■ TRIASSIC STRATA OP LANCASHIRE. 119 



ft. in. 



Soft, red, yellow, and variegated sand- 

 stones about 400 o 



Bands of sandstone, parted by red shale, 



about 30 o 



Conglomerate (calcareous) 06 



Red lumpy stale 20 



Variegated stales 5 ^ 



After tbese Lower Carboniferous strata disappear, beds 

 of millstone-grit are seen at Wildbottoms and Owlet Holes. 

 Further up the stream, near to Sir W. Hoghton^s corn- 

 mill, below Feniscowles HaU, a red sandstone, containing 

 no remains of plants, makes its appearance, and dips to the 

 S.S.E. at an angle of 12°. This stone, fi'om its appear- 

 ance, has sometimes been taken for a Permian or Triassic 

 rock rather than a carboniferous deposit ; but it unques- 

 tionably belongs to the lower coal-measurqs. On its rise 

 it is succeeded by the latter strata, dipping to the north- 

 west at an angle of 12°; and, above the bridge, small seams 

 of coal have been wrought. 



So far as my examination of the valley of the Darwen " 

 has proceeded, I have never been able to trace any Triassic 

 or Permian deposits to the east of the black carboniferous 

 shales containing Goniatites seen above Roach Bridge. 



Section from Preston to Samlesbury , opposite Alston Hall. 



Distance, 5 miles. 



s w ME 



The bed of the river Ribble, from Walton to the bridge 

 at Lower Brockholes, affords little evidence of the under- 

 lying strata. At the last-named place, however, a soft red 

 sandstone, like the Trias in the Ribble below Preston, makes 

 its appearance, dipping to the west at a small angle, and 



