WESTERN OUTCROPS IN KENTUCKY 81 



2. Hartselle : Feet 



Sandstone 25 



Limestone 164 



8. Tuscumbia : . 



Limestone, cherty 140 



The upper portion of the Bangor, as here given, is evidently the Pen- 

 nington shale of Campbell. Mr Loughridge places the Bangor and the 

 sandstone of the Hartselle in the Chester and the rest of the section in 

 the Saint Louis ; but the cherty limestone at the bottom is distinctly 

 the Lithostrotion bed of Tennessee, containing that fossil in abundance, 

 so that it is separated here in order to follow the northward variation 

 more easily.* 



Pulaski is northeast from Clinton. There Professor Crandall finds the 

 Chester well exposed in the northern and central parts of the county, 

 where it varies from 25 to 40 feet of earthy limestone with greenish 

 reddish shales. He does not refer to the presence of any sandstone, and 

 gives the Saint Louis as 250 feet thick in the western part of the county, in- 

 cluding under this term the equivalents of the Hartselle and Tuscumbia.f 



Rockcastle is northeast from Pulaski. Mr Lesley in his notes does 

 not divide the limestone, but gives simply total thicknesses at several 

 localities. He finds it increasing southeastwardly, the measurements 

 l>eing 115, 145, 152, and in the center of the county 182 feet. He sug- 

 gests that it may reach 220 to 240 feet in the southeast corner, and notes 

 that geodes occur above the lower third, which consists almost wholly 

 of white limestone. 'I 



Mr Sullivan says that in eastern Rockcastle the " Saint Louis " is from 

 200 to 210 feet, and his notes seem to show that the " Chester " is ab- 

 sent ; but in Jackson county, the next east, he reports the " Chester " as 

 15 to 30 feet of reddish to greenish shales and argillaceous limestone, 

 separated by 10 to 20 feet of slial}^ sandstone from the " Saint Louis " 

 l)elow, which is from 225 to 250 feet thick. The upper 25 to 50 feet of 

 the Saint Louis has many flint concretions, but the rest is close-grained 

 whitish limestone.§ 



Estill county is northeast from Rockcastle. Mr Lyon obtained here 

 a detailed section at about 5 miles from the Kentucky river : 



*R. H. Loughridge: Geol. Survey of Kentucky, Report on geology of Clinton county, 1890, pp. 

 13, 14. 



fA. R. Crandall: Geol. Survey of Kentucky, Geology of Whitely county and part of Pulaski 

 county (no date), p. 7. 



J Joseph Lesley : Fourth Annual Report on Geology of Kentucky, 1801, pp. 482-483. 



gG. M. Sullivan : Geol. Survey of Kentuel^y, Geology of parts of Jackson and Rockcastle coun- 

 ties, pp. 6, 7, 18. 



