32 
RIO GRANDE COAL FIELDS OF TEXAS. 
| BULL. 1W. 
II. Anacacho formation — Continued. Feet. 
2. Soft material containing fragments of a very large Inoceramus 5 
1. Thin, very hard, brown, siliceous ledge 3 or 4 
beds. 
279 
Total Anacacho 
I. Austin chalk: 
3. Hard brownish limestone, containing many Grypluva aucella 5 
2. Hard chalky limestone 10 
1 . Unexposed — to bottom of arroy o 20 
Total Austin chalk exposed 35 
Total Anacacho beds , 279 
Total here exposed 314 
The measurements were made with an aneroid barometer and must be regarded 
as only approximately correct. 
The deposit of asphalt at the Lithocarbon Rubber Company's mine is in the 
Anacacho limestone. The asphalt-bearing horizon corresponds with the upper part 
of No. 6, above. 
The following is a compilation from a large number of sections 
made along Turkey Creek, beginning at Cline Mountain, in the Brack- 
ett quadrangle, and extending to 
d/ectryosj/s. 
Gryphaaa ises/cu/a/79 
us 
Wagon Top Butte, in the Uvalde 
quadrangle, 
( 'ompilation of 
20. 
sections 
Creek. 
along Turkey 
Feet. 
19. 
18. 
Hard gray limestone. Thislime- 
stone is coarsely granular, loose 
textured, and possesses a very 
rough, honeycombed, weath- 
ered surface. It contains an 
undetermined species of Radi- 
olites or Sphserulites 10 
Thinly laminated, hard or marly 
limestone 20 
Ledges of gray limestone, with 
honeycombed surface, but not 
so hard as the uppermost lime- 
stone. This bed is not well 
exposed, so that its detail could 
not be determined 30 
Hard, dark-brown, granular 
limestone 3 
Light-colored, yellowish, granu- 
lar limestone in hard, thick 
ledges. This bed contains 
specimens of a large Exogyra 
and a Radiolite; also some 
pebbles of white and yellow 
quartz 7 
15. Thinly bedded limestone, becoming a thinly laminated, firm, calcareous shale . 15 
14. Laminated yellow calcareous marl 50 
16 
Fig. 4. 
-Section of the Anacacho Mountains, Kin. 
ney County. 
