安徽五河县天井湖铅金矿床成矿地质特征及控矿因素

杜东旭; 张家嘉; 张顺林; 顾大年

doi:10.19388/j.zgdzdc.2021.01.04

安徽五河县天井湖铅金矿床成矿地质特征及控矿因素

安徽省勘查技术院,合肥 230031

基金项目: 安徽省公益性地质调查“五河县荣渡—小溪集金及多金属矿整装勘查(编号: 2010-2-34、2011-2-28、2013-3-09、2015-2-9)”项目资助

详细信息

作者简介:
杜东旭(1990—),男,工程师,主要从事固体矿产勘查及成矿规律研究。Email: yw_dudongxu@163.com。

中图分类号: P618.42;P618.51
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出版历程
- 收稿日期: 2020-03-29
- 修回日期: 2020-07-08
- 刊出日期: 2021-02-19

Geological characteristics and ore-controlling factors of Tianjinghu Pb-Au deposit in Wuhe County of Anhui Province

Geological Exploration Technology Institute of Anhui Province, Hefei 230031, China

摘要

摘要: 天井湖铅金矿是中型铅金共生矿床,处于近EW向蚌埠隆起和NNE向郯庐断裂带交叉复合部位,区内构造及岩浆岩发育,成矿地质条件良好。为了分析天井湖铅金矿床的控矿因素并建立成矿模式,在调研近期勘查成果并充分收集前人资料的基础上,总结了天井湖铅金矿床的成矿地质特征,研究了天井湖铅金矿区及五河地区的地层、构造、岩浆岩等控矿因素。天井湖铅金矿床主要控矿因素是NNE—NE向、SN向断裂; 西堌堆岩组沉积-变质岩系是该矿床的赋矿地层; 中酸性脉岩和规模较大的岩体对含矿热液的形成、成矿物质的活化和运移具有重要意义; 西堌堆岩组及五河岩群为断裂活动提供了空间,并为金矿成矿提供了部分物质来源。该成果完善了五河地区金矿成矿模式,为该地区寻找同类型矿床提供理论指导。
- 天井湖铅金矿床 /
- 中型矿床 /
- 成矿地质特征 /
- 控矿因素 /
- 安徽省五河县
Abstract: Tianjinghu Pb-Au deposit, located at the intersection between the EW-trending Bengbu uplift and the NNE-trending Tan-Lu fault zone, is a medium-size Pb-Au symbiotic deposit. The magmatic activity in the area is well developed, and the metallogenic conditions are good. In order to analyze the ore-controlling factors of Tianjinghu Pb-Au deposit, and establish its metallogenic model, the authors summarized the metallogenic geological characteristics and investigated the characteristics of ore-controlling factors such as stratum, structure and magmatic rocks in Tianjinghu Pb-Au mining area and other areas of wuhe, based on recent new results and previous data. The main ore-controlling factors of the deposit are NNE-NE-trending and SN-trending fault structures. The sedimentary-metamorphic rock system of Xigudui Formation is an ore-forming stratum. The intermediate-acidic vein rocks and large-scale rock masses are of great significance to the formation of ore-bearing hydrothermal fluids and the activation and migration of ore-forming materials. Xigudui Formation and Wuhe Group provide space for fault activities and some material sources for gold deposits. This achievement improves the metallogenic and ore-controlling pattern of gold deposits in Wuhe area, and also provides some theoretical basis and reference for the search for the same type of deposits in this area.
- Tianjinghu Pb-Au deposit /
- medium-size deposit /
- metallogenic geological characteristics /
- ore-controlling factors /
- Wuhe County of Anhui Province

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