This post will cover remaining volcanic activity in southern Australia. The majority of it is in the southeastern state of Victoria. The most recent activity has spilled over the border to the west into South Australia. Finally, we will take a look at volcanic activity in the Bass Strait, the water separating Tasmania from the rest of the continent and a quick look at volcanic activity in Tasmania.
The now beautiful Holzmaar erupted 25 000 years ago. Sediment drill cores from here are used in comparative studies in both the Greenland Ice Sheet and Ice Core projects. (Photo: geopark-vulkaneifel.de)
A maar is a hole in the ground, of volcanic origin… what else?… caused by interaction with water… That was about all I knew about maars when I prepared for this year’s holiday, in the German Eifel maars area (Vulkaneifel, Rheinland-Pfalz district). I did not expect to find a great lot of evidence for former volcanic activity. Probably all covered by sediments or eroded, mined away or grown over – that’s what I thought. Mind you, it was not the famous Laacher See caldera I visited which had produced a VEI 6 eruption some 13 000 years ago. Continue Reading