252 GEOLOGICAL SUEVEY OF THE TERRITORIES. 



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30. Micaceous sandstones and shales, general color gray and ^'^ellowisn, 



greenish gray at top, 40 to 50 feet. 



31. Greenish-gray micaceous sandstones, all laminated and having a few 



thin beds of limestone near the top. They extend a distance of 

 about a quarter of a mile, dij)ping at an angle of about 30° toward 

 the northeast. 



32. Hard irregular black limestone, 10 feet. 



33. Eusty-browu quartzetic sandstone. 



34. Brown crystalline limestone. 



I was unable to get the thickness of these last two beds, as they were 

 somewhat confused by the presence of the eruptive granite, which rises 

 here toward the high T)oint just south of Italian Mountain. The 

 quartzites seen on the peak evidently belong to this section, of which 

 they are probably the lower portion, for the upper layers here are really 

 the older or lower if the beds were in their proper position. There has 

 been a complete inversion. The dip on the top of the ridge is about 

 north 40° to 50° east. 



In bed No. 1 of the section Xo. 24, some distance below No. 2, in a 

 red limestone, I found a specimen of Loxonemia. It was below the con- 

 glomerates given in the upper part of the bed. It is probably Carbon- 

 iferous. In layer No. 6 1 found Produotus muricatus^ Sjnrifer, and other 

 indistinct fossils. In No. 11 there was a profusion ; among the speci- 

 mens collected. Professor Meek has identified Froductus muricatus^ N. 

 & P. ; Athyris subtilita, Hall ; Bhynclionella osagensis, Swallow ; Hemi- 

 p7'onit€S crassus, M. &. H. ; Terebratula hovidens, and Betzia punctuU/era. 

 In No. 29 I found some fragments, among which Froductus muricatus 

 was identified. 



Descending to Cement Creek we again find conglomerates and red 

 sandstones, dipping to the southwest, the angle being only a few de- 

 grees, (5° to 8°.) As we go up creek this increases gradually until the 

 beds are suddenly turned up and stand almost on end. Mr. Holmes 

 tells me that beyond this point the beds dip to the northeast. There is 

 therefore running across the creek here a line of fracture, the direction 

 of which is northwest and southeast. On the south side of this line, 

 which is probably connected with the fault in the quartzites on Italian 

 Mountain, fragments of the Cretaceous beds cap the hill. Some distance 

 down the creek, as we have already seen, the dip is toward the north- 

 east, inclining from 6° to 15°. Between the two points there must be 

 a synclinal fold, the axis of which crosses Cement Creek with a direc- 

 tion a little west of north. From Cement Creek we crossed to the head 

 of a small branch -of Cascade Creek, the east branch of East Eiver. 

 This small creek rises on the broad divide, and has cut its way through 

 the red sandstones, which are capped here with lighter-colored beds, 

 probably of Jurassic age. Below the red sandstones are thick beds of 

 red conglomerates like those seen on Cement Creek. The dip is west, 

 or perhaps, in some places, a few degrees south of west. For a short 

 distance the creek flows through a grassy valley, that gradually deepens 

 until it ends on the edge of steep bluffs, over which the creek flows to 

 join the main stream, which is about 600 feet lower down. From here 

 we have an excellent view down the river. The canon walls of Cascade 

 Creek are bright-red sandstones and conglomerates, in which, on the 

 west side near the forks of the two streams, is a broad trachytic dike. 

 {a h in Plate XV.) It is about 50 feet wide, and crosses the creek. Its 

 direction is about south 65° west. The dip of the beds seems to have 

 been but little affected by the dike. As we go down stream the dip 



