590 



PEOCEEDINGS OF THE GEOLOGICAL SOCIETY. 



micaceous red sandstones, having 

 eroiis partings of purple, grey, 

 and red marly shale, dip south-east 

 50° to 60°, and in places near the 

 town are much undulated ; the cleav- 

 age imparts a peculiar feature and 

 structure to both marls and sand- 

 stones, and is highly inclined to the 

 north. At I^orthcombe Bridge hard 

 gritty sandstones appear to dip north, 

 or are rolled to the north and towards 

 Ashwick ; they appear in anticlinals 

 from the undulations, as at Barljnch ; 

 to the east, at Ashwick, they again 

 dip south-west 15°, are again rolled 

 before reaching Mauncy Castle, where 

 they continuously dip south, and are 

 again succeeded to the north by the 

 glossy grey Morte-Hoe slates, which 

 conformably underlie them. In the 

 deep valleys south of Ashwick Bridge 

 and under Dulverton Common the 

 features are the same, and show the 

 rolling and the final south dip at 

 East Lipscombe, where the Baggy 

 slates set in. This area was searched 

 expressly with the view of ascertain- 

 ing if there existed marked evidence 

 of either a fault or a depressed anti- 

 clinal, either of them of sufficient 

 magnitude to support the hypothesis 

 entertained by Professor Jukes, that 

 the " Lynton, Baggy, and Marwood 

 beds are on the same horizon, and 

 thus accounted for," all evidence, how- 

 ever, nevertheless being to the con- 

 trary. I failed to detect any evidence 

 to support this view. 



6. South of Dulverton. — A line 

 drawn east and west from North 

 Anstey through the south part of the 

 town of Dulverton, Hill Bridge, and 

 SkUgate, defines the conformable 

 upper junction of the '^ Upper Old 

 Red Sandstone " grits and marls, with 

 the fissile Baggy and Marwood slates 

 and sandstones, which continue south 

 to Brushford, and south of which tlie 

 carbonaceous slates &c. of Barnstaple 

 and Bideford commence, the impure 



( a 



Pi 



-North Hill. 



-Dunster. 



-Oaktrow. 



-Cutcombe. 



Elton. 



-Oatway. 

 - Oxgrove. 



Barlinch. 



-PiitonPark. 



Brushford. 



HalTcrton. 





^S^ 



? 



-Hill Bridge. ;^ 

 "Dulverton. 2 



8.4 



