OAHABA COAL FIELD: LOLLEY BASIN. 87 
thick in this basin, yet in the Dailey Creek and Blocton 
basin it becomes four to five feet in thickness. 
The next workable seam outcropping still farther south, 
in this basin is the Montevallo seam ; this seam is thicker 
here than its average thicknsss in the Montevallo Basin. 
The following is a measured section : 
[Montevallo Seam in section 24, township 21 S., range 4 W.] 
CONGLOMERATE 
4FEET SANOSTONE 
1fo07 WHITISH SLATE 
pans 1tOitcHEeES Goon COAL 
ANAS eeaneneetenn HES oe Whine ryt ei 
ete Sfoor Mipleples COAL 
> 
QQQBjBO_| fOnplepHEes CURLY SLATE 
: ifoory Copl 
WN cere ster 
Above the Montevallo there are nearly five hundred feet 
of conglomerate interlarded with sandstones and slate. In 
this conglomerate formation, there are four seams of coal, 
all of them either too thin or too impure to be workable. 
The first one, the “Air-shaft Seem,” is about one hundred 
feet above the Montevallo; the next one above this is the 
Black Fireclay seam of which the following is a measured 
section : 
