Lithologic Log for Mile of Cars (17S/2W-33D1-5)
Shaker
[Altitude of land surface, approximately 16 feet NAVD29. Depth is in feet below land surface. Drilled by U.S. Geological Survey using hydraulic rotary, June 26, 2005. Total depth drilled 1502 feet. Screened intervals: 1440-1480, 1100-1120, 700-720, 260-280, and 35-75 feet.]
| Depth(ft) | Description |
|---|---|
| 10 | Sand (S); coarse sand; charred wood fragments; very well sorted; subrounded |
| 20 | Sand (S); coarse sand; high mica; very well sorted; subrounded |
| 30 | Gravelly sand (gS); coarse to very coarse sand with granules; occasional shell fragments; well sorted; subrounded |
| 40 | Gravelly sand (gS); coarse to very coarse sand with granules; occasional shell fragments; single charred wood fragment <20 mm diameter; well sorted; subrounded |
| 50 | Sand (S); medium to very coarse sand; well sorted; subrounded |
| 60 | Sand (S); medium to very coarse sand; well sorted; subrounded |
| 70 | Gravelly sand (gS); medium to very coarse sand with granules; occasional pieces of organic matter; moderately sorted; subrounded to rounded |
| 80 | Sand (S); coarse to very coarse sand; well sorted; subrounded |
| 90 | Slightly sandy silty clay (M); clay and silt with some very fine to coarse sand; well sorted; subrounded |
| 100 | Silty sand (zS); very fine to coarse sand with silt; poorly sorted; subrounded |
| 110 | Clayey sandy silt (sM); silt with very fine sand and some clay and fine to coarse sand; moderately sorted; subrounded |
| 120 | Clayey sandy silt (sM); silt with very fine sand and some clay; well sorted; subrounded |
| 130 | Clayey sandy silt (sM); silt with very fine sand, fine to coarse sand and some clay; poorly sorted; subrounded |
| 140 | Silty sand (zS); very fine sand and silt with fine to coarse sand; occasional organic material; poorly sorted; subrounded |
| 150 | Silty sand (zS); coarse to very coarse sand with very fine sand to silt; poorly sorted; subrounded |
| 160 | Sand (S); coarse to very coarse sand; well sorted; subrounded |
| 170 | Gravelly sand (gS); coarse to very coarse sand with granules; well sorted; subrounded to rounded |
| 180 | Gravelly silty sand (gmS); coarse to very coarse sand with very fine sand and silt, granules and pebbles <12 mm diameter; very poorly sorted; subrounded |
| 190 | Gravelly silty sand (gmS); very fine sand and silt with medium to coarse sand and some pebbles <8 mm diameter; very poorly sorted; subrounded |
| 200 | Silty sand (zS); coarse to medium sand with some very fine sand to silt; moderately sorted; subrounded |
| 210 | Gravelly sand (gS); coarse to very coarse sand with some granules; well sorted; subrounded to rounded |
| 220 | Gravelly sand (gS); coarse to very coarse sand with some granules; well sorted; subrounded to rounded |
| 230 | Silty sand (zS); coarse to medium sand with very fine sand and silt; moderately sorted; subrounded |
| 240 | Sand (S); coarse to medium sand; very well sorted; subrounded |
| 250 | Sandy silt (sZ); silt and very fine sand with some fine to medium sand; well sorted; subrounded |
| 260 | Sand (S); coarse to very coarse sand; very well sorted; subrounded to rounded |
| 270 | Sand (S); coarse to very coarse sand; very well sorted; subrounded to rounded |
| 280 | Silty gravelly sand (gmS); coarse to very coarse sand with granules, very fine sand and silt and some pebbles <8 mm diameter; very poorly sorted; subrounded to rounded |
| 290 | Gravelly silty sand (gmS); coarse to very coarse sand with very fine sand and silt and some granules and pebbles <8 mm diameter; very poorly sorted; subrounded to rounded |
| 300 | Silty sand (zS); very fine sand and silt with some medium to very coarse sand; poorly sorted; subrounded |
| 310 | Sand (S); coarse to very coarse sand; well sorted; subrounded |
| 320 | Gravelly sand (gS); coarse to very coarse sand with some granules; well sorted; subrounded |
| 330 | Silty gravelly sand (gmS); coarse to very coarse sand with granules and pebbles <10 mm diameter and some very fine sand and silt; very poorly sorted; subrounded |
| 340 | Slightly gravelly sandy silt ((g)sM); silt with very fine to coarse sand and some pebbles <10 mm in diameter; very poorly sorted; subrounded |
