湘西龙王江金锑矿田变形序列、成矿时代背景与控矿构造

doi:10.3799/dqkx.2025.175

湘西龙王江金锑矿田变形序列、成矿时代背景与控矿构造

doi: 10.3799/dqkx.2025.175

1. 湖南省自然资源调查所, 湖南长沙 410007;
2. 湖南省地质调查所, 湖南长沙 410114;
3. 中国地质调查局武汉地质调查中心(中南地质科技创新中心), 湖北武汉 430205;
4. 东华理工大学地球科学学院

基金项目:

自然资源部新一轮找矿突破战略行动科技支撑项目(NO.ZKKJ202408)

湖南省地质院科技计划项目(NO.HNGSTP202460、HNGSTP202407、201917)

湖南省自然科学基金(NO.2024JJ8344)

湘财电采[2024]104025

详细信息

作者简介:
赵央连(1971-),男,高级工程师,长期从事地质找矿及研究工作.ORCID:0009-0004-4681-8497.E-mail:13807459225@163.com.

通讯作者:
李彬，ORCID:0009-0008-4846-8653.E-mail:cuglibin@163.com

柏道远，ORCID:0000-0002-0267-7838.E-mail:daoyuanbai@sina.com.

中图分类号: P512、P613、P618.51
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出版历程
- 收稿日期: 2025-04-06
- 网络出版日期: 2025-09-08

Deformation sequence, metallogenic age setting and ore-controlling structures of the Longwangjiang gold-antimony ore-field in western Hunan, south China

1. Natural Resources Survey Institute of Hunan Province, Changsha, Hunan 410007, China;
2. Geological Survey Institute of Hunan Province, Changsha, Hunan 410014, China;
3. Wuhan Center of China Geological Survey (China Central South China Innovation Center for Geosciences), Wuhan, Hubei 430205, China;
4. School of Earth Sciences, East China University of Technology, Nanchang, Jiangxi 330013, China

摘要

摘要: 为厘清湘西龙王江金锑矿田构造变形序列、控矿构造并揭示矿田形成的时代及构造背景，利用细致的构造解析与含矿石英脉热液锆石LA-ICP-MS U-Pb定年，结合区域构造演化和测年资料，厘定了研究区由早至晚经历了6期构造变形事件：志留纪晚期NW～NWW向挤压、中三叠世晚期NW～NWW向挤压、晚三叠世近SN向挤压、中侏罗世晚期NWW向挤压、白垩纪区域NW—SE向伸展、古近纪中晚期NEE向～NE向挤压；获得了石英矿脉热液锆石LA-ICP-MS U-Pb年龄为211.8±4.8Ma。综合分析认为：龙王江矿田成矿可能主要发生于晚三叠世（211～206Ma），成矿背景与印支期华南陆缘碰撞触发的陆内造山后碰撞阶段岩浆活动及晚期热液有关。矿田构造定位于龙王江断裂(F₁)和黑土坡断裂(F₂)反向逆冲围限的断夹块中，F₁和F₃（江东湾断裂）是导矿构造，NE～NNE向强劈理化带（剪切带）和F₃为配矿兼含矿构造；配矿兼含矿构造深部具有较大找矿潜力，陶金坪—火毛塘一带构造应力集中部位可重点部署勘查工作。
- 变形序列 /
- 热液锆石U-Pb定年 /
- 成矿时代及背景 /
- 控矿构造 /
- 龙王江金锑矿田 /
- 江南造山带
Abstract: To clarify the deformation sequence and ore-controlling structures of the Longwangjiang Au-Sb ore-field in western Hunan, as well as to reveal the age and tectonic setting of its formation, we conducted detailed structural analyses and LA-ICP-MS U-Pb dating of ore-bearing quartz vein hydrothermal zircon. Additionally, we comprehensively analyzed regional tectonic evolution and age data. The study area underwent six stages of structural deformation events, progressing from early to late: late Silurian NW-NWW compression, late Middle Triassic NW-NWW compression, late Late Triassic near SN compression, late Middle Jurassic NWW compression, Cretaceous regional NW-SE extension, and mid-late Cenozoic NEE~NE compression. The LA-ICP-MS U-Pb age of the quartz vein hydrothermal zircon was determined to be 211.8±4.8 Ma. The comprehensive analysis suggests that: mineralization primarily occurred during the late Triassic (211–206 Ma) and the formation of the Longwangjiang ore-field is associated with late-stage hydrothermal activity triggered by the collision of the Indochina period with the South China margin during the intracontinental collision phase. The ore-field is situated within a block confined by the reverse thrust of the Longwangjiang fault (F₁) and the Heitupo fault (F₂). The F₁ and F₃ faults serve as ore-guiding structures, while the NE-NNE-trending strong foliated zones (shear zones) and the Jiangdongwan fault serve as ore-distributing and ore-bearing structures simultaneously. The ore-distributing and ore-bearing structures in the deep parts of the ore deposit have great mineral exploration potential; the Taojinping-Huomaotang area is a key region for exploration due to concentrated structural stress.
- deformation sequence /
- U-Pb dating of hydrothermal zircon /
- metallogenic age and setting /
- ore-controlling structures /
- Longwangjiang Au-Sb ore-field /
- Jiangnan Orogen

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参考文献(68)

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湘西龙王江金锑矿田变形序列、成矿时代背景与控矿构造

doi: 10.3799/dqkx.2025.175

作者简介:
赵央连(1971-),男,高级工程师,长期从事地质找矿及研究工作.ORCID:0009-0004-4681-8497.E-mail:13807459225@163.com.

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李彬，ORCID:0009-0008-4846-8653.E-mail:cuglibin@163.com

柏道远，ORCID:0000-0002-0267-7838.E-mail:daoyuanbai@sina.com.

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Deformation sequence, metallogenic age setting and ore-controlling structures of the Longwangjiang gold-antimony ore-field in western Hunan, south China

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湘西龙王江金锑矿田变形序列、成矿时代背景与控矿构造

doi: 10.3799/dqkx.2025.175

作者简介: 赵央连(1971-),男,高级工程师,长期从事地质找矿及研究工作.ORCID:0009-0004-4681-8497.E-mail:13807459225@163.com.

通讯作者: 李彬，ORCID:0009-0008-4846-8653.E-mail:cuglibin@163.com 柏道远，ORCID:0000-0002-0267-7838.E-mail:daoyuanbai@sina.com.

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Deformation sequence, metallogenic age setting and ore-controlling structures of the Longwangjiang gold-antimony ore-field in western Hunan, south China

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作者简介:
赵央连(1971-),男,高级工程师,长期从事地质找矿及研究工作.ORCID:0009-0004-4681-8497.E-mail:13807459225@163.com.

通讯作者:
李彬，ORCID:0009-0008-4846-8653.E-mail:cuglibin@163.com

柏道远，ORCID:0000-0002-0267-7838.E-mail:daoyuanbai@sina.com.