Sources and Ore-Forming Environment of the Jinchanghe Pb-Zn Polymetallic Skarn Deposit, Baoshan Block, SW China: Constraints from Cu-S Isotopic and Trace Elemental Compositions of Sulfides

Author:

Cheng Xiaolin1,Zhou Yunman2,Wang Jiyuan2,Zhao Chengfeng2,Huang Jing2,Li Pengju1,Wang Hai2,Chen Fuchuan12ORCID

Affiliation:

1. Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China

2. Yunnan Gold and Mineral Group Co. Ltd., Kunming 650224, China

Abstract

The Jinchanghe Pb-Zn polymetallic deposit is a representative distal skarn deposit in the Baoshan block. Due to limited research on the sources of ore-forming metals and trace elemental geochemistry of sulfides, the sources and mineralization environments of the Jinchanghe skarn Pb-Zn polymetallic deposit are still controversial. In this study, copper and sulfur isotopes and trace elements of sulfides from the Jinchanghe Pb-Zn polymetallic deposit were analyzed to reveal the sources of ore-forming materials and the ore-forming environments. The trace elemental analysis results show abundant Co, Ni, Mn and Se elements, and less As, Tl and Sb elements dominantly enter pyrite by isomorphic substitution, except for some Zn and Cu that occur as sulfide inclusions in Py1. Abundant Fe and Mn elements could substitute Zn to enter the sphalerite crystal lattice by the isomorphic substitution mechanism of (Fe2+ + Mn2+) ↔ 2Zn2+, and less Ag and Sb elements could enter the sphalerite by the isomorphic substitution mechanism of (Ag+ + Sb3+) ↔ 2Zn2+. The Cu-S isotopic and trace elemental compositions jointly suggest that the Jinchanghe distal skarn Pb-Zn polymetallic deposit formed from magmatic hydrothermal fluids with a sedimentary host-rock contribution, under mesothermal conditions (260 °C on sphalerite).

Publisher

MDPI AG

Reference60 articles.

1. Tethys tectonic evolution and its bearing on the distribution of important mineral deposits in the Sanjiang region, SW China;Deng;Gondwana Res.,2014

2. Gold mineralization in China: Metallogenic provinces, deposit types and tectonic framework;Deng;Gondwana Res.,2016

3. Mineralogy, fluid inclusion and stable isotope study of the Jinchanghe Zn-Pb-Fe-Cu skarn deposit in southwestern China;Deng;Miner. Deposita,2024

4. Skarn mineralogy and zoning model of the Jinchanghe copper-zinc-iron polymetallic deposit in Yunnan Province;Huang;Acta Petrol. Mineral.,2014

5. Rb-Sr isochron age of Jinchanghe Fe-Cu-Pb-Zn polymetallic deposit in Yunnan Province and its geological significance;Huang;Miner. Depos.,2014

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