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← GeographyWhich crustal deformation results when a river channel crosses an active strike-slip transform fault zone?
A)Progressive stream offset along the fault trace✓
B)Increased floodplain deposition upstream
C)Enhanced channel incision downstream
D)Formation of oxbow lakes perpendicular
💡 Explanation
When a river channel crosses a strike-slip transform fault, repeated lateral displacement from seismic activity progressively offsets the channel because fault movement causes blocks to slide horizontally. Therefore stream offset along the fault trace results, rather than increased deposition, erosion, or oxbow formation, which require different geological processes.
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