THE WEST POINT, TEXAS, SALT DOME 657 



Thickness Depth 



Formation in Feet in Feet 



Soft coal, brown shale, and pyrites 34 412 



Brown shale and bowlders 29 441 



Brown shale' 25 466 



Brown shale, gravel, and pyrites 18 484 



Soft rock 2 486 



Brown shale, considerable blue sand, and pyrites ... 31 517 



(Missing) .... 



Brown shale 3 555 



Blue concreted sand bearing gas and strong sulphur water 5 560 

 Alternating dark brown shale, deep blue concreted sand, and 



considerable pyrites, here passed through 4 inches very i 



hard pale rock, color of limestone, but upon test shows not 



to be limestone 16 576 



Blue concreted sand 10 586 



Dark brown gumbo with some black shale and pyrites . . 19 605 



Dark blue gumbo 10 615 



Blue sand, shale 2 617 



Blue sand gumbo 13 630 



Black, very hard shale 25 655 



Very hard blue laminated rock 2|" .... 



Blue sand and black shale 3 658 



Very hard rock 3 661 



Alternating stratas of black gumbo shale with concreted 

 blue sand and numerous iron pyrite bowlders but no 



rock stratum 559 1,220 



Artesian water flowing out of the well was encountered at 163 

 feet, and oil and gas were encountered from 271 to 319 feet. The 

 gas is said to have had a sweet and pungent odor and to have 

 burned with a blue flame. 



Apparently at least the first 400 feet of this log represents the 

 Wilcox formation. Below 400 feet the formations are possibly 

 Wilcox and Midway for 200 to 250 feet, and the remainder of the 

 log represents the Navarro formations. 



Aside from the very scant information obtained from the wells, 

 we can only argue by comparison and inference regarding under- 

 ground conditions. 



At the nearby Palestine dome the Midway is believed to be 

 absent, but all of the various formations of the Gulf series of the 

 Cretaceous outcrop in the center of the dome. No continuous 

 section is exposed and consequently the thickness of the various 

 formations cannot be determined. 



