Kōrero: Geology – overview

New Zealand region 150 million years ago

New Zealand region 150 million years ago

The rocks that underlie much of New Zealand were formed beneath the oceans between 300 and 150 million years ago. Sediments eroded from the Gondwana supercontinent were carried by rivers to the sea and deposited offshore, while volcanic activity built up oceanic islands. The diagram is a paleogeographic map – a reconstruction of the geography about 150 million years ago. By this time, the rocks that had built up offshore had been plastered onto the edge of Gondwana and uplifted, forming a mountainous region.

Te whakamahi i tēnei tūemi

GNS Science
Reference: E. McSaveney and R. Sutherland, New Zealand adrift. 2nd ed. Lower Hutt: Institute of Geological & Nuclear Sciences, 2005

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

Ngā whakaahua me ngā rauemi katoa o tēnei kōrero

Te tuhi tohutoro mō tēnei whārangi:

Eileen McSaveney and Simon Nathan, 'Geology – overview - Disturbances on the edge of Gondwana', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/map/8303/new-zealand-region-150-million-years-ago (accessed 9 April 2020)

He kōrero nā Eileen McSaveney and Simon Nathan, i tāngia i te 12 Jun 2006