FAUNAL SUCCESSION OF THE UPPER BERNICIAN 



593 



Sketch Map 



NORTHUMBERLAND 



( North of the 

 Tyne ) 



COAI- MEASURES 

 MILLSTONE GRIT 



T^^^rz^^r^_ TUEDIAN. 



CALCAREOUS 

 GROUP 



Middle 

 Limestones' 



Lower 

 Limestones 



CARBONACEOUS CROUP 



Sll-URIAN. 



VOLCANIC. 





GRANITE. 



y >- ' 



Geological Sketch- Alap of Northumberland to show the 

 Distribution of the Bernician Limestones, 



