Onepoto (volcanic crater)
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{{Use dmy dates|date=July 2019}}
Image:Onepoto crater Auckland postcard.jpg
Onepoto is the name of a volcanic explosion crater (or maar) on the North Shore in Auckland, New Zealand. It is a part of the Auckland volcanic field. It should not be confused with Onepoto Hill, which is a volcanic feature of the South Auckland volcanic field.
History
Located near the approaches to the Auckland Harbour Bridge, it was created by a series of eruptions approximately 185,000 years ago.Onepoto and Tank Farm - City of Fire, insert magazine in The New Zealand Herald, Friday 15 February 2008. Onepoto and neighbouring Tank Farm were fresh water lakes when sea levels were lower using the Last Glacial Maximum. As sea levels rose, the waters of the Waitematā Harbour breached the tuff rings of the craters, becoming tidal lagoons.{{cite book |last1=Cameron |first1=Ewen |last2=Hayward |first2= Bruce |author-link2=Bruce Hayward |last3=Murdoch |first3= Graeme |title=A Field Guide to Auckland: Exploring the Region's Natural and Historical Heritage |isbn=978-1-86962-1513 |publisher=Random House New Zealand |year=2008 |edition=rev. |page=143}}
Some parts of the tuff ring were quarried away in the 1950s to provide fill for the Northern Motorway. In 1975, the crater was reclaimed to create sports fields.{{cite Q|Q118136068|page=48-49}} The modern Onepoto Domain features a variety of sports fields, ponds, playgrounds and walks.{{cite book|title=Harbourside Explorer: A Guide to Exploring What's In and Around Birkenhead and Northcote |edition=2nd |date=2006 |author=Community Facilities Trust Birkenhead/Northcote |publisher=North Shore City |pages=16–19}}
See also
- Onepoto Bridge, a bridge offering views of the area
- Tank Farm, a neighbouring crater
References
{{Reflist}}
Further reading
- Volcanoes of Auckland: The Essential guide - Hayward, B.W., Murdoch, G., Maitland, G.; Auckland University Press, 2011.
- Volcanoes of Auckland: A Field Guide. Hayward, B.W.; Auckland University Press, 2019, 335 pp. {{ISBN|0-582-71784-1}}.
External links
- [https://kura.aucklandlibraries.govt.nz/digital/collection/photos/search/searchterm/Onepoto/field/title/ Photographs of Onepoto] held in Auckland Libraries' heritage collections.
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{{Auckland volcanic field}}
{{Northcote, Auckland}}
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Category:Auckland volcanic field
Category:Kaipātiki Local Board Area
Category:Volcanoes of the Auckland Region
Category:Former lakes of the Auckland Region
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