TENNESSEE 121 



Feet. Inches 



1. Conglomerate 130 



2. Coal and shale 25 



3. Sandy shale 50 



4. Coal bed 6 



resting on the limestone. Evidently the Bonair and Cliff are one here, 

 the thickness given being only 5 feet less than the combined thicknesses 

 at Tracy City. A thin coal bed underlying the conglomerate mass 

 becomes 3 feet thick within a short distance ; it is the " Etna " of 

 Safford, the " Cliff bed " of the Alabama reports. The sandy shale of 

 number 3 is the hard sandstone, number 18, of the Tracy City section, 

 which there also overlies a coal bed. The bottom members of the Tracy 

 section have disappeared. Farther north there is a greater decrease 

 below the Cliff, the whole thickness is 54 feet, while at the northern 

 border of the county it is less than 20 feet and the coal beds are only 

 one foot apart. Evidently a condition like that observed in White and 

 on the border of Bledsoe and Cumberland must exist in southern or 

 southeastern Van Buren. 



The Sewanee coal bed is mined at many places around the petty areas 

 of the Walden in the southern counties. At the Sewanee mines in 

 southern Grundy it is from 2 feet 6 inches to 7 feet and yields a some- 

 what crushed coal; at most localities a small bed, the Jackson of 

 Safford, appears between it and the Bonair, but it is rarely thick enough 

 to be mined. 



In Franklin county, west from Marion, the Lookout sandstone is 

 present for two or three miles beyond the Marion line. Professor 

 Safford gives two sections, one of which is within a half mile of the 

 Alabama line, near Anderson, as follows : 



Feet. Inches 



1. [Bonair] Not measured 



2. Shale with thin coal bed. . . 40 



3. Cliff sandstone, estimated 120 



4. Coal bed [Etna] , average 3 



5. Fireclay, shale, and sandstone 31 



6. Sandstone and sandy shale 55 



7. Shale 1 to 6 



8. Coal bed 2 6 to 3 



9. Shale Not measured 



The shale at the bottom is 38 feet thick in the other section at a short 

 distance farther north. The thickness of the Cliff sandstone may be 

 excessive, for in the other section it measured but 74 feet. 



The Sewanee coal bed is mined at several localities along the westerly 



