Published online by Cambridge University Press: 01 May 2009
The Upper Carboniferous rocks of the Ingleton Coal-field in North-West Yorkshire present a difficult study, and at the present time they are very imperfectly known. As mapped by the Geological Survey, there is apparently a perfect succession, passing up from the Yoredales, through the Millstone Grits, to the Lower and Middle Coal-measures. The coal-measures are in part overlain hy a series of red rocks, which have been assigned to the Permian, as in the case of other of the Midland Coal-fields. In the index of the Survey map of the north-eastern portion of the coal-field, the Deep Coal is taken as the top of the Lower, and the bottom of the Middle Coal-measures.
page 80 note 4 Dakyns, J. E., etc., The Geology of the Country around. Ingleborough (Mem. Geol. Surv.), 1890.Google Scholar See also Davis, & Lees, , West Yorkshire (London, 1878), p. 167Google Scholar
page 81 note 1 As is well known, this coal-field is intersected by four sheets of the Geol. Surv. Maps. Sheets N.S. 49 (= 98 S.E. of O.S.) and N.S. 50 (= 97 S.W. of O.S.), however, contain the greater part of the area of Upper Carboniferous rocks.
page 81 note 2 Davis & Lees (ibid., p. 169), however, noticed the occurrence of fossil plants in the ironstone nodules of the Coal-measures.
page 81 note 3 Carb. Plant. Coll., Nos. 1114,1360–1, 1364, 1367–8, 1370–1, and 2178–2209.
page 81 note 4 Dakyns, ibid., p. 81.