FN Archimer Export Format
PT J
TI Regional volcanism of northern Zealandia: post-Gondwana break-up magmatism on an extended, submerged continent
BT 
AF Mortimer, N.
   Gans, P. B.
   Meffre, S.
   Martin, C. E.
   Seton, M.
   Williams, S.
   Turnbull, R. E.
   Quilty, P. G.
   Micklethwaite, S.
   Timm, C.
   Sutherland, R.
   Bache, Francois
   Collot, Julien
   Maurizot, P.
   Rouillard, P.
   Rollet, N.
AS 1:1;2:2;3:3;4:4;5:5;6:5;7:1;8:3;9:6;10:7;11:8;12:9;13:10;14:10;15:10;16:11;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;16:;
C1 GNS Science, Dunedin, New Zealand
   Department of Earth Science, University of California, Santa Barbara, USA
   Department of Earth Sciences, University of Tasmania, Hobart, Australia
   Department of Geology, University of Otago, Dunedin, New Zealand
   School of Geosciences, University of Sydney, Australia
   School of Earth, Atmosphere and Environment, Monash University, Melbourne, Australia
   GNS Science, Lower Hutt, New Zealand
   School of Geography, Environment and Earth Sciences, Victoria University of Wellington, New Zealand
   Santos Ltd., Adelaide, Australia
   Service Geologique de Nouvelle Calédonie, Nouméa, New Caledonia
   Geoscience Australia, Canberra, Australia
C2 GNS SCIENCE, NEW ZEALAND
   UNIV CALIF SANTA BARBARA, USA
   UNIV TASMANIA, AUSTRALIA
   UNIV OTAGO, NEW ZEALAND
   UNIV SYDNEY, AUSTRALIA
   UNIV MONASH, AUSTRALIA
   GNS SCIENCE, NEW ZEALAND
   UNIV WELLINGTON VICTORIA, NEW ZEALAND
   SANTOS LTD, AUSTRALIA
   SERV GEOL NOUVELLE CALEDONIE, FRANCE
   GEOSCIENCE AUSTRALIA, AUSTRALIA
TC 0
UR https://archimer.ifremer.fr/doc/00439/55100/56594.pdf
LA English
DT Article
CR GEORSTOM III SUD
   IPOD
   MD 153 / AUSFAIR
BO Le Noroit
   Alis
   Marion Dufresne
AB Volcanism of Late Cretaceous–Miocene age is more widespread across the Zealandia continent than previously recognized. New age and geochemical information from widely spaced northern Zealandia seafloor samples can be related to three volcanotectonic regimes: (1) age-progressive, hotspot-style, low-K, alkali-basalt-dominated volcanism in the Lord Howe Seamount Chain. The northern end of the chain (c. 28 Ma) is spatially and temporally linked to the 40–28 Ma South Rennell Trough spreading centre. (2) Subalkaline, intermediate to silicic, medium-K to shoshonitic lavas of >78–42 Ma age within and near to the New Caledonia Basin. These lavas indicate that the basin and the adjacent Fairway Ridge are underlain by continental rather than oceanic crust, and are a record of Late Cretaceous–Eocene intracontinental rifting or, in some cases, speculatively subduction. (3) Spatially scattered, non-hotspot, alkali basalts of 30–18 Ma age from Loyalty Ridge, Lord Howe Rise, Aotea Basin and Reinga Basin. These lavas are part of a more extensive suite of Zealandia-wide, 97–0 Ma intraplate volcanics. Ages of northern Zealandia alkali basalts confirm that a late Cenozoic pulse of intraplate volcanism erupted across both northern and southern Zealandia. Collectively, the three groups of volcanic rocks emphasize the important role of magmatism in the geology of northern Zealandia, both during and after Gondwana break-up. There is no compelling evidence in our dataset for Late Cretaceous–Paleocene subduction beneath northern Zealandia. 
PY 2018
PD FEB
SO Geological Society, London, Special Publications
SN 0305-8719
PU Geological Society of London
VL 463
IS 1
BP 199
EP 226
DI 10.1144/SP463.9
ID 55100
ER

EF