Quart. Journ. Geo! Soc. Vol. LXIX, PL XXII. 



Map of the 

 HARTLEPOOL AREA 



Showing- the Position of the =Contour-lines 



Anhydrite and the Magnesian Limestone 



Fault 



s~ Blackhall Rocks 



f£^ff±H 



^^ 





-o- -e- -a- 

 -e- -e- -e- 



8S? 





Red Beds 



Upper Limestones 



Roestone 



Concretionary 



Fissile Upper 



Middle Limestones 



Shell Limes.tojie 



Anhydrite 



Gypsum Boulders 



Parton Rocks 



ist of Borings. 



ck. 7. Pulp-Works. 



rick Brewery. 8. Cement- Works, West Hartlepool. 



vorks, West Hartlepool. 9. Seaton Carew. 



nhydrite mass. Victoria Dock lies to the east of this, and off the 



yards across the map from Hartlepool indicates a hidden fault-line.] 