| 350 | Slightly gravelly silty sand ((g)mS); very fine to coarse sand with silt and some pebbles <8 mm diameter; very poorly sorted; subrounded |
| 360 | Gravelly sand (gS); coarse to very coarse sand with granules; well sorted; subrounded to rounded |
| 370 | Gravelly sand (gS); coarse to very coarse sand with granules; well sorted; subrounded to rounded |
| 380 | Gravelly sand (gS); coarse to very coarse sand with granules and pebbles <8 mm diameter; moderately sorted; subrounded to rounded |
| 390 | Gravelly sand (gS); coarse to very coarse sand with granules; well sorted; subrounded to rounded |
| 400 | Sand (S); coarse to very coarse sand; very well sorted; subrounded to rounded |
| 410 | Sand (S); coarse to very coarse sand; very well sorted; subrounded to rounded |
| 420 | Gravelly sand (gS); coarse to very coarse sand with granules; well sorted; subrounded to rounded |
| 430 | Gravelly sand (gS); coarse to very coarse sand with granules; well sorted; subrounded to rounded |
| 440 | Gravelly sand (gS); coarse to very coarse sand with granules; well sorted; subrounded to rounded |
| 450 | Gravelly sand (gS); coarse to very coarse sand with granules; well sorted; subrounded to rounded |
| 460 | Gravelly sand (gS); coarse to very coarse sand with granules and some pebbles <6 mm diameter; moderately sorted; subrounded to rounded |
| 470 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 480 | Silty sand (zS); very fine sand and silt with fine to coarse sand; poorly sorted; subrounded |
| 490 | Silty sand (zS); very fine to coarse sand with silt; poorly sorted; subrounded |
| 500 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 510 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 520 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 530 | Slightly silty sand (zS); coarse to very coarse sand with some very fine sand and silt; poorly sorted; subrounded |
| 540 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 550 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 560 | Slightly gravelly sand ((g)S); coarse to very coarse sand with some granules; well sorted; subrounded |
| 570 | Silty sand (zS); coarse to very coarse sand with very fine sand and silt; poorly sorted; subrounded |
| 580 | Silty sand (zS); coarse to very coarse sand with very fine sand and silt; poorly sorted; subrounded |
| 590 | Silty sand (zS); very fine sand and silt with coarse to very coarse sand; poorly sorted; subrounded |
| 600 | Silty sand (zS); very fine sand and silt with coarse to very coarse sand; poorly sorted; subrounded |
| 610 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 620 | Slightly gravelly sand ((g)S); coarse to very coarse sand with occasional granules; shell fragments; very well sorted; subrounded |
| 630 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 640 | Gravelly sand (gS); coarse to very coarse sand with granules; well sorted; subrounded |
| 650 | Gravelly sand (gS); coarse to very coarse sand with some granules; well sorted; subrounded |
| 660 | Gravelly sand (gS); coarse to very coarse sand with some granules; well sorted; subrounded |
| 670 | Gravelly sand (gS); coarse to very coarse sand with some granules; well sorted; subrounded |
| 680 | Gravelly sand (gS); coarse to very coarse sand with some granules; well sorted; subrounded |
| 690 | Gravelly sand (gS); coarse to very coarse sand with some granules; well sorted; subrounded |
| 700 | Gravelly sand (gS); coarse to very coarse sand with some granules; well sorted; subrounded |
| 710 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 720 | Silty sand (zS); coarse to very coarse sand with very fine sand and silt; poorly sorted; subrounded |
| 730 | Gravelly sand (gS); coarse to very coarse sand with granules and occasional pebbles <6 mm diameter; well sorted; subrounded |
| 740 | Gravelly sand (gS); coarse to very coarse sand with granules and occasional pebbles <6 mm diameter; well sorted; subrounded to rounded |
| 750 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 760 | Gravelly sand (gS); coarse to very coarse sand with some granules and occasional pebbles <10 mm diameter; well sorted; subrounded |
