Story: Geology – overview

Ignimbrite at Cathedral Cove (2nd of 2)

Ignimbrite at Cathedral Cove

This close-up of the ignimbrite at Cathedral Cove shows that it is made of angular blocks of pumice in a fine-grained matrix of rhyolitic volcanic ash. The coin gives an idea of scale.

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Private collection
Photograph by Simon Nathan

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How to cite this page:

Eileen McSaveney and Simon Nathan, 'Geology – overview - New Zealand reborn', Te Ara - the Encyclopedia of New Zealand, (accessed 13 July 2024)

Story by Eileen McSaveney and Simon Nathan, published 12 Jun 2006