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| 内蒙古赤峰莲花山金矿黄铁矿化学成分标型特征及其矿床学意义 |
| Chemical Fingerprinting Characteristics of Pyrite from the Lianshan Gold Deposit, Chifeng, Inner Mongolia, and Their Significance in Ore Deposit Geology |
| 投稿时间：2025-07-01 修订日期：2026-05-19 |
| DOI： |
| 中文关键词: 莲花山金矿 黄铁矿 成分标型特征 矿床成因 找矿预测 |
| 英文关键词:Lianhuashan Gold Deposit Pyrite Chemical Fingerprinting Characteristics Metallogenesis Exploration Prediction |
| 基金项目:内蒙古自治区地质勘查基金管理中心科研项目“内蒙古自治区赤峰市柴胡栏子地区典型矿田构造岩相测量与成矿规律研究”([2019]科研-02)、福建省自然科学基金资助项目“基于无人机遥感的烟草生长信息提取和产量估算”(2020J01359)和校企合作项目“绢云母红外光谱特征的制约因素研究”(BM-2019-08)和联合资助 |
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| 中文摘要: |
| 莲花山金矿位于赤峰-朝阳金成矿带西北缘。由于多年的开采,目前矿床金矿保有储量无法满足持续生产的需要,深边部找矿工作急需加强。本文通过对矿区黄铁矿成分标型的分析,探讨其成矿机制及矿床类型,并提出了找矿工作的指导建议。研究结果表明,(1)Co/Ni值、Au/Ag比值、S/Se比值、As-Co-Ni三角图和Co-Ni元素关系图表明莲花山金矿床成矿复杂,主要与区内的老地层、区域变质、大气降水和岩浆活动有关；(2)w(Fe)/w(S+As)比值、黄铁矿微量元素综合比值H、微量元素组合分布图表明矿床深部应还有较好的找矿前景并结合控矿构造认为51号脉向下延伸200m间可能有富矿体的存在。 |
| 英文摘要: |
| The Lianhuashan Gold Deposit is situated on the northwestern margin of the Chifeng-Chaoyang Gold Metallogenic Belt. Due to prolonged mining activities, the current retained gold reserves are insufficient to sustain continuous production, necessitating enhanced exploration efforts in the deep and peripheral zones. This study investigates the metallogenic mechanisms and deposit types through the analysis of pyrite compositional typomorphism and proposes guiding recommendations for prospecting. The results indicate that:(1) The Co/Ni ratio, Au/Ag ratio, S/Se ratio, As-Co-Ni ternary diagram, and Co-Ni elemental correlation diagram suggest that the mineralization of the Lianhuashan Gold Deposit is complex, primarily associated with ancient strata, regional metamorphism, meteoric water infiltration, and magmatic activity.(2) The w(Fe)/w(S+As) ratio, comprehensive pyrite trace element ratio H, and trace element assemblage distribution diagram reveal favorable prospecting potential at greater depths. Combined with ore-controlling structural analysis, it is inferred that a high-grade orebody may exist within a 200-meter downward extension of Vein No. 51. |
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