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Lake Taupō (also spelled Taupo; Māori: Taupō-nui-a-Tia or Taupōmoana) is a large crater lake in New Zealand's North Island, located in the caldera of Taupō Volcano. The lake is the namesake of the town of Taupō , which sits on a bay in the lake's northeastern shore.
The eruption further expanded the lake, which had formed after the much larger Oruanui eruption. Its new deposits also briefly created another large lake to the Taupō Volcano's north that extended to the Reporoa Caldera which in due course broke out into the Waikato River valley and released over a short period 2.5 km 3 (0.60 cu mi) of water.
[3]: 230–232 Comparison of large events in the Taupō volcanic zone over the last 1.6 million years at 3.8 km 3 (0.91 cu mi) per thousand years with Yellowstone Caldera's 2.1 million year productivity at 3.0 km 3 (0.72 cu mi) per thousand years favours Taupo.
At the time of the eruption, the sea level was much lower than at present, and for over 100,000 years the Taupō Volcano had been mainly under Lake Huka, a larger lake than the present Lake Taupō. [1]: 6 Lake Huka was destroyed in the eruption, and other features of the local geography were changed significantly as outlined below.
Lake Taupō, the largest lake in the North Island, is a volcanic caldera, responsible for rhyolitic eruptions about once every 1,000 years. [20] The largest eruption in the last 65,000 years was the cataclysmic Oruanui Eruption 26,500 years ago, producing 530 cubic kilometres of magma. The most recent eruption, around 233 AD was also a major ...
A temporary lake above this blockage was formed over perhaps 2 to 3 years in the older Reporoa Caldera, maximising to an area of about 90 km 2 (35 sq mi) and a volume of about 2.5 km 3 (0.60 cu mi). [ 11 ] : 109 This broke through the ignimbrite dam in a massive flood with peak flow believed to be 17,000 m 3 /s, over 100 times the current river ...
For lake stars to form, it is believed that a thin layer of ice needs to be present with heavy snowfall on top. They begin with a single hole, and then spidery branches extend from there, creating ...
New Zealand's flora is still recovering from the last glacial maximum. About 2 Ma, extension and subduction under the North Island formed the Taupo Volcanic Zone, leading to the central North Island being covered in cobalt deficient soils which restrict forest development. One of the largest eruptions being the Lake Taupo eruption of 186 AD. [44]