AT GLEASTON, IxX LOW FURNESS. 91 



From north to south they may probably extend about forty 

 yards, but certainly for more than half of that distance, to- 

 wards the beck, they are not now seen until the land rises 

 on the bluff south of the beck, where they reappear as a 

 reddish and bedded trap ash, having an east and west direc- 

 tion, and dipping N.N.W. at an angle of about 60°. This 

 ash is succeeded by a coarse breccia of a few yards in 

 thickness, so far as exposed, which dips slightly north of 

 west, at an angle of 25°, and then is covered up by grass 

 so as not to be seen ; but no doubt, from sections in the 

 adjoining lane and borings made on the rise of the strata, 

 dark-coloured shales occur again ; and the dyke most pro- 

 bably intrudes through these shales, which are in every 

 respect like limestone shales; but no organic remains 

 were observed in them, so as to make us certain of their 

 geological age. 



Returning to the north side of the beck, nothing is ex- 

 posed of the district west of the hard rocks seen on the 

 Green, owing to the thick covering of drift in that direc- 

 tion ; but Mr. Hodgson has proved, by a series of bore- 

 holes, the occurrence of upper Permian sandstone, red 

 shale, and limestone shale — the first to the S.W., the 

 second to the west, and the third to the N.W. of Glea- 

 ston; and Mr. Ashburner has proved the occurrence of 

 limestone shale and limestone in bores to the E. and N.E. 

 of the locality where the rock is found. 



In the bluff on the south side of the stream, as previously 

 stated, the rock appears more like a trap ash of a red- 

 dish-brown colour, and exhibits traces of bedding and white 

 lines like carbonate of lime. Immediately adjoining the 

 trap ash, and on its rise, occurs the coarse breccia, composed 

 of fine-grained siliceous rocks, cemented together with 

 quartz, and like a Permian breccia ; but although the beds 

 are near together, there was not evidence to show whether 

 the trap ash gradually passed into the breccia or intruded 



