BY R. J. TILLYARD. 



Width 

 in ft 



Wallarah or 

 Bulli Seam 



Conjiloiiieiate 



(Ireat North - 

 eiM 8eam 



Chert.' 



Fassifern 

 Seam 



Shale and 

 Cherts 



Shale and 

 Coal 



Soft shale 

 and cherts 



Coal & bands 



Chert 



Coal & bands 



Chert 



Coal & bands 



Chert with 



sandstone 



Coal and shale 



Shale 



Coal 



Shale and 

 sandstone 



Coal -bands 



Chert 



Coal & bands 



12 



in ft. 



100 



r. I 



25 



20 



200 



30(J 



Width 

 n ft. 



723 



I'M led ay 



oal and hands 

 Chert with shale 

 Coal and hands 



Shaly sandstone 



Sandstone 



Sandstone, shale, 

 etc. 



Coal 



Sandstone 

 Coal 



Sandstone, shale, 

 etc. 



Coal & bands "i 

 (Upper Split) 



Chert 



Coal & bands 

 Shalj' sand- 



8.>0 



stone & chert 



I i 



Coal & bands, | ^ 

 shale, cla3% 

 chert, etc. 

 (Lower Split) 



Chert & ) Belmont 

 dstone |" Insect Beds 



Conj^-lomerate 

 'leak in geological 



sequenof here 

 Clayey .sandstone 



Burwood Seam 

 (shale, claj', and 

 coal) 



Hard cherts 



Nohby's Seam 

 Newcastle Insects ) 

 Horizon ) 



Dirty Seam 



Text-fig. 1.— Section through the Upper Coal-Measures, Lake Macquarie Basin to 

 Newcastle, N.S.W., from the top (Wallarah Seam) to the Dirty Seam. Re- 

 duced and simplified from original section by Prof. T. W. E. David, F.R.S. 



