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← GeographyWhich mechanism drives the formation of elongated basins along oceanic transform faults?
A)Strike-slip induced crustal thinning✓
B)Thermal metamorphism driven volume change
C)Sediment deposition from turbidity currents
D)Mantle plume upwelling at fault bends
💡 Explanation
When transform faults slip, strike-slip movement causes localized crustal thinning due to extensional forces along bends on the fault line, leading to basin formation because the lithosphere stretches and subsides. Therefore strike-slip induced crustal thinning is responsible, rather than the alternatives involving thermal, sedimentary accretion, or mantle upwelling which require different heat source or fault dynamics.
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