The Dalradian Succession in the Pass of Brander District, Argyll

Abstract

Between the Cruachan Granite complex and the Glen Strae fault, to the south-east, and the Pass of Brander fault, to the south-west, there is a strip of Dalradian rocks (Fig. 1). These all lie within 1 in. Sheet 45 (Scot.) of the Geological Survey and are described in the Oban and Dalmally Memoir (Hill, 1908, pp. 19–28; Kynaston, 1908, pp. 38–40). Bailey has later distinguished the three great structural divisions into which he has divided the South-West Highlands. These are, in ascending structural succession: the Ballapel Foundation, represented south-east of the granite by Eilde Flags, Glencoe Quartzite, Leven Schists, and Ballachulish Limestone, and south-west of the same by Leven Schists; the Iltay Nappe, represented in both these positions by Islay Quartzite and Easdale Slates; and the Loch Awe Nappe, represented south of the granite by Ardrishaig Phyllites (Bailey, 1922).