THE GEOLOGICAL STRUCTURE OF THE CANONBIE COALFIELD. 



857 



Description of strata : 







Fins. 



Ft. 



Ins. 



Description of strata : 



Fms. 



Ft. 



Ins. 



Brought forward 171 



2 







Brought forward 



190 







3 



Coarse sandstone . . 2 







2 



Dark gray fakes . 







5 







Coarse sandstone 





1 



3 







White sandstone 



1 



4 



3 



Blue blaes and balls . 









5 



2 



Dark blaes . 











11 



Blue blaes and musse 













10 



Coal splint . . . . 







2 



4 



Gray fakes 









3 



6 



Fakey fireclay . . . . 











3 



Dark blaes 













5 



White sandstone 



1 







9 



Coal .... 















10 



Fakes and blaes . . . . 











10 



Dark blaes and coal . 















8 



Blue fakes . 







3 



6 



Dark blaes 











1 







Hard sandstone . 











4 



Sandstone . 







1 



3 



6 



Gray fakes . . . . . 







2 



8 



Gray fakes 











4 



6 



Fakes and blaes . 



1 



5 



4 



Blue blaes 









2 



7 



Gray fakes . . . . . 



2 







10 



Coal, soft . 













4 



Fakes and coal . 







1 



6 



Blue blaes . 









1 







White sandstone 







4 



7 



Dark fireclay 















8 



Fakes and blaes . 







4 







Gray sandstone . 







1 



2 







Parrot coal 











6 



Gray fakes 











3 



6 



Fakey blaes 







2 







Dark fakes 











1 



6 



Fakes and sandstone . 



2 



1 



2 



Dark gray fakes . 











2 







Blue blaes .... 







1 



2 



Coal . 















8 



White sandstone 



6 







2 



Coal and sulphur 















2 



Sandstone and coal strains . 







4 







Dark fakes 















2 



White sandstone 



4 



4 



9 



Gray sandstone . 











4 



10 



Blue fakes .... 







2 



6 



Fakey sandstone 











1 



5 



Fakes and blaes . 



1 



1 







Dark fakes and blaes 











3 



6 



Limestone 











3 



Dark blaes 











1 



2 



Blue blaes .... 







1 







Gray sandstone . 











5 



5 



Coarse sandstone 



. . o 



5 



8 



Gray sandstone . 











3 



6 



Lime and sandstone . 







3 



8 



Fakes and blaes . 











2 



10 



Hard gray coarse sandstone 



1 



1 



6 



Gray sandstone . 







2 



1 



1 



Dark fakes and coal . 











7 



Coal . 















4 



Soft fireclay and blaes 







2 







Fakey blaes 















8 



White sandstone 



2 











White sandstone 











4 



6 



Hard gray sandstone, limey 











9 



Fakes and sandstone 











2 







White sandstone 



1 



4 



6 



Dark blue blaes . 















10 



Fakey sandstone 



Total 







3 



4 



Carry forwan 



1 190 







3 



, 224 



5 



10 



This deep bore furnishes important evidence as to the sequence of beds below the 

 Seven Feet Seam down to the upper limestones at the top of the Marine Limestone 

 series. The Coals of the Byre Burn group (see page 858) were not met with in this 

 intervening group, and it is therefore probable, as already suggested, that the latter 

 represents, in part at least, the Millstone Grit division. 



ix. Byre Burn Coal Group (Middle Coed-measures). 



The members of this subdivision are exposed in the Byre Burn that joins the Esk, 

 on the east bank, about a mile north of Canonbie village, where they consist of 

 sandstones, shales, fireclays, and coal-seams. In 1816 a bore was sunk through this 

 group, a copy of the journal of which is subjoined. 



