EXPOSURES ON BELT CREEK 



307 



The Belt butte section is supplemented by that exposed on Belt creek, 

 which comprises the following sequence (represented graphically in fig- 

 ure 3) : 



Belt Greek Section. 



Feet. 



'-r.-j.tn, 



14. 

 13. 

 12. 

 11. 

 10. 

 9. 



( (verlying beds of Belt butte section 1,192| 



Coal .' 10 



Shaly sandstones 100 



I'h.i i:i .;. Sed 



/;■ // i 'reck. 



Sandstone belt 



Shales, limy 



Sandstones, white 



Limestone, gray and red, rust}' 



Sandstone, white 



Sandy shales, the lower 40 feet very ferruginous and 



brown 



s. | Sandstone, white, cross - bedded ; forms persistent 



ledge 



Sandstone, shaly and iron stained 



Sandstone ; ledge forming bluff 



7. Limestone, dense, light earthy gray 



6. Conglomerate and sandstone, Jurassic fossils 



5. Limestone, white, red earthy patches, Paleozoic 



facies 



4. Otter Creek shales; alternating gray, purple, green 

 and Mack shales and earthy limestones yielding 

 Carboniferous fossils; comprising — 



x. Shales, dark gray and black alternating 



with purple and green 45 



w. Limestone 5 



v. Shale, gray 30 



tti Limestone, white 3 



t. Shales, green and purple, limestone 



lenses \ 25 



s. Limestone, white, conchoidal fracture. 6 



r. Shale, gray, green and red 8 



q. Limestone, hard, dense, purplish-brown L} 



p. Shale 1$ 



o. Limestone, pebbly, containing gaster- 



opod shells 2 



a. Shale, gray 3 



in. Limestone, gray, weathering creamy, 



usually brecciated 2 



/. Shales, carrying Rhynehonella, etc 15 



/,-. Limestone, irregularly bedded and of 



varying lints of gray 5 



j. Shale, black and earthy I 



i. Limestone 15 



h. Shale, earthy dark gray 8 



g. Limestone, soft, crystalline •"> 



/. Shale, purple-gray < 8 



i . Limesti »ne 3 



d. Shale, black 16 



c. < rypsum -■' 



/>. Limestone conglomerate 2 



n. Shale, dark gray 2 



Black chert bell 



Limestones and shales 



< ij |isuin 



Sai n Is, gray and while 



25 



50 



150 



25 

 5 



95 



6 

 10 



50 



5 



215 



90 



I'll' 



8 

 80 



• » 

 • > 



ll ( 



