GYIG OpenIR  > 矿床地球化学国家重点实验室
Geology, geochemistry and ore genesis of the Fule Pb-Zn deposit, Yunnan Province, Southwest China
Source PublicationActa Petrologica Sinica

The Fule Pb-Zn deposit is located in the western margin of the Yangtze Block, South China. This deposit structurally occurs in the Mile-Shizong-Shuicheng regional fault and is an important part of the Sichuan-Yunnan-Guizhou (SYG) Pb-Zn metallogenic province. Ore body is buried and occurs along the interlayer tectonic belt as stratiform shape. Sulfide ore is hosted by the middle Permian Yangxin Formation dolostone. Ore minerals are mainly sphalerite, minor galena and pyrite, with rare chalcopyrite and tetrahedrite, and gangue minerals are dominantly calcite and dolomite. Sulfide ore has massive, veined or disseminated structures with granular (euhedral, subhedral and anhedral) and metasomatic relict textures. There are more than 5 million tones (Mt) of sulfide ore, grading >10% Zn + Pb, and can up to 60% Zn + Pb. This paper presents the detailed ore deposit geology, and C-O, S and Pb isotopic data, aiming to reveal the sources of mineralizing elements and ore genesis. Calcite has delta C-13 values ranging from 1. 25%o to 2.01 parts per thousand, mean 1.64 parts per thousand, which are similar to those of marine carbonate rocks, but are higher than those of mantle and sedimentary organic matters. However, 818 0 values of calcite range from 17.21 parts per thousand to 17.74 parts per thousand (mean 17.49 parts per thousand), which are lower than those of carbonate rocks and organic matters, but are higher than those of mantle. Such C-O isotopic data suggests that the source of C is carbonate wall rocks, and O isotope signatures are generated by water/rock interaction between fluids and carbonate rocks. delta S-34 values of sulfide minerals range from 10.04 parts per thousand to 16.43 parts per thousand (ay. 14. 12 parts per thousand), indicating a feature of heavy S isotopes-enriched and the sources of reduced S in the hydrothermal fluids are originated mainly from evaporites within sedimentary strata by thermal-chemical sulfate reduction (TSR). Single-grain galena has (206)pb/Pb-204, (207)pb/Pb-204 and Pb-208/Pb-204 ratios ranging from 18. 530 to 18. 610 (ay. 18. 564), 15. 694 to 15. 702 (ay. 15. 697) and 38. 569 to 38. 657 (ay. 38. 601), respectively. These Pb isotopic data overlap with those of ore-formation age-corrected country sedimentary rocks and basement metaphoric rocks. Such Pb isotopic signatures demonstrate that the main sources of metal Pb are sediments and basements. This study proposes that the Fule is a carbonate-hosted, anticline and interlayer structure-controlled, stratiform, epigenetic, dispersed elements-enriched and high grade Pb-Zn deposit that formed under the background of tectonic regime shifted from extension to compression and then to extension. All those metallogenic features are probable to be related to both the Emeishan mafic magmatism and Indosinian Orogeny.

KeywordOre Deposit Geology Isotope Geochemistry Sources Of Mineralizing Elements Ore Genesis Fule Pb-zn Deposit South China
Document Type期刊论文
Affiliation1.Yunnan Nonferrous Met Geol Bur, Kunming 650051, Yunnan, Peoples R China
2.Chinese Acad Sci, Inst Geochem, Stake Key Lab Ore Deposit Geochem, Guiyang 550081, Guizhou, Peoples R China
3.Kunming Univ Sci & Technol, Fac Land Resource & Engn, Kunming 650093, Yunnan, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Yunnan Nonferrous Met Geol Bur, Geol Part 317, Qujing 655000, Peoples R China
Recommended Citation
GB/T 7714
GYIG-IR管理员. Geology, geochemistry and ore genesis of the Fule Pb-Zn deposit, Yunnan Province, Southwest China[J]. Acta Petrologica Sinica,2018,34(1):194-206.
APA GYIG-IR管理员.(2018).Geology, geochemistry and ore genesis of the Fule Pb-Zn deposit, Yunnan Province, Southwest China.Acta Petrologica Sinica,34(1),194-206.
MLA GYIG-IR管理员."Geology, geochemistry and ore genesis of the Fule Pb-Zn deposit, Yunnan Province, Southwest China".Acta Petrologica Sinica 34.1(2018):194-206.
Files in This Item:
File Name/Size DocType Version Access License
Geology, geochemistr(3175KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[GYIG-IR管理员]'s Articles
Baidu academic
Similar articles in Baidu academic
[GYIG-IR管理员]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[GYIG-IR管理员]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Geology, geochemistry and ore genesis of the Fule Pb-Zn deposit, Yunnan Province, Southwest China.pdf
Format: Adobe PDF
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.