SECTION 1.— BACK CREEK TO BRAIDWOOD, SHOWING HORIZON OF PRE-DEVONIAN (OR PRE-CARBONIFEROUS) QUART2-FELSITE. °'-^°^ "' 



SECTION 2.— UPPER DEVONIAN ROCKS WITH PURPLE SHALES Near Rydal, N.S.W. 



Sfiri/iro diyancU, 

 tnd BhyncMttlln. Mamie Upper Devonian. 



SECTION 3. —SHOWING HORIZONS OF THE BRISBANE TUFF AND OF THE TOOWOOMBA BASALT IN THE IPSWICH COAL-MEASURES 



» TRIAS 



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