哈密某铜镍矿富集区重力三维反演解释推断成果及功效  

Gravity 3D inversion interpretation and inference results of a copper-nickel deposit in Hami

作　　者：于淑莉 庞雨桐 王庆国 任乖雅 李飞 刘聪娟 YU Shu-li;PANG Yu-tong;WANG Qing-guo;REN Guai-ya;LI Fei;LIU Cong-juan(Shaanxi Geomineralization Exploration Team Co.,Ltd.,Xi'an 710043,China)

机构地区：[1]陕西地矿物化探队有限公司

出　　处：《世界有色金属》2019年第22期232-235,共4页World Nonferrous Metals

摘　　要：根据以往物化探及地质找矿成果,选取“预5区”进行三维解释推断。依据重力网格化数据结合地质找矿资料建立初始模型,设置2.5D反演宽度和反演剖面数量,逐条剖面进行2.5D反演。根据每条剖面2.5D反演结果,组合本区重力三维反演图。以此重力三维反演成果图为基础,编制三维地质矿产模型图,揭示基性-超基性岩体带空间展布特征;揭示中酸性花岗岩(花岗斑岩)空间形态及展布规律;划分出铜镍矿、钼矿富集成矿的有利部位,为进一步在该区取得找矿突破提供物探三维解释推断成果。Based on the results of previous geophysical and geochemical exploration and geological prospecting,the"pre-5 zone"was selected for 3D interpretation and inference.An initial model was established based on the gravity grid data and geological prospecting data.The 2.5D inversion width and the number of inversion profiles were set,and 2.5D inversion was performed on a profile-by-profile basis.According to the 2.5D inversion results of each section,the threedimensional gravity inversion map of this area is combined.Based on the three-dimensional gravity inversion results map,a three-dimensional geological and mineral model map was compiled to reveal the spatial distribution characteristics of basicultrabasic rock mass zones;the spatial morphology and distribution rules of medium-acid granite(granite porphyry);The favorable parts of the copper-nickel ore and molybdenum-rich ore deposits are divided to provide the results of geophysical three-dimensional interpretation and inference for further breakthroughs in prospecting in this area.

关 键 词：铜镍矿富集区 三维反演 推断成果 

分 类 号：P694[天文地球—地质学]