DISCOVERY OF GLACIATED BOULDERS. 



159 



TRIASSIC— Hawkesbury Series. 

 Total thickness, 2,900 fret. 



Hawkesbury Sandstone 

 Narrabeen Beds 





§"1 



e-3 



o 

 in. 



fNewcastle Coal-measures 



Dempsey Beds 



Tomago Coal-measures 



.Upper Marine Beds above 



TT ,„ . Branxton Glacial Hor- 



Upper Marine izou 



Series. Total J * Branxton Glacial Horizon 

 thickness 5000 1 Upper Marine Beds below 

 Branxton Glacial Hor- 



V i7fin 



II. PERMO- 



CARBONI- 

 FEROUS 

 SYSTEM. 

 Total thick- 

 ness about 

 13,800 feet. 



feet. 



Greta Coal-meas- 

 ures Total 

 thickness 130 

 feet. 



Lower Marine 

 Series. Total 

 thickness 

 about 4,800 

 feet. 



Greta Coal-measures 



CARBONIFEROUS 



Marine Sandstones of Ra- 



vensfield Series 

 Shales with occasionally 



Foraminifera 



Harpur's Hill Conglomer- 

 ates and tuffs— Sand- 

 stones ... 



Marine Shales 



Marine (?) Shales with er- 

 «( ratios and thin flows of 

 I Audesite and ba sic lava 

 Shales with occasional 

 ! erratics, perhaps stri- 

 ated 



Sandstones with bands of 

 conglomerates passing 

 down iuto marine rip- 

 ple-marked flaggy beds 

 L*Lochinvar Glacial Beds ... 

 Tuffs, Sandstones and Shales 

 with Ehacopteris and 

 Valamites 



Feet. 

 1,000 

 1,900 



Total 



Depth. 



1,000 



2,900 



1,200 



2,000 



700 



4,100 

 6,100 

 6,800 



3,500 



10,300 



1,500 



11,800 



130 



11,930 



1,000 



12,930 



800 



13,730 



270 

 1,000 



14,000 

 15,000 



900 



15,900 



440 



16,340 



60 

 300 



16.400 

 16,700 



1,700 



