Lithologic Log for Balboa Park (17S/3W-1K1-5)
| Depth(ft) from |
Depth(ft) to |
Lithology | Description |
|---|---|---|---|
| 0 | 10 | sG | Sandy gravel; granules-med pebbles w/ med-vc sand; yellowish brown (10YR 5/4) |
| 10 | 100 | sG | Sandy gravel; granules-med pebbles w/ fine-vc sand; olive (5Y 5/3) |
| 100 | 160 | sG | Sandy gravel; granules-sm pebbles w/ fine-vc sand and shell frags; olive (5Y 5/3) |
| 160 | 270 | sZ | Sandy silt; silt w/ vf-fine sand and shell frags; v dk gray (5Y 3/1) |
| 270 | 460 | M | Clayey silt; silt w/ clay and some shell frags; v dk gray (5Y 3/1) |
| 460 | 500 | zS | Silty sand; vf-c sand w/ silt and some shell frags; v dk gray (5Y 3/1) |
| 500 | 560 | M | Silty clay; clay w/ silt; v dk gray (5Y 3/1) |
| 560 | 620 | zS | Silty sand; vf-c sand w/ silt and some shell frags; v dk gray (5Y 3/1) |
| 620 | 720 | C | Clay; clay; grayish brown (2.5Y 5/2) |
| 720 | 830 | sM | Clayey sandy silt; silt w/ vf sand and clay; lt olive brown (2.5Y 5/3) |
| 830 | 940 | sZ | Sandy silt; silt w/ vf sand; grayish brown (2.5Y 5/2) |
| 940 | 1260 | G | Gravel; granules-med pebbles; v dk grayish brown (2.5Y 3/2) |
| 1260 | 1501 | sM | Clayey silt; silt w/ clay and some vf-medsand; dk gray (2.5Y 4/1) |
Questions about San Diego Hydrogeology? Please contact Wes Danskin (email: wdanskin@usgs.gov or send a letter). 619.225.6132