| 770 | Gravelly silty sand (gmS); coarse to very coarse sand with very fine sand and silt, some granules and occasional pebbles <8 mm diameter; poorly sorted; subrounded |
| 780 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 790 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 800 | Gravelly sand (gS); coarse to very coarse sand with some granules and occasional pebbles <16 mm diameter; very poorly sorted; subrounded |
| 810 | Gravelly silty sand (gmS); coarse to very coarse sand with some very fine sand and silt and granules to pebbles <8 mm diameter; very poorly sorted; subrounded |
| 820 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 830 | Gravelly sand (gS); coarse to very coarse sand with some granules; well sorted; subrounded |
| 840 | Gravelly sand (gS); coarse to very coarse sand with some granules; well sorted; subrounded |
| 850 | Sand (S); coarse to very coarse sand; rare shell fragments; very well sorted; subrounded |
| 860 | Sand (S); coarse to very coarse sand; occasional shell fragments; very well sorted; subrounded |
| 870 | Sand (S); coarse to very coarse sand; occasional shell fragments; very well sorted; subrounded |
| 880 | Missing sample |
| 890 | Silty sand (zS); coarse to very coarse sand with some silt and pieces of well compacted dry silt (siltstone?) <10 mm diameter; moderately sorted; subrounded |
| 900 | Sand (S); coarse sand; shell fragments; very well sorted; subrounded |
| 910 | Core subsample — Silty sand (zS); very fine sand and silt; very well sorted; subrounded |
| 920 | Core subsample — Silty sand (zS); very fine sand with silt; shell fragments; very well sorted; subrounded |
| 930 | Core subsample — Silty sand (zS); very fine sand with silt and some medium to coarse sand; shell fragments; well sorted; subrounded |
| 940 | Core subsample — Silty sand (zS); very fine sand and silt; some shell fragments; very well sorted; subrounded |
| 950 | Silty sand (zS); very fine sand and silt with some medium to coarse sand; shell fragments and some organic matter; poorly sorted; subrounded |
| 960 | Silty sand (zS); very fine sand and silt with some medium to coarse sand; shell fragments; poorly sorted; subrounded |
| 970 | Sandy silt (sZ); silt with very fine sand and some fine to coarse sand; shell fragments; well sorted; subrounded |
| 980 | Sandy silt (sZ); silt with very fine sand and some fine to coarse sand; sample contains high percentage of drill mud polymers; well sorted; subrounded |
| 990 | Silty sand (zS); very fine sand and silt with coarse to very coarse sand; sample contains high percentage of drill mud polymers; poorly sorted; subrounded |
| 1,000 | Silty sand (zS); very fine sand and silt; sample contains high percentage of drill mud polymers; occasional shell fragments; very well sorted; subrounded |
| 1,010 | Silty sand (zS); very fine sand and silt with some coarse to very coarse; sample contains some drill mud polymers; moderately sorted; subrounded |
| 1,020 | Silty sand (zS); coarse to very coarse sand with very fine sand and silt; some shell fragments; poorly sorted; subrounded |
| 1,030 | Silty sand (zS); coarse to very coarse sand with very fine sand to silt; some shell fragments; poorly sorted; subrounded |
| 1,040 | Slightly silty sand (zS); coarse to very coarse sand with occasional very fine sand and silt; well sorted; subrounded |
| 1,060 | Silty sand (zS); very fine sand and silt with some fine sand; very well sorted; subrounded |
| 1,070 | Silty sand (zS); medium to coarse sand with very fine sand and silt; moderately sorted; subrounded |
| 1,080 | Slightly silty sand (zS); coarse to very coarse sand with occasional very fine sand and silt; well sorted; subrounded |
| 1,090 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 1,100 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 1,110 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 1,120 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 1,130 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 1,140 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 1,150 | Sand (S); coarse sand; very well sorted; subrounded |
