance amplifies internal wave mixing
C)Coriolis effect enhances upwelling along shores
D)Geothermal vents drive hydrothermal convection
💡 Explanation
When a glacial meltwater pulse enters a fjord, a thermohaline contrast induces density layering because fresh, cold meltwater is less dense than saline ocean water, impeding vertical mixing. Therefore, density layering results,rather than wave mixing, upwelling, or hydrothermal effects, which demand alternative forcing factors and conditions.
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