202 J. J. STEVENSON CARBONIFEROUS OF APPALACHIAN BASIN 



fork it is represented by cherty limestone, but near Louisa its place is 

 occupied by green calcareous sandstone. The Lower Cambridge lime- 

 stone is present at 12 miles south from Louisa, near the line of Johnson 

 county. 



Coarse rocks occur commonly between the Upper Freeport and the 

 Lower Cambridge in the northern part of Lawrence, but southwardly the 

 deposits are finer and there is little of coarse material. Red shale is re- 

 ported only from Catlettsburg, in northeast Boyd, where it underlies the 

 place of the Upper Cambridge. 



Southward from Lawrence county the section is uncertain. The anti- 

 cline in Johnson and southern Lawrence has led to removal of Cone- 

 maugh and much of Allegheny from a broad strip, beyond which at 

 present correlation is impossible. It seems altogether probable that 

 some Conemaugh remains in Pike county; it is possible that there may 

 be some even in southwestern Virginia, but at present no correlation may 

 be attempted. Mr J. M. Hodge's revised section in Wise county of Vir- 

 ginia shows that the material on which the writer depended for that area 

 is unexpectedly incomplete, and that the plane of separation drawn be- 

 tween Pottsville and Allegheny in southwestern Virginia and the adja- 

 cent portion of Kentucky may be incorrect.* 



WEST VIRGINIA 



Returning to the east and entering West Virginia on the west side of 

 Chestnut ridge, in continuation of the Third bituminous basin of Penn- 

 sylvania, one has Doctor White's Morgantown section, which, con- 

 densed, is: 



Feet. Inches 



1. Pittsburg coal bed 



2. Interval 34 



3. Little Pittsburg coal bed 1 6 



4. Sandy shale 17 



5. Limestone [Pittsburg] 1 



6. Interval 27 



7. Sandstone and sandy shale [Connellsville] ... 60 



8. Shales 20 



9. Black shale [Little Clarksburg] 1 



10. Clarksburg limestone 1 



11. Shale and sandstone. 45 feet ) 



Sandstone 20 feet j [Morgantown] 65 



12. Elk Lick coal bed 3 



* A. R. Crandall : Greenup, Carter, and Boyd counties, p. 25, plates 1, 26 ; figs. 1, 7 ; 

 30, flg. 4 ; sections 26, 47, 62, 65, 70-71, 78, 81. 85, 87 ; Southeast Kentucky coal field, 

 p. 28. 



J. M. Hodge in personal communication. 



