隐伏矿找矿成功案例分析——以辽宁瓦房店地区金刚石矿找矿为例  

Successful Cases of Hidden Ore Prospecting——Taking the Diamond Deposit Exploration as an Example in the Wafangdian Region of Liaoning

作　　者：付海涛 戴晓川 许洪斌[3] 张国仁 蒋丽丽 万方来[3] 仲米山 李祎昕 李金龙 FU Hai-tao;DAI Xiao-chuan;XU Hong-bin;ZHANG Guo-ren;JIANG Li-li;WAN Fang-lai;ZHONG Mi-shan;LIYi-xin;LI Jin-long(Liaoning Geological Exploration and Mining Group,Shenyang,110032,China;Liaoning Provincial Department of Natural Resources,Shenyang 110032,China;Liaoning Sixth Geological Brigade Co.,Ltd.,Dalian 116200,China;Liaoning Provincial Institute of Geological Exploration Co.,Ltd.,Dalian 116100,China;Geophysical Measuring Exploration Institute Co.,Ltd.,Shenyang 110031,China)

机构地区：[1]辽宁省地质勘探矿业集团,辽宁沈阳110032 [2]辽宁省自然资源厅,辽宁沈阳110032 [3]辽宁省第六地质大队有限责任公司,辽宁大连116200 [4]辽宁省地质勘查院有限责任公司,辽宁大连116100 [5]辽宁省物测勘查院有限责任公司,辽宁沈阳110031

出　　处：《中国非金属矿工业导刊》2023年第5期6-10,共5页China Non-Metallic Minerals industry

基　　金：中国地质调查局发展研究中心项目(编号:中地调研合同[2020]第275号);中国地质调查局南京地质调查中心项目(编号:NJZX-W-2018-139);辽宁省地质勘查项目(编号:LNZC2019-0078-1、LNZC2019-0078-11、LNZC2019-0078-20、JH22-210000-15550)。

摘　　要：辽宁省瓦房店地区是我国重要的原生金刚石矿产地,自1971年发现金伯利岩以来已累计找到100多个金伯利岩体,提交了4个大型、1个中型原生金刚石矿床和3个近源小型金刚石砂矿床,探明的资源量占全国总资源量一半以上。区内的50号岩管是具有工业意义的大型原生矿床且已开发利用,因其金刚石宝石率高、晶型好、颜色净度俱佳、易加工而享誉世界。但50号岩管向下延深明显小于其他大型矿床的岩管深度。研究认为该岩管是被推覆构造截断了,其周边深部赋存有被截断的部分有待寻找。经过工作,证实了本区存在破坏金伯利岩体形态的逆冲推覆构造,在距离50号岩管1070m、地下近300m处找到了被错断的50号岩管的一部分,初步评价矿床规模达到中型,实现了隐伏矿找矿突破。The Wafangdian area in Liaoning province is an important primary diamond mining area in China.Since the discovery of kimberlite in this area in 1971,more than 100 kimberlite bodies have been found,and 4 large,1 medium-sized primary diamond deposits,and 3 near source small diamond sand deposits have been submitted.The discovered resources account for more than half of the national total.The No.50 rock pipe in the area is a large-scale primary deposit with industrial significance and has been developed and utilized.It is renowned worldwide for its high diamond gemstone rate,good crystal form,excellent color clarity,and easy processing.However,the downward extension depth of the No.50 rock pipe is significantly smaller than that of other large deposits.The study suggests that the rock pipe was cut off by a nappe structure,and there are parts of the surrounding deep that have been cut off that need to be searched for.After work,it has been confirmed that there is a reverse thrust nappe structure that damages the morphology of the kimberlite rock mass in this area.A part of the 50#rock pipe that was staggered was found at a distance of 1070m from the 50#rock pipe and nearly 300m underground.The preliminary evaluation shows that the scale of the deposit has reached a medium-sized level,achieving a breakthrough in hidden ore exploration.

关 键 词：瓦房店地区 原生金刚石矿 隐伏矿找矿 

分 类 号：P619.241[天文地球—矿床学]