新疆温泉县扎冷木特一带1：5万区域地质调查遥感技术应用

发布时间：2018-01-23 12:03

本文关键词： 扎冷木特 SPOT6影像蚀变信息 DEM高程数据　出处：《新疆大学》2017年硕士论文　论文类型：学位论文

【摘要】：扎冷木特位于新疆西天山西北角,北邻哈萨克斯坦,其行政区划属于博尔塔拉蒙古族自治州温泉县,范围西起察哈乌苏河,东至温泉县城附近;南起布尔嘎斯特河,北至中国-哈萨克斯坦国境线。本文用SPOT6遥感影像来完成遥感地质解译部分,用OLI影像完成蚀变信息提取部分,利用ENVI、ArcGis、MapGis、ERDAS、PCI等软件进行图像处理,运用DEM高程数据与遥感影像叠加生成三维立体模型能够更加直观的解译研究区的断裂、环形构造等。本论文获得以下主要成果:1.以SPOT6卫星数据为主要信息源,结合OLI卫星图像,建立了工作区地层、构造、侵入岩的解译标志,编制了1:5万遥感地质解译图。2.针对调查区的蚀变类型,分别进行了铁染、羟基提取方法、遥感异常专题图像的变量确定、遥感异常的定量分级分析的专题研究。统计了羟基、铁然的分布及其与地层、构造的空间关系,并根据异常的类型和分布规律,进行异常的分区分类,编制了调查区区1:5万铁染、羟基异常分布图。3.通过地质分析得出,该有利区内主要出露地层有温泉岩群:云母片岩、黑云角闪岩等,区内岩浆活动强烈,既是本区铁矿床的容矿层,又是提供铁等成矿物质的矿源层;有利区内有一近EW断层是含矿热液迁移活动的通道,又是铁等成矿物质沉淀定位的有利容矿空间且有利区附近南部有典型矿床托克赛铅锌矿,羟基、铁染异常与矿化关系密切,为本区较明显的找矿标志。4.分析总结遥感矿化蚀变异常与容矿地层、断裂带、侵入岩体、脉岩的配置关系,并结合异常内矿(化)点的类型,指出在羟基、铁染异常晕具有一定的找矿指导意义。5.在工作区划分3个预测成矿远景区,编制了工作区1:5万遥感成矿综合预测图。为下一步地质矿产勘查指明了方向。
[Abstract]:Zhalanmute is located in the northwest corner of the Western Tianshan Mountains in Xinjiang, near Kazakhstan to the north. Its administrative division belongs to the Wenquan County of Bortala Mongol Autonomous Prefecture, which ranges from the Chahawusu River in the west to the City near the Wenquan County in the east. The SPOT6 remote sensing image is used to complete the remote sensing geological interpretation part, and the OLI image is used to complete the alteration information extraction part. The image processing is carried out by using the software of ENVII, ArcGis-MapGIS, ERDAS-PCI and so on. Using DEM elevation data and remote sensing image superposition to generate three-dimensional model can more intuitively interpret the fracture of the study area. The main achievements of this paper are as follows: 1. Taking the SPOT6 satellite data as the main information source and combining with the OLI satellite images, the interpretation marks of strata, structures and intrusive rocks in the working area are established. 1: 50 000 remote sensing geological interpretation map. 2. According to the alteration type of the survey area, iron stain, hydroxyl extraction method and variable determination of the remote sensing anomaly image are carried out respectively. The distribution of hydroxyl groups and irons and their spatial relationships with strata and structures are analyzed. The regional classification of anomalies is carried out according to the types and distribution of anomalies. The map of anomalous distribution of hydroxyl groups in the investigation area of 1: 50 000 iron stain is compiled. 3. Through geological analysis, it is concluded that there are mainly spa rocks in this favorable area, such as mica schist, black cloud amphibolite and so on. The magmatic activity in the area is strong, which is not only the ore-bearing bed of the iron deposit in this area, but also the source bed of iron and other ore-forming materials. A near EW fault is a channel for hydrothermal migration of ore-bearing minerals, and it is also a favorable ore-bearing space for the precipitation of iron and other ore-forming minerals. In the southern part of the favorable area, there is a typical Tocesse lead-zinc deposit, hydroxyl group. The iron-dye anomaly is closely related to mineralization, which is the obvious ore-prospecting marker in this area. 4. The relationship between remote sensing mineralization alteration anomaly and ore-bearing strata, fault zone, intrusive rock mass and dike rock is analyzed and summarized. Combined with the types of abnormal inner ore (chemical) points, it is pointed out that in hydroxyl group, iron-stained abnormal halo has certain guiding significance for prospecting. The 1: 50 000 remote sensing metallogenic comprehensive prediction map of the working area is compiled, which points out the direction for the next geological and mineral exploration.
【学位授予单位】：新疆大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P627

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