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ReMi

ReMi. Team 5 Scott Mathot Lyndsay Hazelwood Ellen Hall-Patton. Arrays. 20 lines total 1-6 on West side of highway, following most visible fault trace 7-12 on East side of highway, where scarp was less apparent 13-20 perpendicular to the proposed fault. Lines 1-6. Lines 1-6. Line 7-12.

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ReMi

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  1. ReMi Team 5 Scott Mathot Lyndsay Hazelwood Ellen Hall-Patton

  2. Arrays • 20 lines total • 1-6 on West side of highway, following most visible fault trace • 7-12 on East side of highway, where scarp was less apparent • 13-20 perpendicular to the proposed fault

  3. Lines 1-6

  4. Lines 1-6

  5. Line 7-12

  6. Line 13-20

  7. Lines 13-20

  8. Results • Shear velocities at 30m depth change across the fault • Arrays on the Southwest side appear to show lower velocities than those on the NE side • Especially true when fault is visible on the surface • Differences in velocities become smaller the farther Southeast the arrays are set • Correlates with where fault becomes less apparent • Low velocity zone is apparent between the vegetation lineament and projected fault trace

  9. Limitations • Depth calculations allow for increased error as the angle of the dip of the layers departs from zero • Impossible to detect some geologic boundaries because of no field-measureable seismic shear-velocity contrast • Geophone placement and leveling • Inconsistency in picking pf plots

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