LATE PALAEOZOIC FOLDING IN THE HUNTER RIVER DISTRICT. 



131 



was worked out separately for each of the seven sectors 

 according to the method detailed above. Particulars of 

 all the results are given below. The actual section which 

 was used in the investigation was drawn to a scale twelve 

 times that of Plate VI. 



III. Details of the Kesults. 

 (i) The Shortening of the Crust. 

 Beginning at the eastern end of the section, and number- 

 ing the section portions I to VII, the following measure- 

 ments were obtained. 



Section No. I. Miles. 



Distance traced on the base of the Bolwarra Congte. ... 10*6 

 Present horizontal length... ... ... ... ... 1O0 



Crustal shortening... ... -6 



Section No. II. 



Distance traced on the base of the Bolwarra Congte. ... 10-41 



Present horizontal length... ... ... ... ... 10 '00 



Crustal shortening... ... -41 



Section No. III. 



Distance traced on the base of the Bolwarra Congte. ... 11*3 



Present horizontal length... ... ... ... ... 10-0 



Crustal shortening... ... 1*3 



Section No. IV. 



Distance traced on the base of the Bolwarra Congte. ... 11*8 



Present horizontal length... ... ... ... ... 10*0 



Crustal shortening... ... 1-8 



Section No. V. 



Distance traced on the base of the Bolwarra Congte. ... 11*8 



Present horizontal length... ... ... ... ...10*0 



Crustal shortening... ... 1*8 



Section No. VI. 



Distance traced on the base of the Bolwarra Congte. ... 11*3 



Present horizontal length... ... ... ... ... 10-0 



Crustal shortening... ... 1*3 



