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Unformatted text preview: Creates faults. Fault – break in rock along which movement occurs. Dip-slip fault – all motion is parallel to dip of fault plane. Normal fault – hanging wall goes down. Reverse fault – hanging wall goes up relative to foot wall and fault dip >45° Thrust fault – hanging wall goes up relative to foot wall and fault dip <45° Horst Graben Strike-slip fault – all motion is parallel to strike of fault Fault is usually vertical, so cannot determine foot wall/hanging wall. Named by looking across fault to see what direction other side is moving Left-lateral strike-slip fault – the other side of the fault moves left Right-lateral strike-slip fault – the other side of the fault moves right Oblique-slip fault – motion is diagonal Sometimes rocks break but no movement occurs. Creates fractures. If a geometric pattern is created, fracture system is called joint system. Foot wall Hanging wall...
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- Fall '09
- Geology, Strike and dip, strike-slip fault, Angle of inclination