| 魏江,安文通,张之武,任良良,杨吉刚,王旭.山东乳山唐家沟金矿构造叠加晕研究及深部预测[J].地质找矿论丛,2023,38(4):532-540 |
| 山东乳山唐家沟金矿构造叠加晕研究及深部预测 |
| Study on tectonic overprinting halo in Tangjiagou Au deposit, Rushan county, Shandong province and the deep ore prediction |
| 投稿时间：2023-06-30 修订日期：2023-11-20 |
| DOI：10.6053/j.issn.1001-1412.2023.04.015 |
| 中文关键词: 唐家沟金矿 构造叠加晕 深部预测 矿床地球化学 山东省 |
| 英文关键词:Tectonic overprinting halo method deep ore prediction deposit geochemistry Au deposit Shandong province |
| 基金项目:中国冶金地质总局科研项目"基于三维可视化平台的构造叠加晕深部盲矿预测技术研究"(编号:CMGBK202107)资助。 |
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| 中文摘要: |
| 本文基于构造叠加晕理论开展了山东乳山唐家沟金矿的地球化学特征研究。通过分析围岩和矿(化)体的元素异常特征,确定了唐家沟金矿异常背景值,研究了矿床的指示元素特征;通过相关性分析研究了唐家沟金矿前缘晕元素、近矿晕元素和尾晕元素之间相关的情况,表明唐家沟金矿存在多期多阶段成矿作用叠加;通过确定元素异常浓度分带,分析矿床地球化学异常及分布规律,研究了特征指示元素轴向变化特征,并在此基础上在已知矿体的深部圈定3个预测靶区。研究表明,唐家沟金矿的地球化学特征基本符合国内多数热液型金矿床的规律,但是也有其独特之处。因此,对于特定热液型金矿床的深部预测,需要在借鉴前人研究的同时注重矿床本身的特点,这样的预测结果才更为有效。 |
| 英文摘要: |
| This paper deals with the tectonic overprinting halo theory-based geochemical characteristics of Tangjiagou Au deposit. Element anomaly characteristics of wall rock and mineralized body are analyzed to determine background value and study characteristics of indicating elements of the Au deposit. Study and analysis of correlation of elements in the front halo, near ore halo and tail halo show overprinting of multi-stage mineralization during formation of the Au deposit; determination of zoning of element concentration of the anomalies, distribution law of their distribution and axial variation law of the characteristic indicating elements. Three targets for further exploration are predicted to depth of the Au deposit. Geochemical characteristics of the Au deposit is generally coincided with those of the most hydrothermal Au deposits in China. However, it is also unique in some aspects. Therefore, to make successful deep ore prediction for specific hydrothermal Au deposit dose not only refer to previous researches but also pay attention to specific feature of itself. |
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