ME. A. C. NICHOLSON- ON HIGH-LEVEL 



CO 



fcb 



gravels has the eroded ap- 

 pearance generally charac- 

 teristic of snch deposits. 

 There is occasionally much 

 contortion of the layers, 

 and current-bedding is 

 frequent, as shown in the 

 figure (2) facing this page, 

 reproduced from a photo- 

 graph. 



The accompanying out- 

 line-sketch of the surface 

 of the ground (fig. 3) may 

 he found interesting. 



There are numerous 

 large boulders consisting 

 of limestone, sandstone, 

 various granites and sye- 

 nites, slates, greenstones, 

 porphyritic trap, &c., the 

 boulders and larger peb- 

 bles being commonl}' stri- 

 ated and many polished. 

 The bulk of the gravel 

 consists of rounded and 

 subangular stones, the 

 larger stones being angular 

 and subangular ; they are 

 in a general way similar 

 to the boulders of the 

 Lower Boulder Clay of 

 Cheshire as described by 

 the late D. Mackintosh. ^ 

 The bulk of the stones may 

 be set down as Silurian 

 grit and argillite, then fel- 

 spathic trap rocks, green- 

 stone, granites similar to 

 those of Ennerdale (?), 

 Eskdale, and CrifFel, &c., 

 syenite, felsites. Carboni- 

 ferous Limestone, Mill- 

 stone Grit, and vein-quartz. 

 Some Coal Measure shales 

 and sandstones and Per- 

 mian and Triassic sand- 

 stones have been noticed, 

 also a few Chalk flints and 

 a trace of Liassic shale. 



These gravels may pro- 

 bably be correlated with 

 the well-known drift de- 



^ Quart. Journ. Geol. Soc. 

 vol. xx\iii. (1872) p. 388. 



