﻿Vol. 66.'] LIMESTONE SOT7TH OF THE CRAVEN FAULT. 545 



Old Quarry 400 yards west of Bell Busk Viaduct. — 

 Here the beds dip south-eastwards, with some rolling, at an angle 

 varying from 15° to 20°. Hard, dark, splintery limestone occurs, 

 with very little shale. There are not many feet of beds now 

 exposed, the quarry being overgrown. Fossils seem rather rare. 



List of Fossils obtained. 



Productussemireticulatus, Mart. (With i Chonetes papilionacea (Phill.). 



spines attached.) j Pygidium of Phillipsia sp. 



Orthotetes crenistria (Phill.). (In frag- Crinoid stems and plates. 



inents.) | 



Dr. Wheelton Hind & Mr. J. A. Howe l record Spirt f era lineata, Syringopora 

 geniculate/,, and Cyaihophyllum sp., in addition to some of those enumerated 

 above. 



It is remarkable that the dip is not in accordance with the 

 general dip of the beds south of the southern branch of the Craven 

 Fault. 



The strata which have now been described are coloured pale blue 

 on the 1-inch Geological Survey map, Sheet 60, with the exception of 

 the Fogger rock. There is no doubt, however, that beds yielding the 

 fauna described — with the probable exception of the Swinden Gill 

 shales — belong to the Carboniferous Limestone ; and the colouring 

 might well be the same as that employed for the Eshton Moor 

 strata, to be described later. Dr. Wheelton Hind & Mr. J. A. Howe 

 wrote in 1901 (op. cit. pp. 357-58) : — 



' Examination of the ground and numerous small quarries seem to show 

 much more limestone than is accounted for on the map, and we are inclined to 

 believe that the Carboniferous Limestone occupies nearly the whole area.' 



It is of some importance to make out the relation of these beds 

 to the general systems of anticlines and synclines which occupy most 

 of the Craven Lowlands. Commencing at or near Stainton Cotes 

 (see 1-inch Geological Survey map, Sheet 60), and extending to 

 north of Otfcerburn, the beds occupy ' rolling country ' in which the 

 remarkable rounded hills show much uniformity of height in well- 

 defined groups and lines. The dips are fairly persistent northwards 

 or north-north-westwards. The angle of dip varies somewhat, but 

 it is usually between 15° and 30°, the average being possibly, say, 24°. 

 As the fairly steady dips continue for a distance of at least 3 miles, 

 we should have a thickness of about 15,000 feet X sin 24°, that is, 

 over 6000 feet, which is, of course, inadmissible. All the beds are 

 well up in D probably. 



There must consequently be repetition of beds by one or more 

 faults or folds ; and it is interesting to note in this connexion the 

 few dips, as at Fogger and near Bell Busk, and the remarkably 

 folded beds in Otterburn Brook, which do not accord with the 

 general direction. Also there is the considerable difference in the 

 amount of dips. The southern branch of the Craven Fault cuts off 

 these beds, with their northward dip, from the irregular anticline 

 of Eshton Moor, Hetton, and Winterburn. 



1 Quart. Journ. Geol. Soc. vol. lvii (1901) p. 358. 



