Correlations in eastern interior coal region. 

 [By G. H. Aahley.] 



White, David, corre- 

 lations with Appa- 

 lachian field. See 

 paper quoted in 

 next column. 



Ashley, G. H., Supplementary report on the coal 

 deposits of Indiana: Thirty-third Ann. Kept. 

 Dept. Geology and Nat. Res. Indiana, 1909. 



Ashley, G. H., The coal 

 deposits of Indiana: 

 Twenty -third Ann. 

 Rept. Dept. Geology 

 and Nat. Res. In- 

 diana, 1899. 



Fuller, M. L., and Ashley, G. H., Dit- 

 ney folio (No. 84), Geol. Atlas U. S., 

 U. S. Geol. Survey, 1902. Fuller, M. 

 L., and Clapp, F. G., Patoka folio (No. 

 105), idem, 1904. 



Cox, Collett, and others, earlier 

 usage of Indiana Geol. Sur- 

 vey. 



Kentucky Geol. Survey 

 reports. 



Illinois Geol. Sur- 

 vey reports. 



Ashley, G. H., The 

 eastern interior 

 coal field : Twenty- 

 second Ann. Rept. 

 U. S. Geol. Survev, 

 pt. 3, 1902, p. 273. 



Bull. Illinois Geol. Sur- 

 vey No. 16, 1910, p. 

 181; No. 17, 1912, p. 



74. 



Post- Allegheny. 



Allegheny. 



Pottsville. 



Feet. 



Rocka, with Aldrich and Friend ville coals. . . . 200 



Parker coal 1 



Interval 120 



Merom sandstone 40 



Interval with coals VIII a and 6 90 



Coal VIII (0-4) 1 



Interval ." 70 



Coal VII (0-6) 4 



Interval (6 inches to 60 feet) 40 



Coal VI (0-9) 6 



Interval, coals V a and b 70 



Coal V (4-11) 7 



Interval, coal IV a 130 



Coal IV (2-7) 5 



Interval, coals III a and 6 70 



Coal III (0-11) 6 



Interval, coals II a to II e 100 



Coal II (0-1) 2 



Interval (6 inches to 40 feet) 20 



Minshall coal (0-6) 4 



Interval 30 



Upper Block coal 3 



Interval 30 



Lower Block coal 3 



Mansfield sandstone, etc 100 



Cannelton coal (0-5) 3 



Sandstones, shales, and coals 50 



Wabash formation. 



Merom sandstone. 



Inglefield formation. 



Merom sandstone. 



Division VIII. 



Coal VIII. 



Division VII. 

 Coal VII. 



Ditney formation. 



Coal 18. 



Somerville formation. 



Carthage limestone. 



Millersburg formation. 

 Millersburg coal. 



Coal N. 



Coal M (N, L, K, etc.). 



Coals 17-13. 



Anvil Rock sandstone. 

 Coal 12 or A. 



Division VI. 

 Coal VI. 



Millersburg coal (lower bench). 



Coal L (N, M, K, etc.). 



Coal 11 or B. 



Division V. 

 Coal V. 



Petersburg formation . 

 Petersburg coal. 



Coal K (L, M, Y, etc.). 



Coal 9 or D. 



Division IV. 

 Coal IV (VII). 



Division III. 

 Coal III (VI). 



Coal VI. 



Coal V. 



Brazil formation. 

 Survant coal ? 



Rock Creek coal ? 



Holland coal ? 



(Coal N, etc.). 



(Coal L, etc.). 



Coal L. 



Coal K. 



? Coal 7 or F ? 



? Coal 6 or Fa ? 



? Coal 5 or Fb ? 



Coal IV. 



Coal I. 



Coal III. 



Coal F. 



(Division I). 

 Coal II (I). 

 Coal I. 



Conglomerate series or Mill- 

 stone grit. 

 Coal A. 



Feet. 



Sandstone,8hale, 



and thin coals. 450 

 Upper Coal 

 Measures. 



Merom group. 



Shoal Creek or 

 Carlin ville 

 limestone. 



Lower Coal 

 Measures. 

 Interval. . 180-270 

 Coal 7. 



Coal 6. 



Coal 5. 



Wabash group. 



Coal 4 ? 



Coal 3 ? 



Coal 2 ? 



? Coal 4 or G ? 



? Curlew limestone ? 



Conglomerate measures. 



Coal 1 B or L or Main 

 Nolan. 



Mansfield group. 



Battery Rock coals. 

 Caseyville conglom- 

 erate. 



McLeansboro formation. 



Carbondale formation 

 (includes coal No. 6 

 or Herri n coal at top 

 and coal No. 2 or 

 Murphysboro coal at 

 base). 



Pottsville formation. 



48011°— 12. (To face page 468.) 



