| 黄永聪,刘华应,董金涛,徐强,任远征.桂东大瑶山地区金成矿背景及找矿方向——以新众金矿区为例[J].矿产勘查,2020,11(11):2347-2353 |
| 桂东大瑶山地区金成矿背景及找矿方向——以新众金矿区为例 |
| Metallogenic background and prospecting direction of gold deposit in Dayaoshan area of East Guangxi: Taking Xinzhong gold deposit as an example |
| 投稿时间：2020-05-15 |
| DOI： |
| 中文关键词: 斑岩型金矿 地质调查工程 矿床类型 桂东大瑶山 广西 |
| 英文关键词: porphyry gold deposit, Dayaoshan, eastern Guangxi, geological survey engineering, ore deposit type, Guangxi |
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| 中文摘要: |
| 桂东大瑶山地区金矿床(点)具有规模小、分布广、构造背景等特征,结合新众矿区金矿矿体形态、矿化特征、物质来源、成矿演化等研究,本文阐述了中生代三江圩—大黎断裂及衍生构造与矿体的时空关系,以及深部变质热液(隐伏热能)形成的浅蚀变破碎型和浅部石英脉型金矿的成矿机制。此外,基于新众周边矿区花岗岩测年数据,对研究区成矿时代加以印证。提出了研究区金矿为构造接触型、斑岩型和矽卡岩型等多成因的成矿过程。为下一步深部热液斑岩型金矿勘查提供方向和依据。 |
| 英文摘要: |
| In this paper, the characteristics of small scale, wide distribution and complex structure of gold deposits in Dayaoshan area of eastern Guangxi are studied, and the orebody morphology, mine-ralization characteristics, material source and metallogenic evolution of Xinzhong mining area are analyzed. The spacetime relationship between the Sanjiangwei Dali fault and the formation of the derived structure and orebody in the study area, as well as the mineralization mechanism of the quartz vein type gold deposit formed by the shallow erosion fracture type and the shallow tectonic action formed by the deep metamorphic hydrothermal fluid (hidden thermal energy) are described. In addition, based on the granite dating data of Xinzhong surrounding mining area, the metallogenic era of gold deposits in the study area is confirmed. Based on this, the metallogenic process of gold deposit under tectonic contact type, porphyry type and skarn type is proposed. It provides the direction and basis for the exploration of deep hydrothermal porphyry gold deposit in the study area. |
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