310 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 75 



Feet Meters 



masses of bluish-gray limestone occur like great 

 lentils, as though they were cores left in the general 

 alteration (dolomitization) of the strata. 



Total of Sherbrook formation 1,375 419.0 



Paget Formation 



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 the 

 Sherbrook formation, the upper cliffs of Paget Peak 

 and Mount Daly 60 18.3 



2. Massive beds of oolitic limestone, with irregular, inter- 



bedded bands of green siliceous shale. Thin layers, 

 irregular stringers, and nodules of gray, buff-weath- 

 ering dolomite occur in the oolitic limestones 300 -f 91.4 + 



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 

 estimated at 300 feet (91.4 m.), which I think is" 

 less than the actual thickness. Over 200 feet (60.9 m.) 

 was measured. 

 Fauna. — (570) : 



Hyolithes sp. 



Agnostus sp. 



Crepicephalus 2 sp. 



Total of Paget formation 360 -f 109.7 -\- 



BoswoRTH Formation 



I. Massive-bedded, gray and bluish-gray arenaceous dolo- 

 mitic limestone. Several bands of steel-gray, yellowish- 

 buff-weathering bands of strata occur in the lower 



half 600 + 182.9 -f 



These limestones form the base of the high cliffs on 

 the southeast face of Mount Daly and Paget Peak. 



The lower portion of i was measured and the 

 upper parts estimated. The thickness given is prob- 

 ably at least 100 feet (30.5 m.) less than the actual 

 thickness. 



2a. Shaly and thin-bedded, gray and dove-colored, compact, 

 fine-grained dolomitic limestone weathering buff and 

 light gray. Thicker layers occur in bands from i to 

 6 feet (.3 to 1.8 m.) thick 422 128.6 



2b. Greenish siliceous shale, with thin interbedded layers of 



siliceous, compact, gray limestone 48 14.6 



2c Limestones similar to 20 51/ 157-6 



Total of 2 987 300.8 



Total of Bosworth formation 1,587 4837 



