2011-3-2-Faults and stress

2011-3-2-Faults and stress - 1. older than C 2. older than...

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Unformatted text preview: 1. older than C 2. older than G 3. older than B 4. older than H Review of cross-cutting relationships Geologic Timescale Problem: How is fault strike related to stress direction? Guidelines: Shortening occurs parallel to most compressive stress Stretching occurs parallel to the least compressive stress N Explanation for Next 3 slides In the following slides, we • chose which diagram indicated the proper orientation of the horizontal stresses relative to fault strike AND • chose the proper relative magnitude of the vertical stress amongst the three principal stresses. A Normal Faulting C SHmax SHmax Shmin a) Svert = S1 b) Svert = S2 c) Svert = S3 Shmin these are all map view Shmin D Shmin B SHmax SHmax A Thrust Faulting C SHmax SHmax Shmin a) Svert = S1 b) Svert = S2 c) Svert = S3 Shmin these are all map view Shmin D Shmin B SHmax SHmax A Strike-slip Faulting C SHmax SHmax Shmin a) Svert = S1 b) Svert = S2 c) Svert = S3 Shmin these are all map view Shmin D Shmin B SHmax SHmax ...
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This note was uploaded on 04/18/2011 for the course PGE 301 taught by Professor Olson during the Spring '11 term at University of Texas at Austin.

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2011-3-2-Faults and stress - 1. older than C 2. older than...

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