8TRATIGRAPHICAL NOTES ON THE GEORGINA 

 BASIN. WITH REFERENCE TO THE QUES- 

 TION OF ARTESIAN WATER. 



By ROBERT L. JACK, F.G.S., F.R.G.S. 



(Government Geologist of Queensland). 



[Read before the Royal Society of Queensland, July 7th, 1895. 



A NUMBER of unsuccessful bores baving been put down in the 

 north-western portion of the colony, I think it my duty to do what 

 is in my power to disseminate the latest information on a matter 

 so nearly affecting both the public and private purses. The 

 following are such particulars as I have been able to obtain 

 regarding these bores : — 



Chatsworth No. 1. (Head of Colar Creek). Drillings, 

 quartzite with granitoid rock at bottom. Depth, 3,227 feet. 



Chatsworth No. 2. Drillings, limestone, shale and quartz. 

 Depth, 900 feet. 



Marion Downs. (Georgina River, between mouths of 

 Burke and Hamilton Elvers). Drillings from 730, 825, 1,510, 

 and 1,560 feet ; all limestone. 



Glenormiston. (Between Mulligan and Georgina Rivers). 

 Limestone at surface. Drillings from 520 and 1,100 feet, lime- 

 stone and shale ; deeper drillings (depth not, stated), (1) dark, 

 hard shale, (2) compact grey limestone with shale adhering, 

 (3) dark grey sandy limestone, (4) hard quartzose rock. 

 Drillings from 1,900 feet, granite. 



