Mount Wellington (New Zealand)
| Mount Wellington | ||
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 Mount Wellington |
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| height | 135 m | |
| location | Auckland , North Island , New Zealand | |
| Mountains | Auckland Volcanic Field | |
| Coordinates | 36 ° 53 '31 " S , 174 ° 50' 48" E | |
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| Type | Cinder cone | |
| rock | Slag, lava , tuff | |
| Last eruption | about 9000 years ago | |
| Normal way | Hike | |
Mount Wellington ( Māori : Maungarei ) is a volcano in the Auckland Volcanic Field in the suburb of the same name in the city of Auckland on the North Island of New Zealand . It is located about 10 kilometers southeast of the city center.
The 135 m high volcano is the youngest volcano in the Auckland field on the mainland and the second youngest in the Auckland field. It is the largest of the cinder cones in Auckland by volume, but lower than Mount Eden .
Its phase of activity was about 9,000 years ago. Since the volcanoes of the Auckland field tend not to erupt again after the end of a one-off activity, it is assumed that Mt. Wellington is also probably extinct.
The mountain consists of a base of tuff from previous eruptions that has been covered by slag and lava . The main cone was formed by three main vents, further vents produced lava flows that extend almost 6 km towards Manukau Harbor .
The volcano emitted 160 million cubic meters of lava and 9.2 million cubic meters of ash and tuff.
The mountain was named by early settlers after Arthur Wellesley, 1st Duke of Wellington . The Māori used the mountain for a pā (fortified village) for several centuries . They called him Maunga-a-Reipae ("watchful mountain" or "mountain of the Reipae", an ancestor of the Tainui ).
use
A large part of the lava flows around the mountain was extracted for the production of industrial granules. The Lunn Ave quarry, northwest of the summit, was the largest crushed stone quarry, providing nearly 7% of New Zealand's road construction aggregates in 1988 . The quarry was closed and is being developed for residential development.
Leachate from the volcano is collected in Penrose, 5 km away, as process water for industrial purposes.
See also
literature
- Volcanoes of Auckland: The Essential Guide - Hayward, BW, Murdoch, G., Maitland, G .; Auckland University Press, 2011.
Web links
- Auckland Volcanic Field Geology . GNS Science, January 25, 2010,accessed February 7, 2016.