404 GEOLOGY OF NORTHWESTERN TEXAS. 



SECTION NO. 33. 



Two miles west of Wichita Falls. 



1. Red clay, with nodular iron ore 30 feet. 



2. Sandstone, thin bedded 4 feet. 



Total 34 feet. 



Another general section was made across the Permian strata, beginning at 

 the contact between the Carboniferous Beds and the Permian near the line 

 between Haskell and Shackelford counties, or the divide between the Clear 

 Fork of the Brazos and California Creek. The contact here is between the 

 Clear Fork division of the Permian and the Albany division of the Carbon- 

 iferous. 



The exact line of contact between the two formations at this place can not 

 be definitely determined, as the strata are entirely covered by drift. In the 

 rocks at the Clear Fork there were found only fossils of the Coal Measures, 

 while at California Creek the fossils of the Permian are abundant. The 

 texture of the rocks was observed to have changed, as well as the colors of 

 the clays. The dip of the strata is very nearly the same. 



Section No. 10, made about one mile northwest of the northeast corner of 

 Swenson's pasture, and the northeast corner of a survey for the Buffalo Bayou, 

 Brazos and Colorado Railway Company. Beginning at the top. 



1 . Bluish clay 4 feet. 



2. Gray limestone 1 foot. 



3. Bluish clay, with Syringapora 4 feet. 



4. Thin seam sandstone 2 inches. 



5. Reddish clay 6 feet. 



6. Fossiliferous limestone 2 feet. 



Total 11 feet 2 inches. 



SECTION NO. 11. 



The following section was made one mile east of California Creek, and to 

 the east of our line: 



1. Blue clay 3 feet. 



2. Limestone, much fractured 1 foot. 



3. Blue clay 3 feet. 



4. Sandstone, cross-bedded 6 inches. 



5. White and red clay 20 feet. 



6. Gray limestone 2 feet. 



7. Bluish clay 8 feet. 



8. Dark f ossiliferous limestone 1 foot 6 inches. 



9. Red clay 8 feet. 



1 0. Limestone 1 foot. 



Total 48 feet, 



