90 GEOLOGICAL RELATIONS OF ALABAMA CLAYS. 



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Section No. 2, near the preceding. 



1. Yellowish sands, beautifully cross-bedded.... 4 feet 



2. White and pink clays, interbedded with yellow 



sands 10 " 



Section No. 3, same locality. 



1. Purple clays interbedded with reddish sands.. 6 feet 



2. Mottled (red and yellow) sandy clays, partly 



obscured by overl.ying pebbles and sands 12 " 



3. Red sands with small lenticular bits of yellow 



clay 5 " 



4. White and yellow laminated clays 6 to 8 " 



At the bridge over Mulberry, near Vineton, the fol- 

 lowing strata are shown in the banks of the creek : 



Section on Mulberry Creek, near Vineton. 



1. Mottled purple clays, similar to those at 



Steele's Bluff on Warrior River 5 feet 



2. Yellow cross sandy beds 2 " 



3. Mottled clays sandy below 5 " 



4. Grayish white m caceous sands, with irregular 



patches of red and yellow colors ; to water's 



edge 4 " 



BIBB COUNTY. 



Prom Yineton up to Eandolph very little of the 

 strata of the Tuscaloosa formation can be seen until 

 within three miles of the latter place, where dark pur- 

 plish gray clays are to be encountered. Between Ran- 

 dolph and Centerville, along the public road, and at 

 many points alon^ the railroad f^om Mapleville to 

 Centerville, there are occurrences of the massive clays 

 of this formation. These clays have given much 

 trouble and caused much expense to the railroad, 

 from the fact that when softened by the winter rains 

 they squeeze out into the railroad cuts, filling them up 

 and overflowing the track. Where the clays from the 

 cuts are used to make embankments, they are equally 

 troublesome, as they are continually giving way. We 



