[Pboc. Kot. Soc. Victoria, 26 (N.S.), Pt. II., 1914.] 



Art. XXIV. — On a Volcanic Aggionierate, containing glaciated 

 pebbles, at Kangaroo Gully, near Bendigo. 



By ERNEST W. SKEATS, D.Sc, A.R.C.S., F.G.S. 



( Professor of Geology and Mineralogy, Univer.sity of Melbourne.) 



(With Plate XXXII.) 

 [Bead 11th December, 1913.] 



Introduction. 



This communication is concerned witli the nature and origin of 

 A I'emarkable rock outcropping in Kangaroo Gully about four and 

 -a-half miles S.W. of Bendigo. My attention was first called to it. 

 -and some of its peculiarities described to me by one of my former 

 students, Mr. E. C. Dyason, B.Sc, B.M.E., towards the end of the 

 year 1905. In his company and that of Mr. H. S. Whitelaw, of the 

 Geological Survey of Victoria, I visited and examined the locality 

 in January, 1906. A second visit was made by Mr. Dyason and 

 myself in March, 1906. In 1907 and again in 1911 I revisited the 

 area, and completed the field observations recorded below. I have 

 delayed pul)licatioii in the hope that further field work and reflec- 

 tion might enable me to give a satisfactory explanation of the origin 

 of the occurrence. A completely satisfactory solution of all the 

 problems has not occurred to me, but as the sections exposed in the 

 gully are becoming more obscure, I now place the facts on record 

 before the opportunity for other geologists to examine the exposures 

 in the field is lost. 



Previous Literature. 



In 1873 Mr. Keginald Miinay made a sketch geological map 

 of the Sandhurst (Bendigo) district, which included the area under 

 discussion. The alluvial gold-bearing deposits of Kangaroo and 

 Opossum Gullies are indicated on all copies of the map, but the copy 

 in the geological department of the University shows no indica- 

 tion of the conglomerate or agglomerate. A lopy in the Geological 



