upper Formations of the New Red Sandstone System. 335 



mulated ; in which respect, they precisely coincide with the beds at Pyle in 

 Glamorganshire, recently described by Dr. Buckland as Keuper sandstone. 

 At this spot, the best building- material is a white sandstone, composed ot 

 rounded grains of quartz with specks of whitish decomposed felspar, havin"- 

 in some parts a delicate pink tinge. The mass cuts into blocks two feet 

 thick. 



The same sandstone, subordinate to the marls, is seen near Harvington, 

 south of Inkberrow, where it was formerly worked ; also between Ragley and 

 Alcester, and at numerous localities in the western part of Warwickshire. At 

 Oversley Lower Lodge, near Alcester, it caps a platform about one mile and 

 a half from the lias escarpment. The quarry there presents the follovvino- 

 section : 



1 . Red marl 4 Feet. 



2. Grey marl 4 



3. White sandstone with laminae and fragments of greenish marl . G — 



4. White sand with veins of gypsum. 



5. Red marl to the foot of the hill. 



A similar sandstone also caps the great AIne Hills, ranging parallel to a 

 narrow outlier of lias, which extends north-west from the main body of that 

 formation. There are here indications of an upcast of the red marl, ranging 

 from near Stratford-on-Avon towards the north-west*. On the north of 

 this line of fault near Knowle, (North boundary of the iMap, and Section, 

 fig. 4.) distant full eleven miles from the chief escarpment of lias on the 

 south, is a kind of basin of red marl, with a small outlier of lias in its centre. 

 On the east this basin is bounded by a fault which appears to strike north- 

 wards from Warwick, while its northern margin is obscured by the great pre- 

 valence of quartzose gravel in that direction. The stratum of sandstone 

 above described occurs within this area at the following points : — Mouse- 

 hill, near Tanworth ; Lapworth, Knowle, Rowington, Shrewley Common, 

 Barnmoor near Claverdon ; and Wolverton. At these localities its mineral cha- 

 racter and geological position distinguish it from the sandstone of Warwick, 

 which underlies the marls, and identify it with the sandstone of Inkberrow, 

 Ripple, and Burge-hill. One of its most distinguishing lithological charac- 

 ters, is the abundance of greenish marl, which separates the sandstone into 

 finely laminated beds, rarely fifteen inches thick and commonly much less. 

 The marl is often intersected by the thin sinuous veins of sandstone resembling 

 septaria, before alluded to, a character which, both in Warwickshire and 



* We may hereafter endeavour to show that this as well as several other lines of dislocatiou 

 terminate in the Lickey Hills. 



