姜庆钱,毛荣威,赵正友,孙帮涛,周高明,吴鹏.云南省彝良县毛坪铅锌矿(化)带特征、分布规律与成矿模型[J].矿产勘查,2023,14(6):900-908 |
云南省彝良县毛坪铅锌矿(化)带特征、分布规律与成矿模型 |
Characteristics, distribution and mineral deposit model of Maoping lead zinc metallogenic belt in Yiliang County, Yunnan Province |
投稿时间:2021-11-10 修订日期:2022-02-21 |
DOI:10.20008/j.kckc.202306008 |
中文关键词: 毛坪铅锌矿 花苗寨背斜 叠加作用 |
英文关键词: Maoping lead zinc mine Huamiaozhai anticline superposition |
基金项目:本文受毛坪矿区VI号矿带铅锌成矿规律及找矿预测研究(驰宏矿冶研究院科技字(2021年第12号))资助。 |
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中文摘要: |
毛坪铅锌矿(化)带主矿区浅部资源已基本查明,深部及外围矿产勘查有待进一步加强。本文在收集矿化(带)前期研究成果及矿山近年勘查资料基础上,综合研究分析已查明矿(化)体特征、构造,矿(化)带所处花苗寨背斜被洛泽河断裂分为河东、河西矿段,其中河东在构造叠加作用下,西翼地层倒转陡倾形成走向、倾向均较大的斜列对称有利赋矿空间,推测已查明矿体深部斜对称部位及毛坪断裂切穿褶皱部位具有较好找矿潜力;河西背斜由北东向南西,构造由紧闭逐渐向开阔转变,西翼地层由直立变陡倾,叠加构造应力减弱,在水炉—红尖山矿段易形成小规模陡倾斜延续长、走向小的有利赋矿空间群,富集小矿体群,推测深部及毛坪断裂切穿褶皱部位具有较好找矿前景;姜家湾—猫鼻梁子矿段由于叠加构造应力减弱,地层变缓,重力阻碍作用增强,矿段浅部难以形成有利赋矿空间,但深部毛坪断裂切穿褶皱部位仍具有一定找矿前景。 |
英文摘要: |
The shallow resources of the main mining area of Maoping lead-zinc ore (chemical) belt have been basically identified, and the deep and peripheral mineral exploration needs to be further strengthened. On the basis of collecting the preliminary research results of the mineralization (zone) and the exploration data of the mine in recent years, this paper comprehensively studies and analyzes the characteristics and structure of the identified ore (chemical) body. The huamiaozhai anticline where the mineralization (chemical) zone is located is divided into Hedong and Hexi ore sections by Luozehe fault. Under the action of structural superposition, the strata in the West Wing of Hedong are inverted and steeply inclined to form the strike It is speculated that the deep oblique symmetry part of the ore body and the cutting fold part of Maoping fault have good prospecting potential; Hexi anticline changes from northeast to southwest, and the structure gradually changes from closed to open. The strata in the west wing change from upright to steep, and the superimposed tectonic stress is weakened. It is easy to form a small-scale steep inclined favorable ore bearing space group with long continuation and small strike in Shuilu hongjianshan ore section, and enrich small ore body groups. It is speculated that the deep and Maoping fault cut through the fold has a good prospecting prospect; In jiangjiawan maobiliangzi ore block, due to the weakening of superimposed tectonic stress, the slowing down of stratum and the enhancement of gravity obstruction, it is difficult to form a favorable ore bearing space in the shallow part of the ore block, but the deep Maoping fault cutting through the fold still has a certain prospecting prospect. |
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