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ReMi

ReMi. Tyler Kent Tyler Homen Landon Barlow. Lithologic Units. Saucedo, G.J., 2005. Qb, Beach deposits. 4 lines with consistent Vs30 values Good energy dispersion in Data collected. Vs30 vs. Lithology. NEHRP Site Class B. NEHRP Site Class C. NEHRP Site Class D. NEHRP Site Class E.

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ReMi

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  1. ReMi Tyler Kent Tyler Homen Landon Barlow

  2. Lithologic Units Saucedo, G.J., 2005

  3. Qb, Beach deposits • 4 lines with consistent Vs30 values • Good energy dispersion in Data collected

  4. Vs30 vs. Lithology NEHRP Site Class B NEHRP Site Class C NEHRP Site Class D NEHRP Site Class E

  5. Kelg- Granodiorite

  6. Q- Alluvium

  7. Qb- Beach

  8. Qfp- Flood plain

  9. Results • Changed the unit at Lake Tahoe Boulevard and Rainier Rd to Kelp after finding a Vs30 of 1150 m/s • Lowest Vs30 on Pleistocene till deposits. • Highest Vs30 on granodiorite • Most on site class C/D boundary • Artificial fill has Vs30 values comparable or better than Qta, Qfp, Qb and Q

  10. Questions?

  11. References • Saucedo, G.J., 2005, Geologic map of the Lake Tahoe basin, California and Nevada, 1:100,000 scale: California Geological Survey, Regional Geologic Map No. 4, scale 1:100000

  12. Line 1 SNOW Line 1 DIRT

  13. SNOW DIRT

  14. SNOW DIRT Immediate jump to bedrock velocities an attempt to better match picks. All lines on Echo Lake Granodiorite have high RMS error values.

  15. Q, Quaternary Alluvium • 1 Line, PB 1 • 2nd Highest velocity after Granodiorite • Much better model than granodiorite

  16. Qfp, Flood Plain Deposits

  17. af, Artificial Fill

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