TY - JOUR T1 - Zealandia: Earth’s Hidden Continent A1 - Mortimer,Nick A1 - Campbell,Hamish J. A1 - Tulloch,Andy J. A1 - King,Peter R. A1 - Stagpoole,Vaughan M. A1 - Wood,Ray A. A1 - Rattenbury,Mark S. A1 - Sutherland,Rupert A1 - Adams,Chris J. A1 - Collot,Julien A1 - Seton,Maria AD - GNS Science, Private Bag 1930, Dunedin 9054, New Zealand AD - GNS Science, P.O. Box 30368, Lower Hutt 5040, New Zealand AD - SGEES, Victoria University of Wellington, P.O. Box 600, Wellington 6140, New Zealand AD - Service Géologique de Nouvelle Calédonie, B.P. 465, Nouméa 98845, New Caledonia AD - School of Geosciences, University of Sydney, NSW 2006, Australia UR - https://archimer.ifremer.fr/doc/00489/60035/ DO - 10.1130/GSATG321A.1 N2 - 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 in which to investigate processes of continental rifting, thinning, and breakup. Y1 - 2017/03 PB - Geological Society of America JF - GSA Today SN - 10525173 VL - 27 IS - 3 SP - 27 EP - 35 ID - 60035 ER -