Signs of restlessness
Are we likely to get a repeat performance soon? Deep underground there are signs of restlessness. “We call it an active volcanic province,” Julie Boyce says, “because around the southern areas and around the central highlands we get carbon dioxide from the mantle. Surveys show that there is a little bit of a partial melt. So the mantle is very hot and there are signs that it is still active.”
On the way back to Melbourne, a short detour at Terang leads to Noorat, the birthplace of writer and humanist Alan Marshall. For volcanophiles however, Mt Noorat, just behind the small town, is the real destination. A short walk brings me to the rim of a perfect crater.
Further to the west, close to the shores of Lake Corangamite, lies the 8000-year-old Red Rock Volcanic Complex. “It erupted from 40 vents and contains not only lava and scoria, but also maar deposits,” Julie has explained to me, putting this volcano firmly on my bucket list. Red Rock has a staggering 20 of these bowl-shaped depressions and is the final highlight on the geological journey through Victoria’s volcanic field.
I remember Deb Bain’s enthusiastic statement and I agree with her: volcanoes are very cool indeed.
For photos and descriptions of all of Victoria’s major volcanoes, visit victorianvolcanoes.com
The writer travelled at his own expense.