Tweed Volcano

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Tweed Volcano was a prehistoric shield volcano in northeastern New South Wales, Australia. Tweed volcano was formed over the East Australia hotspot when it passed under this part of the continent around 23 million years ago. Mount Warning, Tweed Valley and Byron Bay are among the remnants of this volcano that was originally over 30 km in diameter and twice the height of Mount Warning today (1,156 m). Some ash and lava was deposited as far as 100 km from the vent. Now Tweed Valley forms a large erosion caldera around the volcanic plug of Mount Warning. Despite its size, Tweed Volcano was not a supervolcano.

[edit] References

• Mount Warning
• Records in the Rocks. A relatively simple account of the creation of the Tweed Volcano
• Green Mountains, Lamington National Park