276 
ley? noted the occurrence of odlite in the Mitchell limestone in many 
places; it has therefore been thought safe to consider this odlite, in the 
area studied. of Mitchell age, especially as the stratigraphic relations seem 
to confirm this view. 
At 1°, the Mitchell odlite is at the level of the track and is overlain 
by 8.5 feet of sandstone. West of this the Mitchell limestone forms the 
surface rock so that sinkhoies are a conspicuous feature, but sandstone 
fragments are found. The relations of the strata at 2 have been greatly 
disturbed by the solution of the underlying Mitchell limestone so that a 
synclinal fold has been developed. Section I was taken at this point in 
the eastern part of the cut. The lower limestone, No. 2 of the section, has 
been dissolved to such an extent that only isolated blocks remain in the 
8 Ashley, G. H., Carboniferous Area of Southern Indiana, 27th Ann, Rep. Ind. 
Dept. Geol. and Nat. Res. 1902, p. 82. 
® Numbers refer to cuts on accompanying profile section, 
