An Outline of the Geology of New Caledonia; from Permian - Mesozoic Southeast Gondwanaland Active Margin to Cenozoic Obduction and Supergene Evolution

  title={An Outline of the Geology of New Caledonia; from Permian - Mesozoic Southeast Gondwanaland Active Margin to Cenozoic Obduction and Supergene Evolution},
  author={Dominique Cluzel and Pierre Maurizot and Julien Collot and Brice Sevin},
The geological evolution of New Caledonia may be divided into three phases. The Gondwanan phase (Permian-Early Cretaceous), is marked by subduction along the SE Gondwaland margin. At that time, proto-New Caledonia was located in a fore-arc region in which volcanic-arc detritus accumulated; whilst accretion and subduction of oceanic and terrigenous material formed an accretionary complex metamorphosed into the blueschist facies. During the Late Cretaceous-Eocene, marginal rifting isolated New… Expand
Permian rifting and isolation of New Caledonia: Evidence from detrital zircon geochronology
The island of New Caledonia is the second largest rock exposure of the continent Zealandia. The New Caledonian basement rocks have been interpreted as representing a late Paleozoic to MesozoicExpand
Chapter 3 Pre-Late Cretaceous basement terranes of the Gondwana active margin of New Caledonia
Abstract The basement under the Late Cretaceous unconformity in New Caledonia consists of three amalgamated terranes. They are all oceanic, arc-related and developed offshore from the easternExpand
Chapter 2 Geodynamics of the SW Pacific: a brief review and relations with New Caledonian geology
Abstract The SW Pacific region consists of a succession of ridges and basins that were created by the fragmentation of Gondwana and the evolution of subduction zones since Mesozoic times. ThisExpand
Upper Cretaceous to Palaeogene successions of the Gouaro anticline: Deepwater sedimentary records of the tectonic events that led to obduction in New Caledonia (SW Pacific)
Abstract In New Caledonia, upper Cretaceous to Palaeogene sedimentary rocks record a regional tectonic shift from Cretaceous extension to Eocene compression, which led to the obduction of oceanicExpand
Eocene pre- and syn-obduction tectonics in New Caledonia (Southwest Pacific), a case for oblique subduction, transcurrent tectonics and oroclinal bending; structural and paleomagnetic evidence
Abstract The structural analysis of the metamorphic belt and allochthonous terranes, which represent the lower and upper plates of the Eocene subduction/obduction complex of New CaledoniaExpand
Neogene terrestrial sediments: a record of the post-obduction history of New Caledonia
The poorly studied iron-rich terrestrial sediments, referred to as the Fluvio-lacustrine Formation, that crop out in the southern part of the Grande Terre of New Caledonia document the last 25 Ma ofExpand
A Reappraisal of the Poya Terrane (New Caledonia): Accreted Late Cretaceous‐Paleocene Marginal Basin Upper Crust, Passive Margin Sediments, and Early Eocene E‐MORB Sill Complex
The Poya Terrane of New Caledonia is a composite lithotectonic unit made of (i) Campanian-Paleocene enriched mid-ocean ridge basalt (E-MORB) and BABB-type (back-arc basin basalt) basalts and abyssalExpand
Evolution and sedimentation in a forebulge environment: example of the late Eocene Uitoé Limestone, New Caledonia, Southwest Pacific
New litho- and biostratigraphic data for the Uitoé Limestone on the southwest coast of New Caledonia constrain its age to the E13–E15 zone (late middle–late Eocene or late Bortonian–Runangan in theExpand
Chapter 4 Late Cretaceous to Eocene cover of New Caledonia: from rifting to convergence
Abstract In New Caledonia, the cover refers to the autochthonous Late Cretaceous to Paleogene sedimentary and volcanic formations unconformably overlying the basement rocks and underlying theExpand
Cretaceous fore-arc basalts from the Tonga arc: Geochemistry and implications for the tectonic history of the SW Pacific
The Tonga fore-arc preserves a complex history of subduction initiation, back-arc basin formation and arc volcanism which has extended from the Cretaceous to the present. In this paper, we discussExpand


Discovery of Early Cretaceous Rocks in New Caledonia: New Geochemical and U-Pb Zircon Age Constraints on the Transition from Subduction to Marginal Breakup in the Southwest Pacific
New U-Pb dating of detrital zircon and geochemical features of Permian-Mesozoic arc-derived volcanic rocks and volcaniclastic turbidites (graywackes), when compared with those of the volcanic rocksExpand
A comparative study of Late Cretaceous ophiolitic basalts from New Zealand and New Caledonia: implications for the tectonic evolution of the SW Pacific
Abstract Our understanding of the tectonic evolution of the SW Pacific between the Cretaceous and the Miocene is incomplete. During this period there were a number of ophiolitic complexes formed andExpand
Tectonic accretion and underplating of mafic terranes in the Late Eocene intraoceanic fore-arc of New Caledonia (Southwest Pacific): geodynamic implications
This paper deals with the tectonic events that result in the accretion of mafic terranes in the fore-arc region and a close juxtaposition of ultramafic rocks, low grade and high-grade mafic terranesExpand
Geochemistry and tectonic significance of basalts in the Poya Terrane, New Caledonia
The Norfolk-New Caledonia Ridge represents a continental slice which drifted away from Australia during the Late Cretaceous breakup of the eastern Gondwana margin. The presence of widespread basalticExpand
Geochemistry and age of the Nouméa Basin lavas, New Caledonia: Evidence for Cretaceous subduction beneath the eastern Gondwana margin
Abstract The Noumea Basin in New Caledonia is perhaps the best preserved sequence of in-situ Late Cretaceous marine sediments and volcanic rocks in the western Pacific region. Previous tectonicExpand
Late Oligocene post‐obduction granitoids of New Caledonia: A case for reactivated subduction and slab break‐off
In southern New Caledonia, Late Oligocene granodiorite and adamellite are intruded into an ultramafic allochthon emplaced in the Late Eocene period. Previous studies of these granitoids proposed anExpand
U–Pb zircon dating of post-obduction volcanic-arc granitoids and a granulite-facies xenolith from New Caledonia. Inference on Southwest Pacific geodynamic models
In New Caledonia, the occurrence of one of the World’s largest and best-exposed subduction/obduction complex is a key point for the understanding of the geodynamic evolution of the whole SouthwestExpand
Morphotectonic evolution of the New Caledonia ridge (Pacific Southwest) from post-obduction tectonosedimentary record
Abstract The tectonostratigraphic and geomorphic study of two post-obduction fluvial sedimentary systems on mainland New Caledonia and imaged offshore on seismic reflection lines provides a newExpand
The development of island arc-related ophiolites and sedimentary sequences in New Caledonia
The Central Chain ophiolites in New Caledonia contain layered gabbros, dolerites, and volcanics overlain by pelagic siltstones and a thick Middle Triassic to Upper Jurassic volcaniclastic sequence.Expand
Lithosphere delamination with foundering of lower crust and mantle caused permanent subsidence of New Caledonia Trough and transient uplift of Lord Howe Rise during Eocene and Oligocene initiation of Tonga‐Kermadec subduction, western Pacific
[1] We use seismic reflection and rock sample data to propose that the first-order physiography of New Caledonia Trough and Norfolk Ridge formed in Eocene and Oligocene time and was associated withExpand