148 



DK. H. HICKS ON THE METAMOEPHIC AND 



any supposition of their being higher beds of sandstones and quartz- 

 ites reposing upon a lower quartzite-and-limestone series must be 

 entirely cast aside. These rocks will be further referred to when 

 describing the areas of Achnashellach and Strathcarron. 



Continuing the section eastward of Loch Coulan, still in some- 

 what broken ground, we come upon a series of rocks entirely unlike 

 those referred to as the Glen-Docherty series. As the road (private 

 road belonging to Lord AYolverton) leading to Achnashellach crosses 

 the ridge the mica-schists described in the Appendix, note no. 6, are 

 found. The general dip is to the W."W. ; but here t^ey are consider- 

 ably contorted, and a dip to the S.E. is soon afterwards recognized 

 for a short distance in the same rocks. In descending towards 

 Achnashellach the rocks no. 7 are met with, and apparently as 

 belonging to the same series as the above, though the evidence of 

 this is not quite certain. As we approach towards the station, 

 undoubted old rocks of the type described under no. 9, aud a reddish 

 felspathic group not unlike the old rocks of the Logan valley, appear. 

 On the roadside immediately to the west of the station, Torridon 

 Sandstone is found faulted against this old rock. 



5. Achnashellach and Strathcarron (fig. 2). 

 In the gorge of the river in the private grounds of Achnashellach 

 Lodge an excellent section of the quartzite series is exposed. 

 Towards Loch Doule the beds dip at an angle of about 45° to the 

 S.E., evidently as the effect of the main fault in the Loch-Doule 

 vaJley. A moderatelv high dip prevails also for a considerable 

 distance up the valley leading to Loch Cony Lair, and the quartzite 



Eu 



2. — Section across the Carron Valley, between Loch Doule and 

 Loch Carron. (Scale J inch to 1 mile.) 



N.N.-W 



S.S.E. 



Branch of 

 Attadale Eiver. 



c. Gairloch and Een-Eyn Series. 



d. Torridon Sandstone. 



e. Limestone Series. 



Quartz Eock. 



series is seen as if resting almost conformably upon the Torridon 

 Sandstone. The latter is passed over at the highest point between 

 Achnashellach and Loch Corry Lair, and the succession is to be clearly 

 made out in the mountains to the N. and S. of the pass. The moun- 

 tains to the west of this lake also seem wholly made up of Torridon 

 Sandstone capped with quartzite. That these are true Torridon 

 Sandstones, and not subordinate bands in the quartzite series, is 

 perfectly clear to any one who has seen the succession on the 

 Torridon shores. The thickness also is very great, evidently several 



