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Incredible! Hidden Continent With a New Subduction Zone Close to New Zealand

South of New Zealand in the Tasman Sea is an extension of stormy ocean where the waves often dilate 6 meters (20 feet) or more and the winds usually blow at 48 km/h (30 mph) on a very good day ....

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Hiding in plain sight: Satellite helps locate lost continent Dutch sailor had written about 375 years ago

Updated Mar 11, 2021 | 19:15 IST
So, now we must get ready to revise our knowledge about the Earth s topography. Not seven, but eight continents sit atop it, nevermind the fact that the newest discovery is 94% under the sea.
Zealandia is the submerged continent that lies next to Australia (Pic courtesy: GNS)
Key Highlights
Millions of years ago, Gondwana and Laurasia were two land masses formed out of one land mass Pangaea. The now discovered Zealandia formed about 5% of the land mass of Gondwana. Then Gondwana broke up and the fragmented land masses drifted apart with oceans between them.
The Northern hemisphere seemed to have a far larger chunk of the land mass and a Dutch sailor who navigated the oceans without all this tectonic shifts theory knowledge thought that the Southern hemisphere ought to have another continent apart from Australia. ....

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GSA Today - Zealandia: Earth's Hidden Continent

GSA Today
Zealandia: Earth’s Hidden Continent
Cover Image
2 GNS Science, P.O. Box 30368, Lower Hutt 5040, New Zealand
3 SGEES, Victoria University of Wellington, P.O. Box 600, Wellington 6140, New Zealand
4 Service Géologique de Nouvelle Calédonie, B.P. 465, Nouméa 98845, New Caledonia
5 School of Geosciences, University of Sydney, NSW 2006, Australia
Abstract
A 4.9 Mkm
2 region of the southwest Pacific Ocean is made up of continental crust. The region has elevated bathymetry relative to surrounding oceanic crust, diverse and silica-rich rocks, and relatively thick and low-velocity crustal structure. Its isolation from Australia and large area support its definition as a continent Zealandia. Zealandia was formerly part of Gondwana. Today it is 94% submerged, mainly as a result of widespread Late Cretaceous crustal thinning preceding supercontinent breakup and consequent isostatic balance. The identification of Zealandia as a geological cont ....

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