XI. The Garriongill Section at Overtown, near Wishaw

Abstract

The object of this paper is to describe in detail a natural section in the Upper Carboniferous of the West of Scotland that has been somewhat neglected by Glasgow geologists. The Garrion Burn lies, roughly, l½ miles S.W. of Wishaw, and is easily accessible from Glasgow by train to Overtown or to Law Junction. It was mapped on the 6-inch scale by the Geological Survey of Scotland in 1869-70 (see published 6-inch sheets of H.M. Geological Survey of Scotland, Lanark, 18 N.E. and S.E.), but no account of the section has so far been published. The Garrion rises near Bentyhillocks on the S.W. edge of Auchterhead Muir, and enters the Clyde opposite Dalserf. For the first few miles it pursues a winding course among boulder-clay drumlins, and only at one point exposes a section worthy of particular remark. This is at Hyndman Bridge, where a little rock is seen the stratigraphical position of which lies about the base of the Coal. Measures. It is not, however, until the burn reaches the sharp S.W. bend just N. of Gillhead Farm that it leaves the boulder clay and enters on the long rock section described below. From this point to Garriongill Bridge, near the Clyde, there is a fairly complete section of the strata lying between the Kiltongue Coal and a horizon approximately 50 to 53 fathoms above the Ell Coal of Lanarkshire. 1. Kiltongue Goal. —This is exposed on the left bank of the burn slightly west of This 250-word extract was created in the absence of an abstract