description Orakei Basin Overview
Ōrākei Basin is a volcanic tuff ring and crater in Auckland, New Zealand, formed during the Auckland volcanic field's Pleistocene activity. Its low-lying interior contains a tidal lagoon linked to the Waitematā Harbour, although the basin is separated from the open harbour by surrounding land and engineered barriers. The site illustrates how volcanic cones in Auckland can be modified by later marine and urban processes.
help Orakei Basin FAQ
What is Ōrākei Basin?
Ōrākei Basin is a volcanic tuff ring and crater in Auckland, New Zealand. It formed during activity in the Auckland volcanic field and now contains a low-lying tidal lagoon.
How did Ōrākei Basin form?
The basin formed during a volcanic eruption that built a tuff ring around a crater. Tuff is rock made from compacted volcanic ash and fragmented material.
Is Ōrākei Basin connected to the sea?
Its interior contains a tidal lagoon linked with the Waitematā Harbour. The basin is separated from the open harbour by surrounding land and its volcanic rim.
Where is Ōrākei Basin?
Ōrākei Basin is in Auckland, New Zealand, on the Waitematā Harbour side of the city. It is part of the Auckland volcanic field, which includes many volcanic cones and craters.
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