410 GEOLOGY OF NORTHWESTERN TEXAS. 



SECTION NO. 24. 



Made at a bluff on Salt Fork, on section 8, block 1, Houston and Texas 

 Central Railway surveys. 



1. Red sandy clay 4 feet. 



2. White gypsum 3 feet. 



3. Red clay, with thin seams of gypsum 10 feet. 



4. Mottled sandstone 6 feet. 



5. Red clay, with seams of mottled sandstone 20 feet. 



6. Mottled sandstone 4 feet. 



7. Red clay and mottled sandstone. 5 feet. 



8. White gypsum 3 feet. 



9. Red clay , 10 feet. 



10. Gypsum, alabaster 1 foot. 



1 1 Red clay. 4 feet. 



Total 70 feet. 



The strata at all places heretofore have been very regular, with a slight dip 



to the nortwest, but at the above section and everywhere else to the foot of 

 the Plains the strata are very much distorted. 



The beds of gypsum very often present a crumpled appearance, the folds 



not being more than one or two inches across. The dips or foldings do not 

 appear to be in any particular direction. The general dip of the formation 

 is still toward the northwest. 



section no. 25. 



Made in a gulch north of Section No. 24. 



1. Mottled sandstone. ... 3 feet. 



2. Mottled sandstone and clay 4 feet. 



3. Gypsum . 2 feet. 



4. Red sandy clay 10 feet. 



5. Gypsum 1 foot. 



6. Mottled clays 20 feet. 



7. Gypsum 3 feet. 



Total 43 feet. 



Deep gulches are washed into the strata, many of them miles in extent, with 

 perpendicular walls. 



section no. 26. 

 Made about two miles west of Section No. 25. 



1. Red clay 20 feet. 



2. Massive gypsum 4 feet. 



3. Red clay 20 feet. 



4. Massive gypsum 3 feet. 



5. Red shale, with seams of fibrous gypsum 30 feet. 



Total 77 feet. 



