CAMBRIAN CORDILLERAN SECTIONS — WALCOTT 20$ 



SHERBROOKE FORMATION (continued) : 



Feet 

 2c. Gray oolitic limestone, with thin bands of interbedded shaly, 

 blue gray limestone. Gray, dolomitic, buff-weathering, flat- 

 tened nodules, stringers, and thin layers of limestone occur 

 in a very irregular manner 65 



Fauna: 

 lUanurus. 

 Agnostus. 

 Ptychoparia. 

 Bathyurus-Vike pygidia. 



Total of 2 590 



Arenaceous, dolomitic, steel gray limestone weathering light 



gray and buff gray 610 



The line of demarcation between 3 and the bluish gray lime- 

 stones below is irregular. The gray beds of 3 extend along 

 the cliff and abruptly change to bluish gray. In the upper 

 100 feet of 3 irregular masses of bluish gray limestone occur 

 like great lentiles, as though they were cores left in the 

 general alteration (dolomitization) of the strata. 



Total of Sherbrooke formation i,375 



PAGET FORMATION [Walcott, 1908a, p.3] : 



1. Massive bedded, dark bluish gray limestone forming base of 



cliff on the west side of the amphitheater on the west slope 

 of Mount Bosworth and, with 3 of Sherbrooke formation, 

 the upper cliffs of Paget Peak and Mount Daly 60 



2. Massive beds of oolitic limestone, with irregular, interbedded 



bands of green siliceous shale. Thin layers, irregular string- 

 ers, and nodules of gray buff weathering dolomite occur in 

 the oolitic limestones 3004- 



The base of 2 is covered by talus slope on line of the section. 

 It is well exposed on the southeast face of Mount Daly and 

 Paget Peak. The thickness is placed at 300 feet, which I 

 think is less than the total thickness. Over 200 feet was 

 measured. 



Fauna: 

 Hyolitlies. 

 Agnostus. 

 Crepicephalus. 



Total of Paget formation 360-}- 



BOSWORTH FORMATION [Walcott, ipoSn, p.3] : 



I. Massive bedded, gray, and bluish gray arenaceous dolomitic 

 limestone. Several bands of steel gray, yellowish buff 

 weathering bands of strata occur in the lower half of i 600-H 



