云南水果庙铅锌矿髙精度磁测可行性研究 作者简介:姓名刘振雄性别男1983年03月生,师从成都理工大学李才 明教授,2013年07月毕业于成都理工大学固体地球物理学专业,获得理学硕士 学位。 摘要 磁法勘探是观测研究地下介质磁场变化的一种地球物理勘探方法。根据测得 的磁场变化寻找具有磁性异常的岩矿体、埋设物体等。目前磁法勘探在区域地质 调查、磁铁矿勘查、寻找地下热源、含水破碎带、地下金属管线、地下电缆、地 下未爆炸弹、废弃金属障碍物、沉船、古代冶炼及制陶窑遗址、居民区的烧火坑 遗迹和其它带有磁性的埋藏文物(如铁器、陶制品)等方面应用十分广泛。 磁法勘探不仅仅只局限于对含有磁性矿体有很好的勘探效果,而且对其他金 属及非金属矿矿产勘探中也能取得好的效果。对没有磁性矿体是通过间接方法来 实现找矿的目的。 云南铅锌矿产资源丰富,位具全国之首,本报告以参与云南水果庙找铅锌矿 项目,根据磁测资料可以圈定侵入岩体,研究侵入岩体形状、产状、岩相和蚀变 带等;可以确定裂隙和褶皱构造、划分不同岩性区。利用磁测资料对控矿因素的 分析结果,再结合地质资料和区内的矿点、矿化点、矿化带、矿床等各种找矿标 志(包括各种物化探异常在内)进行综合研究,圈定出成矿远景区 结合实际地质特征进制定可行性的施工方案,包括实际勘探的野外测线布 置、数据采集整理和室内数据处理;通过Surfer、mappik等软件对数据进行分析 处理后,对研究区域的磁异常,进行定性和定量解释等综合物探研究方法,根据 磁异常AT延拓前后的平剖图及平面等值线图等成果图件,结合地质资料分析研 究区内含铅矿侵蚀岩体的分布范围,形态产状等,初步判断含矿岩体内是否存在 铅锌矿化相关磁异常。成功将高精度磁法应用到勘探铅锌矿中。 关键字:磁法磁异常异常解释铅锌矿 I Abstract Feasibility Research of lead-zinc mine by high-precision magnetic survey in fruit temple of Yunnan Introduction of the author: Liu Zhenxiong, male,was born in March, 1983 whose tutor was Professor Li Caiming. He graduated from Chengdu University of Technology in science major and was granted the Master Degree in June,2013. Abstract Observation of magnetic prospecting is a magnetic field changes subsurface geophysical exploration methods. The measured change in magnetic field with magnetic anomalies find ore body,laying objects,etc. Currently magnetic prospecting geological survey in the area, magnetite exploration, find underground heat, moisture broken belt,underground metal pipes, underground cables, underground unexploded bombs,scrap metal obstructions, wrecks,ancient smelting and manufacturing kiln ruins, residents burning fire pit area remains and other artifacts buried with magnetic (egiron, ceramics) and other aspects of the application is very extensive. Magnetic exploration not just limited to the containing magnetic ore exploration has good results, but also for other metals and non-metallic mineral mineral exploration can achieve good results. The absence of magnetic ore body is through indirect methods to achieve the purpose of prospecting. Magnetic survey data can be delineated according to intrusions, intrusive body shape research, occurrence, petrographic and alteration zones, etc.; cracks and folds can be determined, divided into different lithological zones. The use of magnetic data on the results of the analysis ore-controlling factors,combined with geological data and the district mines,mineralization, mineralized zones, mineral prospecting and other signs (including various geophysical and geochemical anomalies included) for comprehensive study delineated prospects in Combined with the actual geological features into the feasibility of developing the implementation plan, including the actual exploration of the field survey line layout,data acquisition and indoor data processing collation; through Surfer,mappik other software for data analysis processing, the study of regional magnetic anomalies, for qualitative and quantitative interpretation of integrated geophysical research III 成都理工大学硕士学位报告 methods,according to the magnetic anomaly AT extension before and after the orthographic drawings and planar contour maps and other achievements, combined with geological data analysis in the study area containing galena eroded rock distribution, morphology occurrence, etc.,to determine the initial ore body containing the existence of lead-zinc mineralization associated magnetic anomalies. Successfully applied to high-precision magnetic exploration lead-zinc. Keywordstmagnetic anomaly interpreted magnetic anomalies lead and zinc IV 目录 目录 m w I Abstract Ill 第i章引言 1 l.i选题背景及依据 1 1.2选题目的及意义 2 1.3 国内外研究概况 3 1.4研究内容及方法 8 1.4.1磁异常对铅锌矿的圈定依据 8 1.4.2研究ft容 8 1.4.3研究方法 9 1.5 主要认识成果 10 第2章研究区域概况及地质地球物理特征 11 2.1研究区域概况 11 2.1.1以往地质工作情况 12 2.2区域地质简况 12 2.3矿区地质特征 13 2.4 地球物理特征 15 第3章磁异常解释与推断 17 3.1磁异常总体分布特征 17 3.2物探综合研究 24 3.3本区域磁异常定性解释 24 3.4磁异常定量解释 25 3.5异常地质解 25 第4章激电方法验证 27 4.1电异常分布特征及解释推断 27 ^ it 35 m ■ 36