X. The Sandstones of the Upper Red Barren Measures to the East of Glasgow

Abstract

Introduction. The Upper Red Barren Measures cover an area of considerable extent and of vast economic importance, occupying at the one time the heart of the mining district and the centre of the Glasgow Basin. They occur mainly as one uninterrupted mass in the Uddingston district, extending N. and S. for 8 miles and E. and W. for 6 miles. Scattered around this main mass are several small outliers, the chief one on the north side being bounded by the east-and-west fault at Shettleston, and on the south side the main outlier is bounded by the east-and-west fault at Rutherglen. They attain their maximum thickness in the Uddingston district (roughly 800 feet in the Hallside Colliery), and overlie the Productive Coal Measures without un-conformity, the position of Skipsey's Marine Band being taken as the line of demarcation. The lower half of the Barren Measures consists of sandstones, shales, and fireclays, with occasional thin seams of coal and cream-coloured limestone. The upper part, with which this paper deals, consists mainly of massive Red Sandstone. Historically they are interesting both to the geologist and to the student of the economic development of the land they occupy, for prior to 1840 they were considered to be Old Red Sandstone. The men who corrected this error have left no record of their work, so that we are in ignorance of the methods by which they arrived at their conclusions. These sandstones occupy the level plain about the Clyde, and, having This 250-word extract was created in the absence of an abstract