| 陈丽娟,曹纪虎,马玉见,高光明,刘清泉.豫西栾川县石崖沟铅锌多金属矿床地质特征及找矿前景分析[J].矿产勘查,2024,15(12):2234-2248 |
| 豫西栾川县石崖沟铅锌多金属矿床地质特征及找矿前景分析 |
| Analysis on geological characteristics and prospecting potential of Shiya-gou lead-zinc polymetallic deposit in Luanchuan County, Western Henan |
| 投稿时间：2024-01-22 |
| DOI：10.20008/j.kckc.202412007 |
| 中文关键词: 矿床地质特征 找矿前景 铅锌多金属矿床 石崖沟 |
| 英文关键词: geological characteristics prospecting potential lead-zinc polymetallic deposit Shiyagou |
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| 中文摘要: |
| 豫西栾川县石崖沟铅锌多金属矿区位于马超营断裂南侧，近年来取得了较好的找矿效果，但综合研究程度较低，矿区及周边找矿缺乏理论指导。为此，本文在野外地质调查的基础上，分析研究区域地质背景、矿床地质特征及物化探异常特征，对石崖沟铅锌多金属矿区的找矿前景进行了评价。综合分析认为，矿床类型为矽卡岩型，成矿物质主要来源于管道口群和栾川群地层，成矿地质体为燕山期中酸性侵入岩，成矿构造为环形、放射状侵入岩体构造系统以及 NW向断裂构造，矿化体主要赋存于侵入岩与碳酸盐岩接触带中；1∶10000土壤地球化学测量圈定 7个综合异常，Au、Ag、Pb、Zn、W、Mo元素具有强富集、强分异性的地球化学异常特征，元素异常分带、浓集中心明显，其中 4个综合异常经查证，有铅锌金多金属矿体产出。结合成矿地质特征及控矿因素，推测本区具有较好的铅锌多金属矿找矿前景。本研究对矿区今后的找矿工作有一定的指导意义，为具有相似成矿地质条件的周边地区提供了典型找矿案例。 |
| 英文摘要: |
| The Shiyagou lead-zinc polymetallic deposit is located at the south of Machaoying fault zone, in Lu.anchuan County, western Henan Province. Although significant achievements have been made in recent years, thedegree of comprehensive research is relatively low and there is a lack of theoretical guidance for prospecting in thismining aera. Therefore, based on previous field geological survey, this paper analyzes the regional geological setting,geological characteristics, geophysical and geochemical anomalies of the deposit, and finally evaluates the prospect.ing potential. According to comprehensive analysis, Shiyagou lead-zinc polymetallic deposit is a skarn-type de.posit. The metallogenic materials of this deposit are mainly from the Guandaokou Group and Luanchuan Groupstrata. The metallogenic geological body is Yanshanian intermediate-acid intrusive rock. The metallogenic structureincludes a ring-shaped, radial intrusive rock structural system and NW-trending fault structure. The mineralizedbody mainly exists in the contact zone between intrusive rocks and carbonate rocks. The 1∶10,000 soil geochemicalmeasurements circled seven composite anomalies, and the elements of Au, Ag, Pb, Zn, W and Mo are characterizedby geochemical anomalies with strong enrichment and divergence, and the elemental anomalies are clearly dividedinto zones and concentration centers. Among them, four composite anomalies have been verified to have lead-zinc-gold polymetallic ore outputs. Combined with the geological characteristics and ore-controlling factors, this papercomes to the conclusion that the deposit shows good prospecting potential for the exploration of lead-zinc. Thisstudy is of great significance to the future prospecting work in the mining area, and provides a typical case for pros.pecting in the neighboring areas with similar geological conditions. |
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