182
Architectural Elements of the Overbank Environment
I
2000 II· 609 m
EXPI..ANATlON
Fig. 7.17. Examples of splits in a coal seam. The Stockton seam, east Virginia. Lower diagram shows the splits at an
enlarged vertical scale. (Ferm and Staub 1984)
;;J11l l Coal Missing or Sptil
� Coal Missing
!
\ 0
Terre Haute
0
20
40
60k m
...)
Of- --'--, T 0-'---'-, 40 mi
f)
� /
Folsomville/ Oykersburg
fr J
Kentucky
Fig. 7.18. Map of thre'e major sandstone ribbons in Carboniferous coals of Illinois and Indiana. (Compiled by McCabe
1984)