豫西铁岭金铅矿床地质特征及找矿潜力分析

豫西铁岭金铅矿床位于熊耳山金矿田西南段，受地层、构造和岩浆岩控矿作用强烈，具有良好的成矿地质条件。为了进一步开展铁岭金铅矿床深部找矿工作，探寻找矿方向，通过对铁岭金铅矿床的区域地质背景、矿床地质特征和成矿规律进行综合研究，探讨铁岭金铅矿床成因，并结合矿床已施工工程，根据已知矿体的浅部及中深部厚度和品位数据，利用MAPGIS的DTM空间分析功能对矿区Pb1、Ⅰ-1号主矿脉深部矿体变化趋势进行预测。区内Pb1铅矿体整体沿走向向西倾伏，02~2线中部存在无矿段；0线以西存在连续的矿体集中分布区，矿体向深部侧伏延伸，具有膨大现象。Ⅰ-1号铅矿体浅部存在2个浓集中心，其与已形成的采空区范围基本一致；02~4线之间浅部及中部存在无矿段；在8线以西矿体整体沿走向向西侧伏，04线以西深部存在膨大现象。研究结果表明：铁岭金铅矿床属于中低温岩浆热液型金铅矿床，区内Pb1铅矿脉0线以西深部、Ⅰ-1号铅矿脉04线以西深部和金矿脉04线以西深部均为有利的找矿区域。

Geological Characteristics and Prospecting Potential Analysis of Tieling Au-Pb Deposit in Western Henan

The Tieling Au-Pb deposit is located in the southwest section of the Xiong’ershan gold field.A series of Pb-Zn deposits are distributed in this area，which are strongly controlled by strata，structures and magmatic rocks，and have good metallogenic geological conditions.The geological characteristics，fluid inclusions，stable isotope geochemistry and isotopic age of many deposits in the area have been studied in detail，but the metallogenic prediction and prospecting prospect of the deposits are rarely studied.In order to guide the deep prospecting of Tieling gold deposit and point out the prospecting direction in the future，through comprehensively study of the regional geological background，geological characteristics and metallogenic regularity of the deposit，the genesis of Tieling Au-Pb deposit was discussed.And combined with the cons-truction project of the deposit，according to the known orebody in the shallow and deep thickness，grade，DTM based on MAPGIS spatial analysis function，the data were processed by discrete grid，and the thickness grade weight contour map of the orebody was drawn on the vertical projection map，and the trend prediction of the deep orebody of Pb1 and I-1 main vein was carried out.The Pb1 orebody in the area dips westward along the strike，and there is a none-ore section in the middle of line 02 to line 2.And a continuous centralized orebody，which extends laterally to the deep，with swelling phenomenon，is distributed in the west of line 0.There are two concentrated centers in the shallow part of Ⅰ-1 lead orebody，which are basically consistent with the scope of the formed goaf.There is no ore section in the shallow part and middle part of line 02 to line 4.In the west of line 8，the whole area falls to the west side along the strike，and in the west of line 4，there is swelling phenomenon.The results show that Tieling Au-Pb deposit is a medium low temperature magmatic hydrothermal Au-Pb deposit.The deep part to the west of line 0 of Pb1 lead vein，the deep part to the west of line 04 of Ⅰ-1 lead vein，and the deep part to the west of line 04 of gold vein are favorable prospecting areas in the future.