Pukaki Lagoon

Pukaki Lagoon, located in the suburb of Mangere, New Zealand,[1] is one of the volcanoes in the Auckland volcanic field.

Pukaki crater.

Pukaki Lagoon has a 600 m wide explosion crater, with a surrounding tuff ring. After an eruption about 65,000 yrs ago the crater filled with freshwater and became a lake. It was breached by the sea as sea-levels rose after the end of the last ice age about 8,000 yrs ago and became a tidal lagoon. This was dammed and drained and used as a speedway from 1929 into the 1930s (Henning's Speedway). It is now farmland.

References
  1. "Significant volcanic feature secure for public use | Scoop News". www.scoop.co.nz. Retrieved 7 December 2015.
  • City of Volcanoes: A geology of Auckland - Searle, Ernest J.; revised by Mayhill, R.D.; Longman Paul, 1981. First published 1964. ISBN 0-582-71784-1.
  • 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.


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