TILTING OF STRATA 



This (Fig. 34) is part of the chalk cliff at Sea- 

 ford, showing the strata tilted, so that the 

 deeper layers come to the surface 



Here (Fig. 35) is part of the shore of Lyme 

 Regis, showing the strata exposed by the action 



Fig. 33. — Alternate layers of hard and soft rook (" strata ") 

 forming the sea-cliff at Lyme Regis. Photographed by 

 Messrs. DoUman Bros. 



of the sea. A long series of superimposed 

 layers one on top of the other is seen. They are 

 slightly tilted, so that the deeper strata come 

 to the surface near the observer. 



kThe tilting of the strata of the earth's crust 

 I •  



