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Volcanoes of Southeast Tasmania | John Seach
Tasmania, Australia
Eruptions from volcanoes in south east Tasmania produced lava flows into the valleys of the lower Derwent and coal Rivers.
Further reading
Sutherland, F.L. and Wellman, P., 1986. Potassium-argon ages of Tertiary volcanic rocks, Tasmania. In Papers and Proceedings of the Royal Society of Tasmania (Vol. 120, pp. 77-86).
Eruptions of Volcanoes of Southeast Tasmania
23-30 million years ago.