28 GEOLOGICAL NOTES ON KOSCIUSKO, 



111 1897 the Rev. J. Milne Curran made a detailed examination 

 of the greater part of the Kosciusko Plateau and embodied the 

 results in a paper to this Society. He concluded that evidences 

 of the former presence of moving glacier ice in the region 

 examined by him were wanting (4, 5). 



During the same year Messrs. A. E. Kitson, F.G.S., and W. 

 Thorn examined the Kosciusko Plateau, but not sufficiently far 

 north to come within reach of the principal areas, where the 

 glacial evidences now described in this paper exist (10). They 

 conclude, however, that there are evidences of glacial markings 

 at Mount Etheridge, not far from the summit of Kosciusko 

 (10, p. 369). 



During February and March of this year we examined a large 

 portion of the Kosciusko Plateau in company with Mr. F. B. 

 Guthrie, F.C.8., and on these occasions found such clear evidences 

 of ice-action as places the former existence of glacier ice at 

 Kosciusko absolutely beyond dispute. 



II. General Geological Features. 



The section (Plate vi.) accompanying this paper illustrates 

 our views as to the general geology of the region examined by 

 us. At Cooma a gneissic granite traversed by coarse veins of 

 pegmatite prevails. The folia dip in a general direction of about 

 E. 10° N. at 65°. These gneisses differ materially from the 

 gneissic granite of Kosciusko. The Cooma gneisses are very much 

 crushed and strongly foliated, and, as mentioned, are traversed by 

 veins of pegmatite, whereas the gneissic granite of the Kosciusko 

 Plateau is only slightly foliated, and is devoid of the very coarsely 

 crystalline pegmatites, although containing occasional veins of a 

 hard, fine-grained aplite. The gneisses continue from Cooma 

 towards Jindabyne for about 7 J miles, with smallflows of Tertiary 

 olivine basalt capping it at 5|- miles and 6J miles. Beyond 7J 

 miles the micaceous gneissic rocks give place to sedimentary 

 rocks, apparently part of the series of Lower Silurian radiolarian 

 rocks observed further on towards Jindabyne. At 8 J miles 



