Story: Geology – overview

Mt Maunganui

Mt Maunganui

Mt Maunganui (Mauao), at the entrance to Tauranga Harbour, is a large lava dome formed by the upwelling of rhyolite lava about two to three million years ago. The urban area in the foreground occupies a narrow neck of dune sand – called a tombolo – that linked Mt Maunganui to the mainland several thousand years ago after sea level rose to its present height.

About this item

GNS Science
Reference: CN30758
Photograph by Lloyd Homer

Permission of GNS Science must be obtained before any use of this image.

How to cite this page:

Eileen McSaveney and Simon Nathan. 'Geology – overview - Holocene – the last 10,000 years', Te Ara - the Encyclopedia of New Zealand, updated 9-Jul-13