subsurface geology and coal resources of the pennsylvanian system ...

PENNSYLVANIAN SYSTEM IN lLLlNOlS BASIN
1) i)i; ir +a Z = r G G Z ; = G E S % 0; = C*l)?b------
Q Q)O od tt mo md rcn P lon n mcn or ao Q) tco O ~ O
u np- r d P\P trl at mrl V) an r oocu m POI (d ad POI
n na, no\ P O no\ not nm n no\ n no\ nOI n nQ n nm na,
d d N d d d d d d d d d