File:The Quarterly journal of the Geological Society of London (13204607575).jpg

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