94 
OIL FIELDS OF TEXAS-LOUISIANA COASTAL PLAIN, [bull. 212. 
Log of Bayou City ivell, eastern side of Iowa Colony lands, Jefferson County, Tex. 
[Elevation, 25 feet.] 
Character of strata. 
Red clay 
Red sand 
Blue clay 
Sand 
Clay 
Red sand 
Blue clay 
Sand 
Blue clay with hard shaly streaks „ 
Blue sand 
White sand 
Blue clay 
Greasy blue clay (called soapstone) 
Hard sand 
Blue clay same as No. 13 
Gray indurated sand 
Blue clay 
White sandstone _ _ * 
Indurated sand 
Tough red clay 
Indurated sand 
Broken shells 
Blue clay 
Sand and clay mixed 
Fine white sand_ . 
Blue clay 
Blue sand and small gravel 
Shale 
Brown oily clay 
Quicksand 
Coarse crystalline sand . _ 
Blue clay 
Clay and sand 
Gravel 
White sand 
Blue clay 
Rock 
Sand with salt water . 
Blue clay 
White sand 
Thickness. From— 
Feet. 
Feet. 
18 

23 
18 
17 
41 
20 
58 
13 
78 
2 
91 
8 
93 
1 
101 
128 
102 
15 
230 
11 
245 
11 
256 
3D 
267 
15 
306 
9 
321 
16 
330 
10 
346 
10 
356 
5 
366 
4 
371 
17 
375 
1 
392 
27 
393 
13 
420 
25 
433 
66 
458 
55 
524 
31 
579 
1 
610 
4 
611 
24 
615 
41 
639 
55 
680 
35 
735 
188 
770 
409 
958 
i 
1,367 
92^ 
1,3671 
51 
1,460 
180 
1,511 
