Reviews — Geologiad Snrvei/ of Canuibf. l;"*)? 



latitude from 52° 36' to 53° 45' N. and in longitude from 113° L»0' 

 to 119° 35' W. There are also views of the mountainous scenery 

 characteristic of parts of the Athabasca and Fraser Rivers. 



The writer enumerates the various expeditions that have penetrated 

 this region, including those of the Hector-Palliser expedition (1859), 

 and the better known journey of Lord Milton and Dr. Cheadle 

 (1863, "The North- West Passage by Laud"), as well as the later 

 one undertaken by Dr. A. R. C. Selwyn in 1871. 



The formations met with in tlie district explored were as follows : — 



Tertiary ... Paskapoo Beds. ) ^ 



t?A i Tt A \ Laramie. 

 ^ , I Edmonton ceds. \ 



Cretaceous ... | pi^rre and Fox Hill. 



Devono-Carboniferous. 



ri ■> ' S Castle Mountain Group. 



Cambrian ... t> -d- cj • 



( Bow Kiver Series. 



ArchtBan ,.. Shuswap Series. 



The Upper Laramie (Paskapoo Beds) were identified on the west 

 bank of the Pembina Eiver, and consisted of about 50 feet or more 

 of thick beds of yellowish-grey sandstones. The Lower Laramie, 

 as distinguished % its fossils, was met with on Sandstone Creek, 

 a small tributary of the Athabasca River, where a section showed 

 that the rocks consisted of clayey sandstones, associated with coarser 

 sandstones, carbonaceous shales, and seams of coal. 



Cretaceous rocks were represented by rather coarse green sand- 

 stone, interbedded near the mountains with greenish conglomerate, 

 with (further eastward) black argillaceous shale, including thin 

 seams of lignite. These rocks were seen in ascending Prairie 

 Creek, a tributary of the Athabasca, the mouth of which is about 

 ten miles from that of Sandstone Creek. 



Owing apparently to the imperfect evidence afforded by the 

 fossils the succeeding group of rocks bears the dual title Bevono- 

 Carhoniferous. These were seen in three sections : — (1) 2,160 feet 

 thick in Folding Mountain, the first foot-hill of the Rockies, where 

 limestones, siliceous shales, and quartzites are brought up in 

 a " sharply folded, slightly overturned anticline." (2) In_ Roche 

 Miette, described as a notable landmark in view at a great distance, 

 standing on the east side of the Athabasca River, a few miles below 

 Jasper Lake. Here, in a section 3,300 feet in thickness, limestones 

 and shales occur, the former holding the few and seemingly not 

 very characteristic fossils which served to indicate the horizon of 

 the' beds, viz. Devonian. The following were the fossils obtained: 

 Atrijpa reticularis; Diphyphijllum, sp. ; Cyrtina, sp. ; Spirifer (or 

 Spirifei-ina), sp. ; cast of elongated spiral Gasteropod. (3) Carboni- 

 ferous rocks were met with near Henry House on the Atliabasca 

 River, some 15 miles south of Jasper Lake. Here, again, the 

 evidence upon which the age of the rocks is based is somewhat 

 scanty, judging by the few fossils enumerated, as follows : Eeticnlana 

 setigera? ; Productus (very finely ribbed) ; Spirifer, sp. ; Dielasma 

 (cf. D. formosa, Hall). These were obtained in an exposure ot 



