34 



Mr. N. J. Winch on the Geology of 



Scams of Coal at Throckley Colliery. 



Ft. In. 

 Engine Seam . . at 54 fathoms . .38 thick 



Main Coal . . . 70 . . 3 



Splint Coal . . 86 . . 3 3 



Seams of Coal at Wylam Colliery. 



High Main 



Five Quarter Coal 



Six Quarter Coal 



Yard Coal 



Ilorsley Wood Seam 



6 fathoms 



21 



26 



32 



38 



7 thick 



4 t 



4 



Scams of Coal at Holywell Main, or Reins by Brunton. 



Grey Seam, or Newbiggin) 

 Stone Coal . . } 



Five Quarter Coal 

 Six Quarter Coal 



at 9 fathoms 



thick 



Section of the Strata at Montagu Main Colliery, on the North side 

 the Ninety Fathom Dyke. 



of 





Fath. Yds. Ft. In. 







Fath. Yds 



Ft. 



In. 



Soil and Clay 



1—16 



Brought over 



27 — 



— 



— 



Grey Metal stone 



3 1 



Grey Metal stone with 



fa'" 







Strong Grey post 



1 1 



girdles 





1 





Grey Metal stone with girdles4 — 16 



White post 



. 



3 — 



— 



6 



Grey post with Metalpartings6 — 2 6 



Metal stone 



. 



1 1 



2 



— 



Whin 



9 



Blue Grey metal 



. 







2 



6 



Blue Metal stone 



5 12 — 



Stone Coal ."* 



a 5 



f 







3 



*Coal (waste of the 





Black Metal stone i 



' § *.'& 



I 







2 



7 quarter Coal, or 



> 9 



Coal 



Q? o -.jf 



J 



I 



9 



Kenton Main, worked 



Black Metal stone ( 





/ 







2 



out in 1690) 





Coal 





L 



2 



1 



Blue Grey metal 



1 — 



Grey Metal stone 





— 1 



1 







Grey Metal stone 



2 — 2 — 



Strong White post 





1 1 



1 







Grey post 



1 1 























Carried forward 



37 1 





5 







Carried forward 



27 













* Kenton Main in the colliery of Kenton. 













Ft. In. 













Good Coal .... 4 6 













Ditto and band . . — 6 













Good Coal . 



... 1 2 











