Story: Volcanoes

Macauley Island (2nd of 3)

Macauley Island

Macauley Island is composed mainly of black basaltic lava flows with a single, thick layer of white pumice and ash: the Sandy Bay Tephra. Radiocarbon dating of fragments of leaves and twigs from near the base of the tephra shows that it was ejected about 7,100 years ago.

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Photograph by Simon Nathan

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How to cite this page:

Richard Smith, David J. Lowe and Ian Wright, 'Volcanoes - The Kermadec Ridge: submarine volcanoes', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/en/photograph/8724/macauley-island (accessed 20 November 2019)

Story by Richard Smith, David J. Lowe and Ian Wright, published 12 Jun 2006