72 C. W. Honess — Stanley Shale of OMalioma. 



tered repeatedly in outcrop all the way from Little River, 

 sec. 34, T. 4S., R. 21E., east-nortlieast for 40 miles to sec. 

 21, T. IS., R. 27E. The black flints are without organic 

 remains and have not been found west of Little River. 



The topmost 2,000 feet or so of the Stanley is a rather 

 monotonous series of alternating, even tine-grained sand- 

 stones and sandy shales, thin-bedded, more or less ripple- 

 marked and cross-bedded in the lower portion but 

 becoming heavier bedded in the uppermost members and 

 passing gradually, by transition, into the coarser sand- 

 stones and '^ millstone grits" of the Jackfork sandstone 

 formation. 



The writer succeeded in obtaining a succession of the 

 uppermost beds including the transitional series and 

 basal portion of the Jackfork in a place where there was 

 no doubt as to the correct sequence of the deposits and 

 this will be appended in condensed form. The succession 

 occurs in the north central part of sec. 22, T. IN., R. 26E. 

 along Beech Creek. 



Staxley-Jackfork Transition Series. 

 Beciion on Beech Creek, Sec. 22, T. IN., B. 26E., Okla. 



Beginning 400 paces west and 300 paces south of W.14 cor. 

 sec. 23, T. IN., R. 26E. 



Top. Feet. Inches. 



38. Gray sandstone thick-bedded, concluding the 

 section 100 paces south and 36 paces south- 

 east of the N.y4, cor. sec. 22, T. IN., R. 26E. 14 6 



37. Covered, probably shale 12 



36. Massive ledges fine-grained gray quartzitic 



sandstone 22 2 



35. Covered, probably shale 12 



34. Massive and heavy bedded sandstones and 



quartzites 4 8 



33. Black carbonaceous shales and thin argilla- 

 ceous sandstones 10 



32. Sandy shales and thin sandstones interbedded 



with heavy massive ledges gray quartzite . . 25 10 



31. Covered, probably a clay shale 20 



30. Thin, gray, hard sandstones with sandy car- 

 bonaceous shale partings 10 5 



29. Massive gray sandstones and quartzites un- 

 dulating but without shale partings, in beds 

 one to ten feet 87 4 



28. Poorly exposed sandy shales and sandstones. . 62 



