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← GeographyWhich process initiates hydrothermal vent formation along oceanic transform faults?
A)Magma intrusion fracturing adjacent rock✓
B)Erosion deepening fault valleys
C)Chemical weathering altering seafloor
D)Sediment deposition burying fissures
💡 Explanation
When magma intrudes along transform faults, thermal fracturing occurs because the hot magma weakens adjacent lithosphere, creating pathways for hydrothermal fluids. Therefore vent formation initiates, rather than valley deepening, chemical weathering, or sediment deposition each needing alternative mechanisms.
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