262 DR. C. A. MATLET OK THE [Juiie I912, 



the E-haetic escarpment. At least 8 feet is here exposed, consisting 

 mainly of pale-grey arenaceous shales (with an occasional thin red 

 marly parting) and thin flaggy sandstone, one band of which 

 showed oblique lamination such as is also seen in the Alne Hills and 

 elsewhere. Near Aston Grove there is a fault with a downthrow 

 to the south-west. 



Near Aston Cantlow the sandstone sinks beneath the Alne 

 alluvium, and, reappearing west of that river, caps the escarp- 

 ment of the Alne Hills, along which it can be followed with ease 

 to Greenhill Farm and thence with more difficulty to Mars Hill 

 and a quarter of a mile beyond, where it is cut off by a fault that 

 has the usual north-westerly and south-easterly trend. The sand- 

 stone can be picked up again close to Morton Bagot Church, on the 

 opposite side of the fault, dipping south-eastwards, whence it may 

 be traced to Upper "Wawensmoor. Here it forms the nose of an 

 anticline, and bending back and dipping west-north-westwards at 

 10° to 15°, it runs through Oldberrow to the neighbourhood of 

 Ullenhall, where it may be faulted out, as I have not been able to 

 trace it farther. The beds flatten to the north-west, as is shown 

 below the alluvium of the stream that runs througli Barrells Park, 

 where 4 feet of alternating sandstones and grey marls may be seen 

 dipping at 0° to 5°. 



In the neighbourhood of Shelfield, between the Alne Hills escarp- 

 ment and the E-haetic outliers, are two inliers of sandstone, the 

 southern of which occupies a shallow valley and the northern is 

 thrown against the Upper Marls by a fault which soon dies out, as 

 it is not seen to break through the escarpment. The sandstone is 

 well exposed in some of the lanes here ; but it is slightly undulating, 

 and the boundaries of the zone are inserted on the map (PI. XVIII) 

 with some diffidence. The sandstone here contains a pebbly or 

 conglomeratic zone, somewhat like, but coarser than, that exposed 

 at Shrewley, Knowle, and near Tanworth. 



(e) Area south of Shrewley. 



Heturning once more to the type-locality at Shrewley, we will 

 now follow the zone from the eastern end of the canal tunnel, where 

 the beds are unmistakably exposed. Por a short distance the sand- 

 stone can be traced south-eastwards to an exposure, dipping at a 

 low angle to the south-east or east, on the canal side near Hatton 

 railway-station, east of which I have been unable to find it. South 

 of the canal, however, it can be seen at several places on both sides 

 of the valley occupied by the Hatton & Bearley branch of the 

 Great Western E ail way. It has been mapped with fair accuracy 

 by the officers of the Geological Survey as far as Claverdon, but is 

 exposed in the bed of a brook about three-quarters of a mile south 

 of that village ; and by sandstone fragments, etc. its course can be 

 indicated as far as Edstone, where about 8 or 10 feet of flaggy 

 sandstone is visible in an old stream-course south of Cutler's Parm. 

 This is probably the spot where Brodie observed it many years 



