区域成矿空间数据模型研究

发布时间：2018-03-26 18:11

本文选题：空间数据模型　切入点：区域成矿　出处：《新疆大学》2017年硕士论文

【摘要】：随计算机和网络等硬件飞速发展,现代空间信息技术在21世纪全面进入一个全新的状态。以区域成矿空间数据模型为研究目标,建立多视角的空间数模型和基于空间数据库的图件生成和表达模型;将“理论研究的逻辑化、结构化”和“空间数据模型的逻辑化、结构化”进行匹配,以用于作为研究的核心支撑条件,同时优化研究成果,为空间数据库的建立提供基础。研究初期在ArcGIS平台下,将1:25万地质数据及地球化学数据建立空间数据库,该数据库包含逻辑模型与物理模型两个层次,其要点主要包括四个方面:(1)要素类和对象类围绕研究目标保持一致性和系统性;(2)理论研究成果限定对象类和关系类的内容;(3)要素类保持客观简明、对象类和关系类体现主观开放;(4)图层对要素类和对象类内容进行多视角表达。本文依据研究区矿产资源特点,选取砂岩型铜矿矿床模型作为典型矿床模型研究,通过总结研究区内砂岩型铜矿矿床描述模型,将空间数据库中相关信息进行提取,并对符合该矿床描述模型进行空间分析,将得到的数据按照成矿要素的相关性进行加权值分配,最终将得到的成矿区域按照加权值分为:1.4-1.8为1级,对应不利于该类型矿床成矿的区域,1.8-3.0为III级成矿区域,3.0-4.2为II级成矿区域,4.2-5为I级成矿区域。
[Abstract]:With the rapid development of hardware such as computer and network, modern spatial information technology has entered a new state in the 21st century. A multi-view spatial number model and a map generation and representation model based on spatial database are established, and "logical, structured" and "logical, structured" of spatial data model are matched. It is used as the core supporting condition of the research, and the research results are optimized to provide the foundation for the establishment of the spatial database. In the early stage of the research, 1: 25 million geological data and geochemical data are used to establish the spatial database under the ArcGIS platform. The database consists of two levels: logical model and physical model. Its main points include four aspects: 1) keeping consistency and systematicness around the research objective and the object class) keeping objective and concise the content of object class and relation class. The object class and the relation class embody the subjective open layer. The element class and the object class content are expressed from many angles of view. According to the characteristics of mineral resources in the study area, the sandstone-type copper deposit model is selected as the typical deposit model in this paper. By summarizing the description model of sandstone copper deposit in the study area, extracting the relevant information from the spatial database, and analyzing the corresponding description model of the deposit, The data will be distributed according to the correlation of ore-forming elements, and the ore-forming area will be divided into 1: 1.4-1.8 according to the weighted value. Corresponding to the ore forming area of this type of ore deposit, 1.8-3.0 is the III metallogenic area and 3.0-4.2 is the second-grade metallogenic area, and 4.2-5 is the I-grade metallogenic area.
【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】：P208;P618.41

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