46 



Mr. N. J. Winch on the Geology of 



Section of the Strata at Sheriff Hill on Gateshead Fell. 



Shiver and blue slate sill 

 White flag post 

 Grindstone sill 

 White post plate 

 Blue plate . 

 Grey post plate 

 Blue plate 

 Whin plate 

 Blue sill 

 White post sill 



1 Three quarter Coal 

 White post sill 

 Grey post 

 Dun post sill 

 Blue plate . 

 Eleven fathoms Wh 



2 High Main Coal* 

 Grey post sill 

 Metal plate 



3 Metal Coal 

 White post 



4 Stone Coalt 

 Black stone sill 



5 Bandy Coal Sea 

 White post sill 

 Blue plate 

 Black plate . 



6 Little Coal Sea 

 Grey sill 



7 Yard Coal 

 White post sill 



Fs. Y. Ft. In. 

 3 



11 



-23 



— 9 



itepost 11 — 

 1 — 



1 1 



11 1 



Brought forward 



8 Bensham Seam| 

 Blue plate . 



9 Bandy Coal Seam 

 White post sill 

 Blue plate 



10 Six Quarter Coal 

 Grey Whin post . 



11 Five Quarter Coal§ 

 Grey post . 



12 Bandy Coal Seam 

 White post 



13 Low Main Coal || 

 Dark white sill 

 White post . 



14 Two Quarter Coal 

 White post sill 

 Harvey's Main Coal, or 



Wickham Stone Coal. 



Fs. Y. Ft. In. 



2 



9 



1 1 

 - 1 

 1 1 





Fathoms 134 



To the Brockwell, the lowest seam ; which 

 crops out at Basty Bank near Con set Park, 

 Durham. 



Grey metal and Metal stone 

 Brockwell Seam 



Fathoms 6 



Carried forward 88 



* This Seam does not extend to the mines on the Wear. 



f This and the Metal Coal form the Five Quarter Coal on the Wear. 



\ Maudlin Seam on the Wear. 



§ The Six quarter and Five quarter Coal Seams form the Low Main Coal on the Wear. 



II Hutton Seam on the Wear. 



Brown post 



Grey Metal stone 



Brown stone 



White post 



Blue Metal stone . 



Grey post 



Blue and grey Metal stone 



Five Quarter Coal 



Grey post 



Grey Metal stone with 



girdles 

 Main Coal . 



Brought forward 

 White and brown post 

 Grey Metal stone with Whin 



near the bottom . 

 Maudlin Seam 

 Blue post 



Blue and grey Metal stone 

 Low Main Coal . 

 Blue Metal stone . 

 White post and Whin 

 Hutton Seam 



Total 



Carried forward 43 5 6 



* Communicated to the Author by the ReT. W. Turner. 



Fs. Ft. 



In. 



d 43 5 



ri 



nV 11 — 



G 



■5 



. — 4 



G 



*] 12 1 



6 



. — 3 



3 



:\-,i 



9 



. — 4 



6 



76 4 



6 



