九瑞矿集区邓家山地区铜金矿床地质特征及找矿潜力分析

Geological characteristics and potential analysis for copper gold deposits in Denjiashan area of Jiurui metallogenic cluster district

中文关键词: 地质特征  物化探特征  铜金矿床  邓家山  九瑞中图分类号:P618.41  P618.51文献标志码:A文章编号:1674-7801(2025)02-0254-13

英文关键词: geological characteristics  geophysical and geochemical characteristics  gold copper deposits  Den-jiashan  Jiurui

中文摘要:

      九瑞矿集区是中国长江中下游铁铜成矿带之中的重要成矿区，本文总结邓家山地区成矿条件及铜、金矿化地质特征，分析区内地球化学与地球物理资料，结合分析远端浸染型金矿化与矽卡岩型铜矿床之间成矿的对应关系，提出中部环圆状的弱磁异常(Wc2)、低重力异常、土壤化探综合异常(HT2)与本区已知隐伏岩体、金矿化点的分布、对应关系明显，反映出区内隐伏岩体向北东延伸，即从龙垱沟延伸至堡下-黄柏岩背斜核部，该背斜核部具有较大的矽卡岩型铜(钼)矿找矿潜力。

英文摘要:

      The Jiurui ore concentration area is an important mineralization zone within the iron and coppermineralization belt in the middle and lower reaches of the Yangtze River in China. This paper summarizes the miner-alization conditions and geological characteristics of copper and gold mineralization in the Dengjiashan area, ana-lyzes the geochemical and geophysical data in the area, and combines the analysis of the corresponding relationshipbetween the distal disseminated gold mineralization and the skarn-type copper deposit. It is proposed that the weakmagnetic anomaly (Wc2) in the middle ring-shaped area, the low gravity anomaly, and the soil geochemical explora-tion comprehensive anomaly (HT2) have a clear distribution and corresponding relationship with the known con-cealed rock bodies and gold mineralization points in the area, reflecting that the concealed rock bodies in the areaextend northeastward, that is, from Longdanggou to the core of the Baoxia-Huangbaiyan anticline. The core of thisanticline has a large potential for skarn-type copper (molybdenum) mineralization.