Skip to Main content Skip to Navigation
Conference papers

3D modelling of Supergene Alteration of the Koniambo Massif, New Caledonian Peridotite Nappe

Christian Le Carlier de Veslud 1 Benoît Quesnel 1 Pierre Gautier 1 Philippe Boulvais 1 Michel Cathelineau 2 Maxime Drouillet
1 GR - Géosciences Rennes
2 GeoRessources
Abstract : Resulting from the weathering of the Peridotite Nappe, laterites are abundant in New Caledonia and host one of the largest nickel ore deposit worldwide. Based on an exceptional drilling dataset provided by the Koniambo Nickel SAS company, this work presents a preliminary 3D modelling. It shows that the laterites are located along the ridges of the massif and are organized as a set of sinkhole-like patches. Between these patches, areas with thin or no limonite cover are characterized by higher averaged Ni-contents. Therefore, lateritization and Ni mineralisation should not be considered as resulting from a strictly vertical progression of the alteration front, but must involve more complex processes, such as lateral transfers or tectonic control.
Document type :
Conference papers
Complete list of metadata
https://hal-insu.archives-ouvertes.fr/insu-01184850
Contributor : Isabelle Dubigeon <>
Submitted on : Tuesday, August 18, 2015 - 9:15:26 AM
Last modification on : Thursday, January 14, 2021 - 11:47:02 AM

Identifiers

  • HAL Id : insu-01184850, version 1

Collections

INSU | CNRS | UNIV-RENNES1 | GR | OSUR | GR-PPDB | GR-3T | UNIV-LORRAINE | UNIV-RENNES | OTELO-UL | GEORESSOURCES-UL

Citation

Christian Le Carlier de Veslud, Benoît Quesnel, Pierre Gautier, Philippe Boulvais, Michel Cathelineau, et al.. 3D modelling of Supergene Alteration of the Koniambo Massif, New Caledonian Peridotite Nappe. SGA2015: 13th Biennial meeting, Aug 2015, Nancy, France. pp.1173-1176. ⟨insu-01184850⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

168