192 PROCEEDINGS OF SECTION C. 



1.— REPORT OF ALKALINE ROCKS RESEARCH COMMITTEE. 

 By H. J. JENSEN, D.Sc, Secretary of the Committee. 



Alkaline rocks being plentifully represented in all the eastern 

 States of Australia, and research in many parts being desirable, 

 it was decided not to allocate the grant for any one single locality, 

 but to assist anyone pursuing such work. 



The regions in Queensland known to be partly of alkaline 

 rock and requiring investigation were : — 



(a) The Main Range, Ipswich district. 

 {b) Gladstone district. 



(c) Yeppon, near Rockhampton. 

 In New South Wales : — 



{a) The Barrigan Tinguaites. 



(b) Mounts N. and S. Obelisk (head of Clarence River), and 



other hills south of Mt. Wilson in the McPherson Range. 



(c) Some rocks of alkaline nature were subsequently dis- 



covered by Mr. Benson near Murwillumbah. 



Victoria and Tasmania : — 



Many localities in Victoria ; Port Cygnet in Tasmania, and 

 so on. 



In addition, it was known that alkaline and sub-alkaline rocks 

 occur in several Pacific Islands, and Professor Marshall, with his 

 students, volunteered to undertake investigations in these remote 

 regions. 



In Queensland Mr. R. A. Wearne was willing to continue his 

 work ; in Victoria Professor Skeats, Mr. Summers, B.Sc, and 

 several of Professor Skeats' students were available. 



In New South Wales and Tasmania no one was found desirous 

 of taking up this class of work. 



The Committee accordingly recommended a grant of £20 for 

 Professor P. Marshall's party, £10 for Mr. H. L. Summers, B.Sc, 

 and £10 for Mr. Wearne. 



The recipients of these grants have all done good work. The 

 results of Professor Marshall's work have already partly appeared 

 in several papers in the Transactions of the New Zealand Institute 

 (Geology of Raratonga and Aitutaki, and Geology of Mangaia.) 

 He also furnishes an abstract report appended to this. 



The result of the work of Professor Skeats' party appears in 

 an abstract report appended, and Mr. Wearne read before this 

 meeting a paper entitled " Notes on the Alkaline Eruptive 

 Rocks of West Moreton, Queensland." 



Of the £50 grant only £40 has been voted up to the present, 

 but the work of the Committee will probably continue. 



