OHARAOTERISTTO SECTIONS 47 



III. Warsaw Section. 



Feet. 



6. Limestone, ash-colored, brecciated 25 



5. Gritstone, buff, calcareous, fossiliferous 8 



4. Clay-shale, blue, with thin bands of impure limestone 25 



3. Limestone, compact, buff, with encrinital layer above 6 



2. Clay-shale, blue, "geode-bed" 30 



I. L\me8tone,thinlybedded,encrinital, highly fossiliferous (exposed) 15 



Nos. ] to 5 are regarded as Keokuk ; of these, Nos. 3, 4 

 and 5 are the typical Warsaw of Hall. No. 6 belongs to the 

 Saint Louis. 



1 Y. Louisiana Exposures. 



Feet. 



15. Soil 2 



14. Limestone, compact, yet thinly bedded, encrinital, with consid- 



able gray and brown chert 50 



13 . Limestone, massive, white, encrinital, coarse-grained 12 



12. Limesto-e, brown, encrinital, with irregular chert bands and thin 



clay seams occasionally 20 



II. Limestone, very heavily bedded, white, encrinital 11 



10. Limestone, brown, encrinital, somewhat sandy in places; earthy 



and disintegrating on exposure to the weather 10 



9. Limestone, fine-grained, buff 8 



8. Shale, brown, sandy 12 



7. Shale, green 60 



6. Limestone, thinly bedded, compact, buff, in layers from 4 to 6 



inches in thickness, with a thin and sandy highly fossiliferous 



seam at the base 50 



5. Clay shale, blue 2 



4. Shale, black, fissile 4 



3. Limestone, compact, massive, buff. 10 



2. Limestone, gray, oolitic 5 



1. Shale, blue, with numerous thin limestone bands, rich in fossils 



( exposed ) 60 



All above No. 9 belong to the Burlington limestone; the 

 beds Nos. 6 to 9, inclusive, are Kinderhook, 9 being the Chou- 

 teau limestone of Swallow-; Nos. 7 and 8 the Vermicular sand- 

 stone and shale of the same author, and No. 6 the lithographic 

 limestone. 



V. Saint Louis Section. 



Feet. 

 Limestone, blue and gray, compact, rather heavily bedded, more or 

 less highly fossiliferous, with thin marly partings ( exposed 

 to water level ) 125 



