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投稿时间:2018-06-11 修订日期:2018-07-05
投稿时间:2018-06-11 修订日期:2018-07-05
中文摘要: 放羊山Pb-Zn-Cu多金属矿床位于滇西保山地块南段,镇康复背斜南倾伏端芦子园矿集区内,是该矿集区近年来首个发现的以富铜为特征的铅锌多金属矿床。本文以放羊山矿床为研究对象,从放羊山矿区地层、构造、岩浆岩等矿区地质特征入手,详细研究了放羊山矿床矿体的产出分布、矿石组构及围岩蚀变等矿床地质特征,并将该矿床的成矿作用过程划分为热液期、叠加改造期和表生期。综合区域地质背景及矿床地质特征分析认为该矿床的形成受地层、岩性、构造和隐伏岩浆岩共同制约,为印支—燕山期强烈的挤压碰撞,地层强烈弯曲变形的构造背景下,深部隐伏岩浆出溶,含矿流体沿弯滑褶皱作用所引发的有利部位(如泥岩与灰岩的分界面等产生强烈的破碎变形部位)萃取、运移、汇聚并卸载成矿。属中温热液Pb-Zn- Cu多金属矿床,并被后期构造运动叠加改造。
Abstract:The Fangyangshan Pb-Zn-Cu polymetallic deposit is located in the south section of the Baoshan massif in the western Yunnan, and it is in the Luziyuan ore-concentration area of the southern tilting of Zhenkang anticlinorium. It is the first copper-rich lead-zinc polymetallic deposit discovered in recent years. In this paper, we take the Fangyangshan deposit as the research object , Starting from the geological characteristics of the strata, structures and magmatic rocks in FangYangShang deposit, then study the geological characteristics in ore body distribution and output characteristics, ore fabric characteristics ,wall rock alteration in detail and divide the metallogenic process into hydrothermal period, superimposed transformation period and epigenetic period. Based on the analysis of the regional geological background and the geological characteristics of the deposit, it is considered that the formation of the deposit is controlled by strata, lithology, tectonics and concealed magmatic rocks. Under the tectonic background of strong collision and strong bending deformation of strata in Indosinian—Yanshanian period, the deep concealed magma dissolved and ore-bearing fluid extracted, transported, converged and unloaded along the favorable sites (For example, the interface between mudstone and limestone that produces strong crushing and deforming parts.) caused by the flexural-slip fold. It belongs to the mesothermal hydrothermal Pb-Zn-Cu polymetallic deposit and was superimposed by late tectonic movement.
keywords: Luziyuan ore-concentrated area the Fangyangshan polymetallic deposit geological characteristics genesis of ore deposit mesothermal deposit
文章编号: 中图分类号: 文献标志码:
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
作者 | 单位 | |
耿齐卫 | 昆明理工大学 | 15887087459@139.com |
刘凤祥* | 云南省核工业二〇九地质大队 | 1622423689@qq.com |
周坤 | 云南省地质调查院 | |
邓明国 | 昆明理工大学 国土资源工程学院 昆明6500 | |
陈伟 | 昆明理工大学 国土资源工程学院 昆明6500 |
Author Name | Affiliation | |
Geng QI Wei | Kunming University of science and technology | 15887087459@139.com |
liu feng xiang | 1622423689@qq.com | |
周坤 | ||
邓明国 | ||
陈伟 |
引用文本:
耿齐卫,刘凤祥,周坤,邓明国,陈伟.滇西镇康放羊山Pb-Zn-Cu多金属矿床地质特征及成因初探[J].有色金属(矿山部分),2018,70(6):63-69.
Geng QI Wei,liu feng xiang,周坤,邓明国,陈伟.Geological characteristics and genesis of Fangyangshan Pb-Zn-Cu polymetallic deposit in Zhenkang, western Yunnan[J].NONFERROUS METALS(Mining Section),2018,70(6):63-69.
耿齐卫,刘凤祥,周坤,邓明国,陈伟.滇西镇康放羊山Pb-Zn-Cu多金属矿床地质特征及成因初探[J].有色金属(矿山部分),2018,70(6):63-69.
Geng QI Wei,liu feng xiang,周坤,邓明国,陈伟.Geological characteristics and genesis of Fangyangshan Pb-Zn-Cu polymetallic deposit in Zhenkang, western Yunnan[J].NONFERROUS METALS(Mining Section),2018,70(6):63-69.