| 1,160 | Sand (S); coarse sand; very well sorted; subrounded |
| 1,170 | Sand (S); coarse to very coarse sand; very well sorted; subrounded |
| 1,180 | Sand (S); coarse sand; very well sorted; subrounded |
| 1,190 | Sand (S); coarse sand; very well sorted; subrounded |
| 1,200 | Sand (S); coarse to very coarse sand; some shell fragments; very well sorted; subrounded |
| 1,210 | Sand (S); coarse to very coarse sand; some shell fragments; very well sorted; subrounded |
| 1,220 | Silty sand (zS); coarse to very coarse sand with very fine sand and silt; poorly sorted; subrounded |
| 1,230 | Silty sand (zS); very coarse to coarse sand with very fine sand and silt; poorly sorted; subrounded |
| 1,240 | Silty sand (zS); very fine sand and silt with some coarse to very coarse sand; poorly sorted; subrounded |
| 1,250 | Silty sand (zS); very fine sand and silt with some coarse to very coarse sand; poorly sorted; subrounded |
| 1,260 | Silty sand (zS); very fine sand and silt with some medium to coarse sand; shell fragments; moderately sorted; subrounded |
| 1,270 | Silty sand (zS); very fine sand and silt with some medium to coarse sand; moderately sorted; subrounded |
| 1,280 | Silty sand (zS); very fine sand and silt with some medium to coarse sand; moderately sorted; subrounded |
| 1,290 | Silty sand (zS); coarse sand with some very fine sand and silt; moderately sorted; subrounded |
| 1,300 | Slightly silty sand (zS); coarse sand with occasional very fine sand and silt; well sorted; subrounded |
| 1,310 | Silty sand (zS); very fine sand and silt with some medium to coarse sand; moderately sorted; subrounded |
| 1,320 | Silty sand (zS); medium to coarse sand with very fine sand and silt; moderately sorted; subrounded |
| 1,330 | Silty sand (zS); very fine sand and silt with some medium to coarse sand; moderately sorted; subrounded |
| 1,340 | Silty sand (zS); very fine sand and silt with occasional medium to coarse sand; very well sorted; subrounded |
| 1,350 | Silty sand (zS); very fine sand and silt with occasional medium to coarse sand; very well sorted; subrounded |
| 1,360 | Silty sand (zS); very fine sand and silt with occasional medium to coarse sand and pebbles of siltstone (?); very well sorted; subrounded |
| 1,370 | Silty sand (zS); very fine sand and silt with some medium to coarse sand and pebbles of siltstone (?); moderately sorted; subrounded |
| 1,380 | Silty sand (zS); very fine sand and silt with some fine to medium sand and occasional pebbles of siltstone (?); moderately sorted; subrounded |
| 1,390 | Silty sand (zS); very fine sand and silt with some fine to medium sand and pebbles of siltstone (?); some shell fragments; moderately sorted; subrounded |
| 1,400 | Silty sand (zS); very fine sand and silt with some fine to medium sand and pebbles of siltstone (?); some shell fragments; moderately sorted; subrounded |
| 1,410 | Silty sand (zS); very fine sand and silt with some fine to medium sand; moderately sorted; subrounded |
| 1,420 | Silty sand (zS); very fine sand and silt with occasional fine to medium sand; well sorted; subrounded |
| 1,430 | Silty sand (zS); very fine sand and silt with some medium to coarse sand; shell fragments; moderately sorted; subrounded |
| 1,440 | Silty sand (zS); very fine sand and silt with some medium to coarse sand; moderately sorted; subrounded |
| 1,450 | Silty sand (zS); very fine sand and silt with occasional fine to medium sand; well sorted; subrounded |
| 1,460 | Silty sand (zS); very fine sand and silt with some medium to coarse sand; moderately sorted; subrounded |
| 1,474 | Core subsample — Sandstone/siltstone; consolidated very fine sand and silt |
| 1,479 | Core subsample — Sandstone/siltstone; consolidated very fine sand and silt |
| 1,484 | Core subsample — Silty sand (zS); very fine sand and silt; very well sorted; subrounded |
| 1,489 | Core subsample — Sand (S); very fine sand; very well sorted; subrounded |
| 1,499 | Core subsample — Silty sand (zS); poorly consolidated very fine sand and silt |
Questions about San Diego Hydrogeology? Please contact Wes Danskin (email: wdanskin@usgs.gov or send a letter). 619.225.6132
