摘要
云南彝良县毛坪铅锌矿位于花苗寨背斜北段,矿区在区域构造挤压应力由北西向逐渐向北北东-南南西向转变的同时,由于构造应力持续叠加作用,最大主应力在背斜北东端向南西端依次表现为压应力、剪应力、张应力,形成北段背斜绕曲向南西深部延伸呈阶梯状收缩的有利赋矿空间,与矿区已探矿矿体赋存状态相吻合,表明背斜北段绕曲向南西延伸深部仍具有较好的找矿前景。
Maoping Pb-Zn deposit in Yiliang,Yunnan is in the N part of Huamiaozhai anticline.In the orefield,because of the continuous superimposition of structure stress,the maxim principle stress shows successively pressure stress,shear stress and tensile stress from NE to SW end while the regional compression stress changes progressively from NW to NNE-SSW,so that the N part anticline distorsion extends deep SW-towards,forming the advantageous stairs contraction ore-bearing space,consistent with the occurrence of explored orebody in the orefield,which shows there is the good prospecting potentiality in the N part anticline distorsion extends deep SW-towards.
作者
姜庆钱
孙帮涛
赵正友
JIANG Qing-qian;SUN Bang-tao;ZHAO Zheng-you(Yiliang Chihang Mining Company(Ltd),Yiliang 657600)
出处
《云南地质》
2021年第3期281-286,共6页
Yunnan Geology
关键词
构造变形
构造叠加
找矿前景
云南彝良毛坪
Structure Deformation
Structure Superimposition
Prospecting Potentiality
Maoping,Yiliang,Yunnan
