MGeoscience(Hons) Keele University, UK
University Certificate and University Advanced Certificate in Astronomy University of Central Lancashire, UK
Stratigraphy, geochemistry and origin of products of complex volcanic centres, Newer Volcanics basaltic field, Victoria
Intraplate basaltic volcanism (occurring away from the edges of plates) in eastern Australia has a history stretching back at least to Jurassic times. One of the two most recent groups of occurrences is the Newer Volcanic Province (NVP) of the state of Victoria, active from 4.6 Ma to approximately 4000 BP. The NVP is thought to be composed of short-lived monogenetic centres featuring single magma batches and simple evolutions. However, recent research indicates that centres are more complex in terms of evolution, as centres such as Mt. Rouse (Boyce, in prep), Mt. Gambier (van Otterloo, in prep) and Red Rock (Piganis, unpublished) are actually polygenetic in the sense of containing multiple magma batches with complex deposits. Mt. Rouse is an excellent example of such an eruption centre. Situated in Penshurst, Victoria, it is a composite volcano of lava and scoria, rising 120 m above the surrounding lava plains. Measuring approximately 1.2 km N-S and 0.75 km E-W, the complex has at least six eruption points. Mt. Rouse’s lava flows are more than triple the size of other NVP volcanoes in terms of both area covered and volume erupted, extending 60 km to the coast at Port Fairy (Sutalo & Joyce, 2004), covering >535 km2 (Boyce et al., in prep.).
Geological Society of Australia, Victorian Division; Geoscience Society of New Zealand; IAVCEI - International Association of Volcanology and Chemistry of the Earth’s Interior; Australian Institution of Geoscientists; Mineralogical Society of Great Britain and Northern Ireland; Mineralogical Society of America; AIV - Associazione Italiana di Vulcanologia; MONVOLC.