南秦岭郧西-旬阳地区铅锌矿床成因：原位U-Pb定年、S-Pb同位素和闪锌矿微量元素的制约

doi:10.3799/dqkx.2026.109

南秦岭郧西-旬阳地区铅锌矿床成因：原位U-Pb定年、S-Pb同位素和闪锌矿微量元素的制约

doi: 10.3799/dqkx.2026.109

廖旺^1,2,
杨良哲^1,2, ,,
赵璧^1,2,
李姜丽^1,2,
李乐^1,2,
刘述德^1,2

1. 湖北省地质科学研究院, 湖北武汉, 430034;
2. 资源与生态环境地质湖北省重点实验室, 湖北武汉, 430034

基金项目:

湖北地质科技专项：湖北郧西西部古生代铅锌多金属矿找矿潜力研究（KJ2025-2）

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作者简介:
廖旺（1994-），男，博士，工程师，主要从事成矿理论与找矿勘查研究，ORCID：0009-0001-1204-396X，E-mail:liao-wang@cug.edu.cn

通讯作者:
杨良哲（1981-），男，高级工程师，主要从事成矿理论与找矿勘查研究，ORCID：0009-0003-5790-5396，E-mail:Yangliangzhe@126.com

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出版历程
- 收稿日期: 2025-11-17
- 网络出版日期: 2026-05-13

The origin of Pb-Zn deposits in Yunxi-Xunyang district, South Qinling: Constrains from in situ U-Pb dating, S-Pb isotopes and sphalerite trace elements

摘要

摘要: 为研究南秦岭震旦系-下古生界沉积地层中铅锌矿床的成因。本文对不同赋矿地层中的锡洞沟、银洞凹和关子沟矿床开展了矿床地质特征、碳酸盐U-Pb定年、闪锌矿微量元素和硫化物S-Pb同位素分析。本次研究获得银洞凹矿床与闪锌矿共生热液碳酸盐U-Pb年龄为456±24Ma，与扬子北缘MVT矿床的成矿时代相近。锡洞沟矿床闪锌矿含有较高的Ga和Cd，银洞凹矿床闪锌矿含有较高的Ge和Cd，闪锌矿微量元素温度计指示两个矿床分别形成于约218℃和137℃，而关子沟矿床闪锌矿含有较高的Fe和Co，闪锌矿微量元素温度计指示其形成于较高的温度，约为291℃。三个矿床硫化物具有富集重S同位素和高放射成因铅同位素特征，指示成矿物质来源于震旦系-下古生界海相沉积岩。综合认为锡洞沟和银洞凹矿床为MVT矿床，而关子沟矿床为SEDEX型矿床，南秦岭郧西-旬阳地区铅锌矿床具有多成因的特点。
- 南秦岭 /
- 铅锌矿床 /
- 矿床成因 /
- 闪锌矿微量元素 /
- 硫-铅同位素
Abstract: In order to investigate the genesis of lead-zinc deposits hosted in the Sinian-Lower Paleozoic sedimentary strata of South Qinling, this study conducted deposit geology, carbonate UPb dating, sphalerite trace elemental analyses, and sulfides S-Pb isotopic analyses for the Xidonggou, Yindongao, and Guanzigou deposits hosted in different strata. The U-Pb age of carbonates from the Yindongao deposit was determined to be 456 ± 24 Ma, which is similar to the mineralization age of MVT deposits on the Northern margin of the Yangtze Block. Sphalerite from the Xidonggou deposit contains high Ge and Cd contents, sphalerite from the Yindongao deposit contains high Ge and Cd contents, the sphalerite trace element geothermometer indicates mineralization temperatures of approximately 218℃ and 137℃， respectively. While sphalerite from the Guanzigou deposit contains high Fe and Co contents, the sphalerite trace element geothermometer indicates a mineralization temperature of approximately 291℃ . The sulfides from the three deposits are characterized by enriched heavy sulfur isotopes and highly radiogenic lead isotopes, indicating that the ore-forming materials were derived from Sinian-Lower Paleozoic marine sedimentary rocks. Overall, it is concluded that the Xidonggou and Yindongao deposits are MVT deposits, while the Guanzigou deposit is a SEDEX deposit. The laed-zinc deposits in the Yunxi-Xunyang district of the South Qinling exhibit multi-genetic characteristics.
- South Qinling /
- Pb-Zn deposit /
- Ore genesis /
- sphalerite trace elements /
- S-Pb isotopes

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参考文献(67)

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南秦岭郧西-旬阳地区铅锌矿床成因：原位U-Pb定年、S-Pb同位素和闪锌矿微量元素的制约

doi: 10.3799/dqkx.2026.109

作者简介:
廖旺（1994-），男，博士，工程师，主要从事成矿理论与找矿勘查研究，ORCID：0009-0001-1204-396X，E-mail:liao-wang@cug.edu.cn

通讯作者:
杨良哲（1981-），男，高级工程师，主要从事成矿理论与找矿勘查研究，ORCID：0009-0003-5790-5396，E-mail:Yangliangzhe@126.com

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The origin of Pb-Zn deposits in Yunxi-Xunyang district, South Qinling: Constrains from in situ U-Pb dating, S-Pb isotopes and sphalerite trace elements

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南秦岭郧西-旬阳地区铅锌矿床成因：原位U-Pb定年、S-Pb同位素和闪锌矿微量元素的制约

doi: 10.3799/dqkx.2026.109

作者简介: 廖旺（1994-），男，博士，工程师，主要从事成矿理论与找矿勘查研究，ORCID：0009-0001-1204-396X，E-mail:liao-wang@cug.edu.cn

通讯作者: 杨良哲（1981-），男，高级工程师，主要从事成矿理论与找矿勘查研究，ORCID：0009-0003-5790-5396，E-mail:Yangliangzhe@126.com

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The origin of Pb-Zn deposits in Yunxi-Xunyang district, South Qinling: Constrains from in situ U-Pb dating, S-Pb isotopes and sphalerite trace elements

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出版历程

目录

作者简介:
廖旺（1994-），男，博士，工程师，主要从事成矿理论与找矿勘查研究，ORCID：0009-0001-1204-396X，E-mail:liao-wang@cug.edu.cn

通讯作者:
杨良哲（1981-），男，高级工程师，主要从事成矿理论与找矿勘查研究，ORCID：0009-0003-5790-5396，E-mail:Yangliangzhe@126.com