OVERLYESTG EOCKS OF ROSS AND INVERNESS. 153 



any very marked difference in the crystalline condition where they are 

 locally disturbed. The succession, as made out in these areas, would 

 indicate that rocks of the Glas-Eheinn type (greenish hornblendic 

 gneisses and pinkish felspathic gneisses) are the lowest ; that the next 

 are the greenish micaceous schists and the augen-gneisses with black 

 mica ; and that these are followed by the grey gneisses and silvery 

 mica-schists and the very quartzose varieties found towards the 

 upper end of the Attadale valley. East of the last-mentioned points 

 the beds present a more decidedly reversed dip to the JST.W., showing 

 indications of a great synclinal fold. 



8. Strome Ferry and Locli-Alsh Promontory (fig. 3). 



The rocks exposed along the east side of Loch Carron, in travelling 

 from Attadale to Strome Ferry, may be grouped for some distance 

 with those found towards the entrance of the Attadale valley. They 

 are thrown somewhat back by the fault, but otherwise retain a 

 similar strike to those further north. About midway between the 

 two points the beds appear to be repeated in one or more folds. As 



Eig. 3. — Section in Loch-Alsh Promontory. (Scale \ inch to 1 mile.) 



W. E. 



Durinish. Faults. Craig More. Ling Eiver. 



d c c 



c c. G-airloch and Ben-Fyn Series. d. Torridon Sandstone. 



we approach Strome Perry dark-green schistose rocks prevail. 

 At and immediately to the south-west of Strome Perry the rocks 

 described under Nos. 13-17 may be said to be the chief types. Augen- 

 gneisses and hornblendic schists, like those found between Jeantown 

 and Kishorn, occur for some distance to the west of Strome Perry, 

 and may be examined on the shore. The hornblendic rocks are 

 freely traversed by segregation-veins of pinkish felspar and quartz, 

 and thin lines of a dull-coloured felspar are also frequently met 

 with. These rocks have altogether an old look ; but some of the 

 thinner schistose rocks to the east do not show an equally crystal- 

 line condition, though evidently true schists. It is probable that a 

 secondary change has taken place in some of these, and that their 

 apparent want of cr3 T stallization is due to a kind of decomposition. 

 The reddish augen-gneisses are found about a mile below Strome 

 Perry, on the road to Duncraig ; but I was unable to trace them in 

 travelling westward of that point. I believe that the floor is here 

 dropped by a fault which seems to pass in a S.S.E. direction across 

 the promontory ; and this fault also tends to make the newer beds 

 dip, as it were, towards and under the older rocks (see fig. 3). 

 About this point also there are evidences of some minor faults. 



Together these faults seem to have dropped the whole of the 

 Limestone and nearly all of the Quartzite series ; and the beds which 

 are found west of this point should, I think, be grouped altogether 



