
GLACIAL PHENOMENA AND SUPERFICIAL DEPOSITS. 233 
5. Fragments of ironstone nodules (local).................-.. 4°60 
6. Blackish and dark-green hornblendic and felspathie rocks, 
some of which might be called diorites ............... 3°84 
MRT IEE OMEN 2h a%e oldie cash wo ona Pa nde M5 ae eM eo 1°53 
8. Soft yellowish sandstone (local).................05 seeees 1:27 
PLS Se See eee 1:02 
MMM or soe rcs Je tou iw cues <2 veces 0°77 
ERR ee lasd> aEiatny oni didks bids 0145 9d* 3 Werk we Reseed 0°51 
536. Part of the coarser quartzite of No. 1, almost exactly resembles 
that described in the enumeration of pebbles on the Souris River. (§ 514) 
Nos. 2, 7, and 9, are Laurentian; No. 6 is probably almost entirely 
Huronian. In this locality there are also a good many boulders of 
granite and gneiss of some size. A large limestone boulder, weathering 
pinkish white, but grey internally, was found to measure 10 by 6 by 24 
feet, neither the length nor thickness being fully exposed. Near here 
also, in some of the limestone erratics, specimens of a peculiar Strom- 
atopora were found in some abundance. The Quartzite drift of this 
locality, is mingled with a greater proportion of eastern and northern 
debris, than that of the country more completely sheltered by the Tertiary 
plateau, further east, but is still well characterized. 
537. North of the plateau, the increase of limestone and Laurentian 
rocks is very apparent. At a point about twenty-five miles west of 
Wood Mountain, near the junction of the Coteau deposits and northern 
slope of the plateau, an examination gave the following result :— 
Remi. Soe, «cae oes oS 4s he be Yrais dot ecu welomlt 22°33 
2. Granitic and gneissic rocks (prevalent tints reddish and 
PERG MEP TNE Sete e ree cated os ne see sat Sed ee ee Lous 29°58 
Oe Re Sc tbe le ein Becca 24°28 
4 Blackish and greyish altered rocks.............-...c0eeees 6°99 
i) ne rae otis 2h. Soa TOK cafe SDL 2 Gale 2°46 
6. Chert (from the limestone)... .... aC yk ee ae peepee, A 2°10 
7. Black hornblende rock and diorite....... eae nice Py id Yor 
538. Westward from Wood Mountain, the drift region of the Coteau 
trending northward, follows the base of the Lignite Tertiary plateau, and 
is not again seen in the vicinity of the Line. It would appear trom 
Captain Palliser’s map to run with a course about west-north-west to the 
Elbow of the South Saskatchewan, where, as already mentioned, it was 
met with by Dr. Hector. Here the edge of the Tertiary ceasing to be 
coincident with that of the third prairie steppe, appears to travel south- 
westward, while the edge of the third steppe is continued northward, by 
an escarpment which, according to Dr. Hector, is of Cretaceous rocks ; 
and appears to be closely followed by the bordering drift region of the 
Coteau as before. The Coteau deposit, would even seem to extend to the 
latitude of the Thickwood.-Hills, north of the North Saskatchewan, as Dr. 
