﻿614 MR. E. B. BAILEY ON RECUMBENT EOLDS IN THE [Nov. I9IO, 



The Ballachulish Limestone is in the condition of a calc-silicate 

 hornfels in these northern sections ; it is impossible, therefore, to 

 say whether the grey and cream-coloured portions, distinguishable 

 in complete sections of the limestone outside the hornfels aureoles, 

 are both represented or not. 



The quartzite (8) of Stob Ban, north of the Lairigmor Valley, is 

 undoubtedly a continuation of the great quartzite fold which, on 

 the south, underlies the Ballachulish Core. It appears, however, 

 that the Stob Ban outcrop belongs to a lower lobe of this fold than 

 that which in Mam na Gualainn and Tom Meadhoin occurs almost 

 immediately beneath the Ballachulish Slide. The distinctness of 

 these two lobes is not apparent farther south than Mam na Gualainn, 

 for here their outcrops unite around the end of a fold of Leven 

 Schists marked a on the map (PL XLII • see also Sections C & D, 

 PL XLIII). 



(d) The Folded District of Kinlochleven. 



A. wonderfully complicated folded region consisting of Eilde 

 Flags (9), Glen Coe Quartzite (8), and Leven Schists (7) now falls 

 to be described. Its features are illustrated in the south-eastern 

 portions of the sections of PL XLIII. A comparison of these 

 sections with those of PL XLIV shows how the quartzite fold, of 

 the upper portion of which we obtained a glance through the 

 Windows of Etive in the south (Sections G & H), comes boldly 

 out of cover in Glen Coe (Sections E & F), and farther north 

 is continually lifting up into the air and letting us see the Leven 

 Schists beneath (Sections D to A). 



Let us consider now Sections C &D of PL XLIII. In the 

 earlier portions of this paper I have attempted to establish the 

 essential features of these two sections as far east as the outcrop 

 of Glen Coe Quartzite lying west of the Leven Schist fold, lettered 

 b in the sections and on the map (PL XLII). 1 Looking at the 

 map, it is seen that this quartzite outcrop communicates round the 

 end of the fold b with a great tongue of quartzite extending north- 

 wards through Stob Coire na h' Eirghe almost to Glen Nevis. 

 This great tongue of quartzite, bounded by the two folds of Leven 

 Schists (b) and (c), is an obvious syncline, as may be seen inGarbh 

 Bheinn (PL XLII) and less fully in Stob Coire na h' Eirghe 

 (Section C, PL XLIII, & map, PL XLII). The synclinal structure 

 of the quartzite between c and o, taken in conjunction with its 

 mapped surface-connexion with the quartzite west of 6, justifies 

 the essential features of the sections drawn as far east as the out- 

 crop of the Leven Schist fold (<?). 



The next important point to be noticed is the union of the Leven 

 Schist outcrops belonging to the folds c, d, and g in the valley 

 on the south side of Garbh Bheinn (PL XLII). Now, of these 



1 The letters b to h used in the sequel refer to definite folds of Leven 

 Schist similarly lettered in Sections A-D (PI. XLIII) and in the map 

 (PI. XLII). 



