雷波县安寨坪铅锌矿物化探异常特征及找矿远景  

Geochemical Anomaly and Prospecting of Anzhaiping Lead-zinc Ore in Leibo County

作　　者：罗兴海 张芹贵 李佐强 赵福 LUO Xinghai;ZHANG Qingui;LI Zuoqiang;ZHAO Fu(The 7th Geological Team of Sichuan,Leshan 614000)

机构地区：[1]四川省第七地质大队,四川乐山614000

出　　处：《四川地质学报》2024年第4期620-624,663,共6页Acta Geologica Sichuan

摘　　要：矿区位于扬子准地台西部(Ⅰ2),上扬子台褶带(Ⅱ2),美姑—金阳陷褶束北东段。矿体呈似层状、透镜状、脉状产于寒武系下统筇竹寺组第三段泥质粉砂岩张性破碎带中,通过区内化探工作圈定多个综合异常,其中AP3、AP4异常浓集中心明显,多元素套合程度好,异常面积大、强度高。通过物探工作圈定的激电异常呈现高极化率、低电阻率特征。物化异常均在同一地段显示高异常值,经工程验证确认为矿致异常。通过上述特征初步总结矿床成因,评述区内找矿远景,力争取得找矿新突破。The mining area is located in the western part of the Yangtze platform(Ⅰ2),the upper Yangtze fold belt(Ⅱ2),and the north-eastern part of the Meigu-Jinyang depression fold.The ore bodies are stratiform,lenticular,veined,located in the shale siltstone tensional fracture zone of the third member of the Lower Cambrian Qiongzhusi Formation.A number of comprehensive anomalies have been delineated through geochemical exploration in the area,among which AP3 and AP4 anomalies have obvious concentration centers,good degree of multi-element integration,large anomaly area and high intensity.The geophysical anomalies are characterized by high polarizability and low resistivity.The geophysical and geochemical anomalies showed high abnormal values in the same section,and were confirmed related to mineralization by engineering verification.Based on the above characteristics,the genesis of the deposit is preliminarily summarized,and the prospecting in the area is reviewed,in order to make new breakthroughs in prospecting.

关 键 词：铅锌矿 物化探异常 找矿远景 安寨坪 

分 类 号：P631[天文地球—地质矿产勘探] P632[天文地球—地质学]