Challenger Plateau

Large submarine plateau west of New Zealand and south of the Lord Howe Rise

Topographic map of Zealandia showing the Challenger Plateau

The Challenger Plateau is a large submarine plateau west of New Zealand and south of the Lord Howe Rise. It has an approximate diameter of 500 km (310 mi) and an area of about 280,000 km² (110,000 sq mi). The water depth over the plateau varies between 500 m (1,600 ft) to 1,500 m (4,900 ft) and is covered by up to 3,500 m (11,500 ft) of sedimentary rocks of Upper Cretaceous to recent in age.^[1] The plateau originated in the Gondwanan breakup and is one of the five major submerged parts of Zealandia, a largely submerged continent.

References

^ "Challenger Plateau". Geoscience Australia. 2012. Retrieved 7 September 2013.

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Oceanic features of Zealandia

Major divisions

Western Province (North Zealandia)
Eastern Province (South Zealandia)

Plateaux, ridges, and rises

Bellona Plateau
Bounty Platform
Campbell Plateau
Challenger Plateau
Chatham Rise
Chesterfield Plateau
Colville-Lau Ridge
Dampier Ridge
Fairway Ridge
Hikurangi Plateau
Kenn Plateau
Lord Howe Rise
Loyalty Ridge
Mellish Rise
Norfolk Ridge
Northland Plateau
Puysegur Ridge
Resolution Ridge
Three Kings Ridge
West Norfolk Ridge

Troughs and trenches

Bellona Gap
Bellona Trough
Bounty Trough
Havre Trough
Hikurangi Trench
New Caledonia Trough
Puysegur Trench

Other

39°06′S 169°00′E / 39.1°S 169.0°E / -39.1; 169.0

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