skip to main content
Language:
Search Limited to: Search Limited to: Resource type Show Results with: Show Results with: Search type Index

Chemical feedbacks during magma degassing control chlorine partitioning and metal extraction in volcanic arcs

Nature communications, 2021-03, Vol.12 (1), p.1774-1774, Article 1774 [Peer Reviewed Journal]

The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;The Author(s) 2021 ;ISSN: 2041-1723 ;EISSN: 2041-1723 ;DOI: 10.1038/s41467-021-21887-w ;PMID: 33741919

Full text available

Citations Cited by
  • Title:
    Chemical feedbacks during magma degassing control chlorine partitioning and metal extraction in volcanic arcs
  • Author: Tattitch, B ; Chelle-Michou, C ; Blundy, J ; Loucks, R R
  • Subjects: Arc deposition ; Ascent ; Chemical evolution ; Chlorine ; Copper ; Copper ores ; Degassing ; Deposits ; Differentiation ; Electric arc melting ; Fluid inclusions ; Lava ; Lithosphere ; Magma ; Mineral deposits ; Mineralization ; Partitioning ; Porphyry copper ; Volcanic activity ; Volcanoes
  • Is Part Of: Nature communications, 2021-03, Vol.12 (1), p.1774-1774, Article 1774
  • Description: Hydrous fluids released from subducting oceanic lithosphere fuel arc magmatism and associated hydrothermal mineralization, including formation of porphyry copper deposits. Critical magma degassing parameters are the depth, chemistry and style of fluid release during magma ascent, notably the behaviour of chlorine, a key metal-transporting ligand. Currently, understanding is limited by restricted data on fluid-melt partitioning of chlorine as a function of pressure and magma chemistry, and the complex interplay between the two that occurs in polybaric magmatic systems. Here we present experimental determinations of chlorine partitioning as a function of fluid and melt composition at pressures from 50 to 800 MPa. We provide, for the first time, a quantitative understanding of chlorine and copper evolution that is valid for shallow, deep or transcrustal differentiation and degassing. Monte Carlo simulations using our new data reproduce the chemical evolution of melt inclusions from arc volcanoes and fluid inclusions from upper crustal intrusions and porphyry copper deposits. Our results not only provide a novel chemical framework for understanding magma degassing, but quantify the primacy of magmatic chlorine concentration at the point of fluid saturation in promoting efficient copper extraction from magmas.
  • Publisher: England: Nature Publishing Group
  • Language: English
  • Identifier: ISSN: 2041-1723
    EISSN: 2041-1723
    DOI: 10.1038/s41467-021-21887-w
    PMID: 33741919
  • Source: PubMed Central
    ProQuest Central
    DOAJ Directory of Open Access Journals
Back to results list
INSPIRE LIBRARY - TON DUC THANG UNIVERSITY (84-028) 37 755 057 Feedback
19 Nguyen Huu Tho St. Dist.7, HCM thuvien@tdtu.edu.vn

Copyright © 2017 INSPIRE LIBRARY - TON DUC THANG UNIVERSITY

Searching Remote Databases, Please Wait