HAYES AND 
KENNEDY 
J D ] DETAILED SECTIONS. 53 
Between Roganville and Jasper, on the Gulf, Beaumont and Kan- 
sas City Railroad, in Jasper County, the blue clays, with lines of irregu- 
lar stratification and ferruginous and calcareous concretions, appear in 
the cuttings for over 2 miles. In this localit}^ the ferruginous and 
calcareous concretions appear to lie in definite lines, although broken 
in their longitudinal direction. These concretions are flattened oval 
in shape and range in length from a few inches to 2 or 3 feet. These 
beds again appear between Newton and Burkeville, but in this locality 
are very generally covered by a ferruginous gravel containing consid- 
erable quantities of quartz and jasper and carnelian pebbles, and in 
several places indurated brown sand and ferruginous sandstone. In 
the neighborhood of Burkeville, in Newton County, they form a small 
prairie with black calcareous soil, and carry a thin seam of hard fer- 
ruginous sandstone containing such Eocene fossils as Ostrea alaba- 
miensis, Cerithium sp., Venericardia, Crassatella antestriata Gabb, 
C. trapaquara Harris, Cardium, Astarte, Chama, Cytheria sp., Cor- 
bula sp. , and Area like mississippiensis Conr. 
In Louisiana the calcareous blue clays are seen near Hornbeck in 
Vernon Parish, and at intervals along the Kansas City Southern Rail- 
way northward beyond Christie. A general section in the vicinity of 
Hornbeck shows the sequence of the beds to correspond with the 
Texas section. 
General section near Hornbeck, La. 
1. Surface brown, red, and mottled sands, in places weathering to a gray or brown- 
ish white. 
2. Bine calcareous clays with some sandstone bowlders and ferruginous and cal- 
careous concretions. 
3. Gray sandstone. 
Few wells have been drilled in the areas occupied b}^ these Frio 
clays and the underground conditions are not well known. These 
beds are not usually water bearing, and when water is afforded by 
them it is generally unfit for use. When water is not obtainable from 
the surface creeks and smaller streams, or from shallow wells where 
the overlying sands overlap the clays, it is usually got from ponds or 
cisterns. The only wells drilled to any depth throughout the region 
are two recently drilled, prospecting for petroleum. These are widely 
separated, the first being situated 5 miles west of Valda in Polk 
County, Tex., and the second being about 12 miles southwest of 
Many, in Sabine Parish, La. 
