198 THE BUILDING OF EASTERN AUSTRALIA 



And WooLNouGH, W. G. 



" Important Example of River Captive, in N.S.W." 

 Proc. Linn. Soc, N.S.W., 1907, Pt. 2. [36]. 

 Tennison -Woods. 



" The Desert Sandstone." 



Proc. Roy. Soc, N.S.W., Vol. XXII., p. 290. [9]. 

 Wearne, R. a. 



Paper read at A.A.A.S. Meeting, 1911. [15]. 



EXPLANATION OF TEXT FIGURES. 



Pigs. 1 to 10. Maps of Australia, showing supposed distribution of land 

 and sea during geological time and zones of heavy sedimentation, 

 after T. W. E. David. 

 Fig. 11. Ideal section from Bega, N.S.W., to Southern Queensland, 

 showing geosyncline under Southern New England up to end of Permo- 

 Carboniferous, and under Sydney and the Blue Mountains after the 

 Permo -Carboniferous ; showing also how folding in the Palaeozoic 

 Rocks gets more and more intense as we pass from the South of 

 N.S.W. to New England. 



= Silurian 



: Carboniferous 



= Triassic 



= Basalt (Tertiary) 



Acid Lavas (Tertiary). 

 Note the absence of folding in the Post Carboniferous rocks as 

 Queensland is entered. 

 I'ig. 12. Ideal section from ^It. Byron~(D' A.guilar Range) to Coast, near 



Sandgate. 

 Hg. 13. (a, h, c, d). Sketches showing how a new range is moulded on 

 old divides. 



(a) before folding ; (c) plan of same ; 



(b) after folding ; {d) plan of same. 



Fig. 14. Section showing subsidence area between N. Queensland Coast 

 and Barrier Reef. This area is now being covered with sediments, 

 and will in the next geological period become elevated into a fold range 

 being squeezed between a subsiding massive and a rising massive. 



