利用地质统计学对盲矿体的空间形态分析——以赤峰市初头朗某金矿为例  

Spatial Pattern Analysis of Blind Orebodies Using Geostatistics——a Case Study of a Gold Deposit in Chutoulang,Chifeng

作　　者：姚德环 YAO De-huan(Liaoning Ninth Geological Brigade Co.,Ltd.,Tieling 112000,China)

机构地区：[1]辽宁省第九地质大队有限责任公司,辽宁铁岭112000

出　　处：《有色矿冶》2023年第5期1-6,共6页Non-Ferrous Mining and Metallurgy

摘　　要：矿区位于华北地台北缘、红花沟-柴胡栏子金成矿带内,该成矿带已发现有柴胡栏子金矿、莲花山金矿等多个金矿床。本区通过查证物探异常,深部发现新的盲矿体,并参考区域成矿规律,以点带面全面开展探矿工作。由于本区发现的金矿属于盲矿体,且赋矿围岩、控矿构造均没有显著特征,前期工作中一直无法准确掌握矿体空间展布规律。本次在前期工作基础上,利用地质统计学,以大的控矿构造为单元,对本区金矿热液三维空间分布规律进行综合分析研判,初步还原金矿的三维空间展布特征,同时参照邻区已有成矿模式,总结本区矿床成矿特征,对空白区域进行找矿预测及潜力评价。The mining area is located in the Honghuagou-Chaihu lanzi Gold metallogenic belt on the northern margin of the North China platform.Many gold deposits,such as the Chaihulanzi gold deposit and the Lianhuashan gold deposit have been discovered in this metallogenic belt.New blind ore bodies are found in the depth of the area by checking geophysical anomalies,and the prospecting work is carried out in an all-round way with the reference of regional metallogenic regularity.Because the gold deposit discovered in this area is a blind ore body,and the host rock and ore-controlling structure have no obvious characteristics,the spatial distribution law of the ore body can not be accurately grasped in the previous work.On the basis of the previous work,the distribution of hydrothermal 3D in gold deposits in this area was comprehensively analyzed and judged by using geostatistics and taking large orecontrolling structures as units,the 3D distribution characteristics of primary reduced gold deposits.At the same time,according to the existing metallogenic model in the adjacent area,the metallogenic characteristics of this area are summarized,and the prospecting prediction and potential evaluation of the blank area are carried out.

关 键 词：三维空间 金矿 成矿规律 地质统计 盲矿体 

分 类 号：P612[天文地球—矿床学]