Champagne pool, Wai-o-Tapu, New Zealand
by Neale And Judith Clark
Title
Champagne pool, Wai-o-Tapu, New Zealand
Artist
Neale And Judith Clark
Medium
Photograph - Photography
Description
The Champagne Pool - Wai-o-Tapu Thermal Wonderland near the thermal active area of Rotorua North Island New Zealand
Waiotapu, also spelt Wai-O-Tapu (Māori for "sacred waters") is an active geothermal area at the southern end of the Okataina Volcanic Centre, just north of the Reporoa caldera, in New Zealand's Taupo Volcanic Zone. It is 27 kilometres south of Rotorua. Due to dramatic geothermal conditions beneath the earth, the area has many hot springs noted for their colourful appearance.These can mostly be viewed through access by foot, and in addition to a paid and curated experience, naturally forming hot springs appear around the area. The geothermal area covers 18 square kilometres. Prior to European occupation the area was the homeland of the Ngati Whaoa tribe who descended from those on the Arawa waka (canoe).
Champagne Pool is a prominent geothermal feature within the Waiotapu geothermal area in the North Island of New Zealand. The hot spring is located about 30 km (20 mi) southeast of Rotorua and about 50 km (30 mi) northeast of Taupo. The name Champagne Pool is derived from the abundant efflux of carbon dioxide (CO2), similar to a glass of bubbling champagne. The hot spring was formed 900 years ago by a hydrothermal eruption.
The deep geothermal water below Champagne Pool is of the order of 260 °C (500 °F) but water temperature within the pool is maintained at 73 °C (163 °F) to 75 °C (167 °F) by losing heat to the atmosphere. The pH of 5.5 is relatively constant due to buffering by the flux of CO2. Gases are mainly CO2, but to less extent nitrogen (N2), methane (CH4), hydrogen (H2), hydrogen sulphide (H2S) and traces of oxygen (O2).[4] The siliceous geothermal fluid is oversaturated with metalloid compounds such as orpiment (As2S3) and stibnite (Sb2S3), which precipitate and form orange subaqueous deposits. The colourful deposits are in sharp contrast to the grey-white silica sinter surrounding Champagne Pool.
Alamy reference M9T1K3
Uploaded
January 6th, 2020
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