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Cited by 70Geological and Geochemical AnalysisGeochemistry and Geochronology of Asian Mineral DepositsGeochemistry and Elemental Analysis

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Sulfur and chlorine budgets control the ore fertility of arc magmas

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Grondahl, Carter, Zajacz, Zoltán·2022·Nature Communications
DOI 10.1038/s41467-022-31894-0PMC PMC9304346
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Abstract

Continental arc magmas supply the ore-forming element budget of most globally important porphyry-type ore deposits. However, the processes enabling certain arc segments to preferentially generate giant porphyry deposits remain highly debated. Here we evaluate the large-scale covariation of key ore-forming constituents in this setting by studying silicate melt inclusions in volcanic rocks from a fertile-to-barren segment of the Andean Southern Volcanic Zone (33–40 °S). We show that the north-to-south, fertile-to-barren gradient is characterized by a northward increase in S and Cl concentrations and a simultaneous decrease in Cu. Consequently, we suggest that the concentration of S and Cl rather than the concentration of ore metals regulates magmatic-hydrothermal ore fertility, and that the loss of volatiles prior to arrival in the upper crust impacts ore-forming potential more than magmatic sulfide saturation-related ore metal scavenging.

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Metadata

Authors
Grondahl, C., & Zajacz, Z.
Affiliations
  • University of Toronto (CA)
  • University of Geneva (CH)
Corresponding author
Zajacz, Zoltán
ORCID
Venue
Nature Communications
Publisher
Springer Science and Business Media LLC
Published
2022-07-21
Volume
13
Issue
1
Pages
4218-4218
ISSN
2041-1723 (ISSN-L)
DOI
10.1038/s41467-022-31894-0
PMC
PMC9304346
OpenAlex
W4286494278
Cited by
70
References
87
Citations by year
2026: 25 · 2025: 20 · 2024: 20 · 2023: 4 · 2022: 1
FWCI
6.52
Type
journal article
Language
en
Open access
Licence
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Archive ouverte UNIGE (University of Geneva) (publishedVersion, other-oa)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • Archive ouverte UNIGE (University of Geneva) (submittedVersion, cc-by)
Funders
Society of Economic Geologists Foundation (n.a.)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geological and Geochemical Analysis
  • Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geochemistry and Geochronology of Asian Mineral Deposits
  • Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geochemistry and Elemental Analysis
Keywords
arc magmas, ore-forming elements, sulfur, chlorine, copper, porphyry deposits, silicate melt inclusions, volatile loss, continental arc
MeSH terms
Chlorine, Fertility, Halogens, Metals, Sulfur

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