Quart. Journ. Geol. Soc, Vol. LX, PL XXXIX. 



N.N.W 



Generalized Section Through Pontesford Hill from N.N.W. to S.S.E. 



\ S.S.E. 



Section Along Lower Western and Southern Flank of Pontesford Hill 



t. Northern Rhyolite. 2. Red and Green ('Felsitic-Looking-') Grits. 3. Red Andesite-Tuff. a.Palarronite-Tuff, Red and Green Grits, Halleflintas and Andesite-Lava 

 5.Pink Rhyolite-Breccia. 6. Red and Green Rhyolite-Grit. 7. South-Eastern Rhyolite. 8. Intrusive Basalt and Dolerite. 



Horizontal * Vertical Scale 



o 100 ago 300 400 sooCeet 



