中国地质调查2026，Vol.13Issue(4)：12-22,11.DOI:10.19388/j.zgdzdc.2025.247
雪峰弧形构造带中段枫溪江金矿地质特征与找矿标志
Geological characteristics and prospecting indicators of Fengxi river gold deposit in the central segment of Xuefeng arcuate tectonic belt
摘要
Abstract
Fengxi river gold mine in Longhui County of Hunan Province is located in the central segment of Xue-feng arcuate tectonic belt within Jiangnan Orogenic Belt,which had undergone multiple phases of tectonic-mag-matic activity and regional metamorphism,making it a significant polymetallic gold metallogenic prospecting area in South China.Based on comprehensive regional geological data and exploration results,and combined with geo-physical,geochemical,trenching,and drilling data,the authors in this research systematically investigated the metallogenic geological conditions and prospecting indicators of Fengxi river gold mine.The results showed that 7 ore veins and mineralized zones had been exposed at Fengxi river gold mine,and the mineralization was mainly hosted in the contact zones between the shallow-metamorphosed clastic rocks of Qingbaikou System and the vol-canic-sedimentary rocks of Nanhua System,as well as interlayer fault zones.The wall rock alteration featured moderate to strong silicification and pyritization.Seven Au anomalies and six As anomalies were delineated,form-ing four combined anomalies.Additionally,a comprehensive prospecting indicator system was established,inclu-ding stratigraphy,structure,mineralogy,heavy minerals,geophysical anomaly,geochemical anomaly,and old workings.The stratigraphic contact between Qingbaikou System and Nanhua System,high polarizability-medium-low resistivity geophysical anomaly,Au-As association geochemical anomaly,strong silicification-pyritization-arsenopyritization were identified as core prospecting markers.The research findings could provide basis for subse-quent prospecting deployments and regional exploration of similar gold deposits in this area.关键词
枫溪江金矿/地球物理/地球化学/矿脉和矿化带/找矿标志Key words
Fengxi river gold deposit/geophysics/geochemistry/veins and mineralization zones/exploration in-dicators分类
天文与地球科学引用本文复制引用
刘小坚,李海平,陈盼盼,章威,慕振明..雪峰弧形构造带中段枫溪江金矿地质特征与找矿标志[J].中国地质调查,2026,13(4):12-22,11.基金项目
中国地质调查局"湖南怀化—邵阳金矿重点调查区调查评价(编号:DD20230386)"和"湘西南新邵—会同地区洪江市等4幅1:5万矿产地质调查(编号:DD202602110003)"项目联合资助. （编号:DD20230386）
