Kōrero: Sea floor geology

Underwater landslide

Underwater landslide

Looking like a landslide on any over-grazed hill, this submarine slide off East Cape is tens of thousands of times bigger. The slide occurred on a slope about the same height as Mt Cook. Blocks, some larger than Mt Ruapehu (18 kilometres wide), travelled nearly 50 kilometres out across a completely flat abyssal floor. Fortunately, it probably happened more than 155,000 years ago. It is thought that the slope may have been destabilised by a volcanic seamount on the Pacific Plate carried along towards and under the Australian Plate.

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Te Ara - The Encyclopedia of New Zealand

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Source: NIWA – National Institute of Water and Atmospheric Research

Ngā whakaahua me ngā rauemi katoa o tēnei kōrero

Te tuhi tohutoro mō tēnei whārangi:

Keith Lewis, Scott D. Nodder and Lionel Carter, 'Sea floor geology - Continental slopes, canyons and landslides', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/map/5606/underwater-landslide (accessed 27 January 2020)

He kōrero nā Keith Lewis, Scott D. Nodder and Lionel Carter, i tāngia i te 12 Jun 2006