New Zealand's Pink and White Terraces were considered an international marvel, formed over a thousand years by geothermally heated water containing large amounts of silicic acid and sodium chloride from two large geysers.
The White Terraces - 1884 |
The Terraces were thought to have been completely destroyed by the 1886 eruption of Mount Tarawera, until scientists found remnants of the lower tiers 60m below Lake Rotomahana last year.
Now the scientific team is back on the case, aiming to unearth more information on the geological feature and the geothermal system that created them. Scientists will first remap the lake bed at a higher resolution. Seismic equipment will be used to get a clearer picture of the geological structures under the lake floor. As well as finding out more about the lake's extensive geothermal systems, the scientists hope to get clearer images of the underwater remnants of the terraces. The lake is roughly 3km x 6km and about 120m deep at its deepest point. It enlarged to five times its original size after the Tarawera eruption.
The Terraces were NZ's most famous tourist attraction in the mid-19th century. Once they'd been sighted by missionaries and traders in the 1840s, they started attracting visitors from all over the world. NZ was still relatively inaccessible and passage took several months by ship, followed by an overland trip 150km to Lake Rotomahana. Those keen early tourists would bathe in the thermal waters, in pools at the base of the Pink Terraces.
PS: 30 March 2012 - Chunks of the Terraces fetch a high price.
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