The Tertiary Volcanic Rocks of Central Victoria

Publisher Website
Google Scholar
Abstract
The Tertiary era in Victoria was marked by two extensive periods of intermittent vulcanicity; one ranging from the Oligocene to the Middle Miocene (Older Volcanic Series), the other from the Pliocene to the Recent (Newer Volcanic Series). The Older Volcanic Series, now greatly eroded, occurs mostly south and east of Melbourne. The Newer Volcanic Series, which has suffered much less erosion, extends north-west and west from Melbourne as a broad plain of about 10,000 square miles in area, and forms the floor of the Great Valley of Victoria. This paper is concerned with lavas of the Newer Volcanic Series lying between longitudes 144° E. and 145° E. (Fig. 1). The Geological Survey of Victoria generously provided facilities for cutting 500 thin sections, and lent to me another 500 slides on my departure for England, besides putting at my disposal maps, literature, and unpublished analyses. Mr. D. E. Thomas, of the Survey, in conjunction with whom the detailed field work was done, generously withdrew from the work. Fifty chemical analyses were prepared in the Geochemistry Department, Imperial College of Science and Technology, London, under Dr. H. F. Harwood. Much helpful criticism was received from Professors Boswell and Brammall, and my thanks are due to Dr. G. W. Tyrrell of Glasgow and Dr. E. S. Hills of Melbourne for reading the manuscript, and to Professor Brammall for seeing the paper through the press. P revious L iterature A bibliography of references to Victorian basalts is provided in Professor Skeats's Presidential Address, on the volcanic

This publication has 12 references indexed in Scilit: