Lithologic Log for Naval Base (17S/2W-20F1-5)
| Depth(ft) from |
Depth(ft) to |
Lithology | Description |
|---|---|---|---|
| 0 | 60 | zS | Silty sand; med-vc sand with silt; lt olive brown (2.5Y 5/3) |
| 60 | 80 | Z | Silt; silt; dk yellowish brown (10YR 4/4) |
| 80 | 90 | sG | Sandy gravel; granules with vc sand; grayish brown (10YR 5/2) |
| 90 | 150 | sC | Sandy clay; clay with med-vc sand; dk grayish brown (10YR 4/2) |
| 150 | 210 | gS | Gravelly sand; coarse-vc sand with granules; brown (10YR 4/3) |
| 210 | 230 | sZ | Sandy silt; silt with med-coarse sand and shell fragments; olive gray (5Y 4/2) |
| 230 | 380 | gS | Gravelly sand; med-vc sand with granules; lt olive brown (2.5Y 5/3) |
| 380 | 460 | C | Clay; clay; dk grayish brown (10YR 4/2) |
| 460 | 690 | zS | Silty sand; med-vc sand with silt; olive brown (2.5Y 4/3) |
| 690 | 740 | sC | Sandy clay; clay with med-coarse sand; lt olive brown (2.5Y 5/3) |
| 740 | 840 | sC | Sandy clay; clay with med-coarse sand; lt olive brown (2.5Y 5/3) |
| 840 | 860 | C | Clay; clay; lt olive gray (5Y 6/2) |
| 860 | 880 | sZ | Sandy silt; silt with med-vc sand; lt olive brown (2.5Y 5/3) |
| 880 | 890 | C | Clay; clay; lt olive gray (5Y 6/2) |
| 890 | 1030 | zS | Silty sand; med-vc sand with silt; grayish brown (2.5Y 5/2) |
| 1030 | 1140 | S | Sand; med-vc sand; olive gray (5Y 4/2) |
| 1140 | 1310 | zS | Silty sand; vf-vc sand with silt; olive gray (5Y 4/2) |
| 1310 | 1370 | zS | Silty sand; med-vc sand with silt; dk greenish gray (10Y 4/1) |
| 1370 | 1440 | sZ | Sandy silt; silt with coarse sand; dk greenish gray (10Y 4/1) |
| 1440 | 1501 | S | Sand; vf-vc sand; olive gray (5Y 5/2) |
Questions about San Diego Hydrogeology? Please contact Wes Danskin (email: wdanskin@usgs.gov or send a letter). 619.225.6132
