STE GENEVIEVE FORMATION 
243 
FEET. 
10. Limestone, compact, gray, consisting of 
moundlike masses of a conglomeratic 
limestone flanked by more evenly bedded, 
less disturbed layers 13 
(disconformity) 
LOWER ST. LOUIS : 
9. Limestone, massive, compact, dolomitic, 
gray when fresh but weathering yellow- 
ish. The Lithostrotion canadensis zone 0-2 
8. Limestone, buff, dolomitic, massive, flaking 
off obliquely, fossiliferous in lower por- 
tion 4^-5 
7. Limiestone, gray when fresh but weathering 
buff, dolomitic, locally grading wholly or 
in part into dark gray, non-dolomitic, 
conglomeratic limestone 7 
6. Limestone, bluish when fresh but weather- 
ing buff, fucoidal 3 
5. Limestone, brownish, dolomitic, tough, with 
discontinuous seams of unaltered gray 
limestone in upper portion. 
4. Limestone, drab, compact, brittle, with 
numerous rounded chert concretions, 
arching up over moundlike masses of bed 
beneath, about 2 
3. Limestone, conglomeratic, consisting of 
mingled blocks of gray compact lime- 
stone; gray subcrystalline limestone; 
brownish dolomitic limestone, and soft 
bluish limestone either in a shaly or 
a calcareous matrix 12-13 
2. Limestone, gray, compact, dense, dolomitic 
in basal portion, with thin wavy and con- 
cretionary stratifl cation 1 
(disconformity) 
WARSAW: 
1. Shale, bluish, argillaceous (exposed) 5 
INCHES. 
6 
6 
6 
10 
The Pella beds are again well exposed at an abandoned quarry 
on the south bank of Indian creek, 3% miles west of Farming- 
ton (N. W. !4 N. E. Sec. 5, T. 67 N., R. 8 W.). The suc- 
cession in this quarry and in the creek below is as follows ; 
SECTION II. 
12. Drift, yellowish, sandy 
PELLA : 
11. Limestone, light gray, dense, lithographic- 
like, breaking with conchoidal fracture, 
becoming coarser-grained and slightly 
crinoidal in the upper portion; in rather 
heavy layers separated by thin partings 
of shaly limestones, locally seamed with 
calcite veinlets following fractures; some 
layers exhibiting stylolytic ^ructure 
FEET. INCHES. 
0-8 
8 6 
