GEOLOGICAL SURVEY OF THE TERRITORIES. 



41 



1. 



2. 



3. 

 4. 



6. 



8. 



Dark-brown shaly clay, with thin 



geodes ofcalcspar. The whole 



500 feet. 



A bed of broken vsandstone, 

 fine-grained, freqnently ris- 

 ing above the surface. 4 

 feet. 



Dark slaty shale. 30 feet. 



A somber brown qnartzose 

 sandstone projecting np on 

 the side of the mountain 

 like a wall. 50 to 80 feet. 



Dark-brown shale, with three 

 layers of sandstone, 4 to 10 

 feet thick. Toward the sum- 

 mit of the hill or mountain, 



. which is 700 to 1,200 feet 

 above the i)ase, the sand- 

 stones project up with very 

 rugged, irregular edges. 

 The rock is very compact, 

 chalkv, fracturing easily. 

 300 feet. 



A rusty-brown mud-quartzite. 

 Inclination, 75^. 100 feet. 



Interval of softer brown mud- 

 shale. 500 feet. 



Brown sandstone, rising np 

 in a high wall 100 feet. Be- 

 low it are some thin beds 

 of sandstone, one of which, 

 2 feet thick, is made up of 

 small pebbles, cemented 

 with sand. 30 feet; dip, 80^. 

 9. Interval of brown, arenaceous, 

 shaly, laminated sandstone. 



10. High wall of brown sandstone, 



with huge, concretions, ir- 

 regular bedding, with fine 

 illustrations of wave-mark- 

 ings. 20 feet. 



11. Low interval of soft material, 



black shale or slate. 300 

 feet. 



12. High wall of rusty -brown 



qnartzite, so hard and brit- 

 tle and broken by jointage 

 as to appear metamorphic. 

 20 feet; dip, 70°. 



13. Three or four thin beds of 



quartzite, ragged edges 

 standing up 5 to 30 feet 

 above the surface, with 

 sotter clays intervening. 

 100 feet. 



14. Grassy interval,probably slaty 



clay. 75 feet. 



layers of brown sandstone. With 

 gradually passing to a slaty shale. 



3 



cfq" 



