noun(usually slickensides) Geology
A polished and striated rock surface that results from friction along a fault or bedding plane.
- Brittle deformation is evident from a number of fault planes showing quartz slickensides consistently dipping at c.40 deg to the southeast.
- Main normal-throw components are documented both by steps on the fault slickensides and by downthrown offsets of basaltic layers.
- There is limited evidence from slickensides for dip-slip movement along this fault.
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