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← GeographyWhich effect on stream drainage patterns is caused by strike-slip offset along a transform fault?
A)Rectangular drainage with deranged patterns
B)Radial drainage from a central peak
C)Offset streams with beheaded drainages✓
D)Parallel drainage in a rift valley
💡 Explanation
When strike-slip movement occurs, stream channels that cross the fault are displaced laterally because active fault motion causes shear deformation creating offset streams. Therefore you observe streams with beheaded drainages, rather than the other patterns, which require different tectonic mechanisms.
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