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Mortimer, Nick; Campbell, Hamish J.; Tulloch, Andy J.; King, Peter R.; Stagpoole, Vaughan M.; Wood, Ray A.; Rattenbury, Mark S.; Sutherland, Rupert; Adams, Chris J.; Collot, Julien; Seton, Maria. |
A 4.9 Mkm2 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 continent, rather than a collection of continental islands, fragments, and slices, more correctly represents the geology of this part of Earth. Zealandia provides a fresh context... |
Tipo: Text |
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Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00489/60035/63303.pdf |
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