| 张西君,田郁,刘俊,蒙应华,李家斌,屈念念,王中伟,杨邦友,李西子.黔中某地含铝岩系电性结构特征及三维可视化意义[J].贵州地质,2025,42(2):257-268 |
| 黔中某地含铝岩系电性结构特征及三维可视化意义 |
| The Electrical Structural Characteristics and 3D Visualization Study of Aluminum Bearing Rock Series in Central Guizhou |
| 投稿时间：2025-01-26 |
| DOI： |
| 中文关键词: 含铝岩系 电性结构 CSAMT 三维可视化 物探找矿标志 |
| 英文关键词:Aluminum bearing rock series Electrical structure CSAMT 3D visualization Geophysical prospecting indicators |
| 基金项目:贵州省地质矿产勘查开发局科研项目(编号:黔地矿科合〔2024〕4号)、贵州省找矿突破战略行动重大协调创新项目(编号:黔科合战略找矿〔2022〕ZD003)、贵州省基础研究计划项目(编号:黔科合基础-ZK〔2023〕一般194)联合资助 |
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| 中文摘要: |
| 在黔中遵义某地铝土矿探测中，以往传统找矿是地质＋钻探两种方法长期结合进行，成本高、工作效率低等各种影响不利因素多，现今是首先采取地质＋物探(CSAMT)两种方法，通过地表和深部探索，提取了与含铝岩系相关的隐伏古岩溶基底及顶底界面的异常特征，揭示了地下物质组成的电性结构呈三层式“中高阻—低阻—高阻”特征，后来经钻探工程验证，证实了目标地质体呈低阻层分布，说明该电法测量的方法技术是可行的，节约了时间成本，取得了较好的找矿成果。同时，在研究区建立了两种物探找矿电性标志层(即将低阻层区延伸带作为识别含铝岩系分布区和将低阻层区向下突出的局部“凹”型圈闭的低阻异常区视为岩溶负地形地貌典型变化区，如溶沟、洼地、漏斗等)，可以进一步确定隐伏目标地质体的电性结构组成性质及古岩溶基底上含铝岩系空间展布趋势，再则通过三维可视化技术，可以从多角度、全方位动态展示目标体地质体的电性异常特征，直观呈现不同属性参数在空间上的分布规律及变化趋势，使研究者能够交互式地观察和分析地质体电性特征的差异性表现。 |
| 英文摘要: |
| In the exploration of bauxite deposits in a certain area of Zunyi，Guizhou，traditional prospecting methods used to combine geology and drilling for a long time，which resulted in high costs and low work efficiency due to various unfavorable factorsNowadays，geology and geophysical exploration(CSAMT)methods are the first to be adoptedThrough surface and deep exploration，abnormal features of hidden ancient karst basement and top bottom interface related to aluminum bearing rock series are extracted，revealing that the electrical structure of underground material composition presents a three-layer “medium high resistance low resistance high resistance” characteristicLater，through drilling engineering verification，it was confirmed that the target geological body is distributed in low resistance layers，indicating that this electrical measurement method is feasible，saves time and cost，and achieves good prospecting resultsThe sentence is:At the same time，two geophysical indicators for mineral exploration and electrical properties have been established in the research area(ie，the low resistance layer extension zone is used to identify the distribution area of aluminum bearing rock series，and the low resistance anomaly zone with locally protruding “concave” traps in the low resistance layer area is regarded as a typical change area of karst negative topography，such as karst gullies，depressions，funnels，etc)，which can further determine the electrical structure composition and properties of the hidden target geological body and the spatial distribution trend of aluminum bearing rock series on the ancient karst basementFurthermore，through three-dimensional visualization technology，the electrical anomaly characteristics of the target geological body can be dynamically displayed from multiple angles and all directions，intuitively presenting the distribution rules and change trends of different attribute parameters in space，enabling researchers to interactively observeAnalyze the differential performance of electrical characteristics of geological bodies |
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