TRIASSIC STRATA OF CUMBERLAND AND DUMFRIES. 375 



thickness of the rock, assuniing there are no faults, cannot 

 be less than looo feet. 



At Barrowmouth, as noticed by Prof. Sedgwick, the Per- 

 mian strata are thrown up by a little fault to the north. This 

 fault is traced through theEarlofLonsdale'sCroftPitatPres- 

 ton-Hows, and probably afterwards seen in Ben How Quarry. 



By the kindness of Peter Bourne, Esq., mining-engineer 

 to the Earl of Lonsdale, I am enabled to give the section of 

 the Permian and carboniferous strata met with in sinking 

 the Croft Pit, a short distance inland from Barrowmouth: — 



An Account of the Strata in Croft Pit, at Preston-Hows, 

 situated about i^ mile to the south-west of White- 

 haven. The divisions and remarks on the right-hand 

 side are my own, and were not in the original. 



Description of Strata. 



Thickness 

 of each 

 Stratum. 



No. 



1^ 



Beds of 

 Gypsum 



Conglo- 

 merate. 



White- 

 haven 

 Sand- 

 stone. 



lO. 



II. 



12. 



13- 



14. 



16. 



17' 



Soil 



Soil and clay mixed 



Black soil 



Brown soft limestone, resembling stone 



mail, in irregular strata 



Dark-coloured limestone, harder 



Yellowish limestone, mixed with spar 



Eeddish hard limestone 



Reddish hard limestone, but with finer 



particles 



Hard dark-coloured limestone 



Yellowish limestone, mixed with spar 



Soft brown limestone 



Soft brown and yellow limestone, mixed 



with freestone 



Limestone, mixed with yellow freestone . . . 



Eeddish soft freestone 



Red slate, striated with freestone in thin 



layers 



Red freestone 



Soft red slate 



Red slate, striated with red freestone in thin 



layers 



Red slate striated with freestone 



Strong red freestone, rather greyish 



Lumpy red freestone, speckled with white 



freestone 



9 

 6 



4 

 2 



I 



I 



4 



4 



2 

 2 

 I 



2 



42 



o 



m. 

 3 



9 



o 



o 

 o 

 o 

 o 



6 



4 

 o 



2 



6 

 o 

 6 



6 

 6 

 6 



25 o 

 27 o 

 29 9 



Carried forward . 



173 



SER. III. VOL. II. 



2c 



