(A 



u. Clay 



o 



Yol. 67.] WEST, MID, AND EAST S0MEKSET. 55 



Section in the Quarry near Ashton. 



Thickness in feet inches. 



Limestone : fragments in soils, but normally 8 

 'Broad Shale'; hard yellow and blue-grey 



paper-shales 2 



'Corn Size': fine-textured, blue-centred 

 limestone. Will not stand the frost; 



11 to 14 inches 11 Ostrea liassica Strickl. 



Si S.Clay 1 Ostrea liassica. 



T . , , , , , a o -n (One bed at Stoughton- 



Lunestone, grey, blue-hearted 2 j Crosg Quarry> where it 



6. Clay . .■••■• ;;";' ( 'mi""B,"*'i n q C contains corals and is 5 



2. Limestone: locally called 'The Flat 3 J inches thick.) 



11. Clay 0| 



'Jew Stone'; hard, compact, yielding a 



conchoidal fracture 7 



Clay -parting 0% 



Limestone, compact, blue inside, locally called 



'The Skud': 4 to 6 inches 6 



Clay -parting 0| 



CProtocardia, Ostrea (15 



Limestone : locally called 'TheClog' 9 < inches thick at Stoughton 



(. Cross). 



West Stoughton, with the other beds as exposed at the preceding 

 quarry below that stratum. In the quarry at Stoughton Cross the 

 beds are somewhat disturbed ; but the sequence is the same as at 

 Ashton, with the modifications noted in parentheses in the record of 

 that section. 



(F) The Uphill-Shepton-Mallet Area. 



This area embraces those numerous disconnected patches of 

 Rhaetic deposits, which are either in actual contact with the 

 Palaeozoic rocks of the Mendip Hills, or occur in outliers removed 

 at a greater or less distance therefrom. 



In proximity to a mass of older rocks, which — on abundant 

 evidence — formed a land-surface during the time of formation of the 

 newer rocks, it is not to be wondered at that the Rhaetic deposits 

 are subject to considerable variation in thickness and character. 

 Some of them are conglomeratic ; while sediments of this epoch, 

 along with vertebrate-remains, have found their way into fissures 

 in the Carboniferous Limestone, or repose in shallow hollows upon 

 its much eroded surface. Sometimes, however, where an ' abnormal' 

 development of a Neozoic rock might be expected, there is a 

 * normal' development instead. 



The first section to be noticed is near Uphill, not far from 

 Weston-super-Mare, where the Rhsetic Beds are exposed in the 

 great cutting which here traverses the Mendip Hills. 



Railway- cutting, Uphill. — This section has been men- 

 tioned by several authors. Thomas Wright, Charles Moore, and 

 Bristow & Etheridge, all of them contributed original observations. 

 Mr. H. B. Woodward has given a picture of part of the cutting, 

 showing how highly faulted the beds are : and this feature is still 



