w 



w 



Fig. 1. The Preadriatic Gulf.* 



A. Region in which the Aqiiitanian is conformable on upper Oligocene. 



B. Region in which Aquitanian is transgressive. 



C. Region in which Langhian is transgressive on Eocene or earlier rocks. 



D. Approximate limits of Chattian Gulf (upper Oligocene). 



E. Approximate limits of the Preadriatic or lower Miocene Gulf. 



* It should be noted that the portrayed outline of the Gulf is truncated by 

 the folding of the beds, which is parallel for the most part with the struc- 

 tural axis of the Carnic Alps (W.S.W.— E.N.E.) and has produced a great 

 shortening in the North and South direction. 



