Tyler Kent Tyler Homen Landon Barlow 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
Kelg- Granodiorite
Q- Alluvium
Qb- Beach
Qfp- Flood plain
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
Questions?
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
Line 1 SNOW Line 1 DIRT
SNOW DIRT
Immediate jump to bedrock velocities an attempt to better match picks. SNOW DIRT Immediate jump to bedrock velocities an attempt to better match picks. All lines on Echo Lake Granodiorite have high RMS error values.
Q, Quaternary Alluvium 1 Line, PB 1 2nd Highest velocity after Granodiorite Much better model than granodiorite
Qfp, Flood Plain Deposits
af, Artificial Fill