104 GEOLOGICAL RELATIONS OF ALABAMA CLAYS. 



Dr. Kies' analyses of the two clays here exposed 

 may be seen below under numbers TO and 71. 



MARION COUNTY. 



While the strata of the Coal Measures underlie the 

 entire area of Marion county, yet these rocks do not 

 form the surface over any great proportion of this 

 area, since they are very generally hidden, except 

 along the valleys of the streams, by overlying mea- 

 sures of the Tuscaloosa and Lafayette formations. 

 Among the strata of the Tuscaloosa, here as in Pay- 

 ette, we find many fine beds of clay. Here again, Dr. 

 Little has collected many details of the occurrence of 

 these clays and what follows we take mainly from his 

 notes, though use is 1 made also of what has been pub- 

 lished in my Coastal Plain Keport, pages 331, 332 and 

 333. 



In the lower part of the county along the line of 

 the K. C. M. & B Railroad, clays are exposed in rail- 

 road cuts all the way from Eldridge to Guin. 



From New River crossing near Texas P. O., on to 

 Glen Allen, several beds of clay, of no great thickness, 

 are to be seen. A mile east of Glen Allen, in what is 

 known as Stewart's Cut, we have the following sec- 

 tion: 



Stewart's Cut, one mile east of Glen Allen. 



Gray laminated clay with fine leaf impressions ... 25 feet 

 Ferruginous sandstone crust of irregular thickness 1 foot 

 Cross-bedded sands of yellow and pink colors 25 feet 



The uppermost of the beds, above named, contains 

 many beautifully preserved leaf impressions which 

 are very easily gotten out. The clay has been ex- 

 amined by Dr. Ries under No. 18, S. 



At another cut, half a mile nearer Glen Allen, we 



