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Onepoto (volcanic crater)

From Wikipedia, the free encyclopedia

Two postcards from around 1910, showing Onepoto domain before it was reclaimed.

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.[1] 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.[2]

Some parts of the tuff ring were quarried away in the 1950s to provide fill for the Northern Motorway.[1] In 1975, the crater was reclaimed to create sports fields.[3] The modern Onepoto Domain features a variety of sports fields, ponds, playgrounds and walks.[1][4]

See also

References

  1. ^ a b c Onepoto and Tank Farm - City of Fire, insert magazine in The New Zealand Herald, Friday 15 February 2008.
  2. ^ Cameron, Ewen; Hayward, Bruce; Murdoch, Graeme (2008). A Field Guide to Auckland: Exploring the Region's Natural and Historical Heritage (rev. ed.). Random House New Zealand. p. 143. ISBN 978-1-86962-1513.
  3. ^ Janssen, Peter (January 2021). Greater Auckland Walks. New Holland Publishers. p. 48-49. ISBN 978-1-86966-516-6. Wikidata Q118136068.
  4. ^ Community Facilities Trust Birkenhead/Northcote (2006). Harbourside Explorer: A Guide to Exploring What's In and Around Birkenhead and Northcote (2nd ed.). North Shore City. pp. 16–19.

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

36°48′29″S 174°45′03″E / 36.80818°S 174.75085°E / -36.80818; 174.75085


This page was last edited on 12 April 2024, at 07:08
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