34 THE PERMO-CARBONIFEROUS RED BEDS OF 



Carboniferous and much of the Triassic in this country, sections taken at 

 one locaHty are not to be depended upon as representing the succession at 

 another, even within a quarter of a mile. 



Section i. — Taken 2 miles west of Wichita Falls (Case). Surface covered 

 with rough ironstone concretions and rounded pebbles of quartzite. 



Feet- 



3. Fine red clay i- 



2. Purple sandstone; shaly above; gray and more massive below 6 



1. Red clay; bottom not seen. 



Section 2. — Taken 2 miles west of Wichita Falls (Cummins). p^^^ 



2. Red clay, with nodular iron ore 30 



1. Sandstone; thin-bedded 4 



Section 3. — Hill about 12 miles west of Wichita Falls (Cummins). p^^^ 



4. Red Bed clay 20 



3. Conglomerate, fossiliferous i 



2. Red clay, with iron nodules 20 



1 . Sandstone, thin-bedded 4 



"It must be remembered that the conglomerate mentioned in the sections is 

 the peculiar Permian conglomerate, composed of small round pieces of iron ore and 

 clay cemented together by iron." ^ 



This statement applies only to the sections by Cummins in the eastern 

 exposures of the Wichita, not to the conglomerate mentioned by Case in 

 the western (higher) exposures of the Wichita, and in the Clear Fork. 



Section 4. — Taken 3 to 4 miles southwest of HoUiday (Case). p^^^ 



4. Coarse brown conglomerate, overlying and replacing a shaly or massive 



sandstone, blue-gray in color 5 



3. Red and brownish clay ^ 20 



2. Brown and gray shaly sandstone and pea conglomerate (Cummins's "pecu- 



liar conglomerate ") ; some fossils 2-5 



1. Red clay, bottom not seen. 



Section 5. — Com Hill, or Tit Mountain, a little northeast of Dundee 

 (Cummins) . p^^t 



4. Red clay 6 



3. Conglomerate 8 



2. Red clay 3° 



1 . Thin-bedded sandstone 4 



Section 6. — Taken i mile west of Com Hill (Cummins). p^^^ 



2. Thin-bedded sandstone 4 



1. Red clay .• 30 



Section 7. — 3 miles east of the Dundee-Archer road, i mile or so south of 

 the Little Wichita (Case). p^^t. 



5. Shalv sandstone, overlain by local patches of heavj% brown conglomerate. . .5 to 15 



4. Red clay 20 



3. Shaly sandstone; gray, changing to red 5 



Inches. 



2. Thin layer of pea conglomerate, "peculiar conglomerate" 2 to 3 



1. Red and variegated clay, with local beds of light bluish-green clay, carrying 



amphibian and fish bones; bottom not seen. 



Section 8. — Taken on east or south side of Godlin Creek, just beyond its 

 juncture with the Little Wichita (Case). p^^t 



3. The capping rock a sandstone of varv'ing thickness, underlain by the usual 



conglomerate, which is here quite thick. 



2. Blue and red clay, with bones 2 



I. Northeast, along the ridges, the clay plays out, and a lower conglomerate 



comes up to the base of the sandstone. On the cast side of the Archer- 

 Dundee road the sandstone becomes very heavy for a short distance. 



'Cummins, Second Annual Report, Geological Survey Texas, 1890, p. 403. • ■ 



