38 



MK. L. RICHARDSON 01ST THE RH^TIC OP [Feb. I9II, 



Cotham Marble could still be seen, with its peculiar tough clay-bed 

 above. 



Glimpses of certain of the Rhaetic deposits have been obtained 

 between Lower Pedwell and the Somerton Road, and details are 

 recorded in the Geological Survey Memoir. 1 The only matter of 

 note is that ' shelly limestone similar to the Wedmore Stone ' was 

 observed in a ditch-excavation near a new house west of Ashcot. 2 



Windmill-Hill Quarry, Butleigh.— At WiudmiU Hill, 

 close to the Butleigh Monument, is an important section. It is 

 important because the sequence of beds is identical with that which 

 was only temporarily exposed in the railway-cutting at Somerton 

 to be noticed shortly ; and, while the latter is probably already 

 obscured, the former will remain open for certainly some years to 

 come, as the quarry is ' in work.' 



/42. 

 1 41. 



40. 



37. 

 36. 

 35. 

 34. 

 33. 

 32. 



31. 



30. 



29. 



28. 

 27. 



Section in Windmill-Hill Quabry, Butleigh. 



Thickness in feet inches. 



Limestone, somewhat nodular, debris of. 4 Ostrea liassica Strickland. 



Clay, greyish-green 2 



Limestone, rather flaggy 3 



Shale, brown and grey, laminated 5 



Limestone, grey and brown, fissile 4 



Shale, brown and grey 2 



Limestone, fissile, grey 4 



Shale, pale-brown 3 



Limestone, pale-brown and grey 4 



Marls, greyish-green with a whitish zone. 1 3 



Limestone, pale blue-grey, yellow exterior 8 



(Shales, with a conspicuous brown seam ") „ 



\ near the centre ) 



Limestone, dividing into two beds 9 



Shale, pale 2 



Limestone, rather massive [8] 10 



Shale, brown and grey-blue [ clay 5] 5 



C Limestones, two beds : 6 to 10 inches ) Q g Q ^ ^^ 



£ [one bed in the Somerton cutting] ... ) 



C Shale, pale-brown and blue-grej', passing ~) fi 



\ in places into limestone [7] ) 



Limestones, two beds with shale-partings 9 



C Shale, pale-brown and blue-grey, with a ") * 



\ half-inch limestone-bed [5] ) 



( Limestones, three beds with shale-part- \ , 



I ings[7] I 2 



Shale, brown [parting] 2 Lignite. 



Limestone, hard blue [6] 4 



Shale, brown 2 



Limestone, hard blue 4 



Shale ; to 2 inches 1 



Limestone, hard blue 5 



Shale, blue and brown ; 3 to 5 inches [2] 4 



^i Ue f C1 °f "h Limestone ' ma *siveblue. 1 J C Ostrea liassica. 



Shale, tough blue « ( ff «»fc«Kna-radiole8. 



S Limestones, bluish-grey, with but very / « a 



( thin partings : seen ^ 



1 ' Geology of East Somerset & the Bristol Coal-Fields ' (1876) pp. 85-86. 



2 Ibid. p. 85. 



