喀喇昆仑-西昆仑地质矿产数据集（2021.11-2024.10）

本数据库包含空间范围：西昆仑西北缘（含喀喇昆仑）、西昆仑中部、西昆仑东南缘。数据内容为：①1:25万地质数据集（地质体和构造）；②大宗金属矿产数据集（超大型、大型、中型、小型矿床及矿点）；主要图件有：西昆仑西北缘铁锰铅锌矿集区地质矿产图（1:25万）、西昆仑中部铁锰铅锌矿集区地质矿产图（1:25万）、西昆仑东南缘铁锰铅锌矿集区地质矿产图（1:25万）。空间数据库采用ArcGIS平台，可为区域成矿规律研究、资源潜力评估、战略远景区圈定以及各类专题图件编制提供基础数据支撑。数据库格式为文件数据库（.GDB），图件包括工程文件（MXD）和栅格图（JPG），也可根据需要生成各类常见图形格式（PDF、TIF、EPS等）。地质矿产数据坐标系为Xian 1980 GK Zone 13，采用高斯-克吕格投影。数据来源及加工方法：基础地质数据主要来源于域内各地质调查部门地质图（1:20万）；②矿产数据主要来源包括全国矿产资源潜力评价项目成果（2012）、域内各地质调查部门相关资料数据、域内矿产相关论文论著。此外，为满足各类数据修改及完善，大量采用遥感数据，具体包括：ETM+、OLI、ASTER、Worldview等影像数据以及90m、30米、12.5mDEM数据等。数据质量描述：为满足青藏高原区域成矿规律研究、地质矿产图和成矿预测图编制需要，在数据空间准确性、逻辑一致性和数据完整性方面进行编辑、处理以及补充完善。具体包括：①矢量化，基于前述资料进行了大量矢量化工作，用于补充数字资料缺失区域，同时根据资料更新程度合并、分割面要素和线要素，矢量化按照我国相关规范要求比例尺精度要求下完成；②拓扑处理，消除重叠面、空区等拓扑错误；③完善要素属性结构和补充要素属性内容，围绕区域成矿规律研究、地质矿产图和成矿预测图编制目标，依据我国相关规范，结合具体资料和数据内容，建立了相应数据模型，完善了地质体、构造、矿产要素类属性结构并完成了相应属性的填写工作；④基于以上数据处理内容，结合青藏高原研究成果和最新认识，对区内相关地质内容进行了进一步修改和完善。数据应用成果及前景：1:25万地质矿产图，以及岩性、地质年代、地层分区等信息交互提取、分析及专题图件编制。

This database covers the following spatial areas: the northwestern margin of the West Kunlun Mountains (including the Karakoram), the central part of the West Kunlun Mountains, and the southeastern margin of the West Kunlun Mountains. The data contents include: ① 1:250,000 geological dataset (geological bodies and structures); ② Bulk metal mineral resource dataset (super-large, large, medium, small deposits and mineral occurrences). The main maps are as follows: 1:250,000 geological and mineral maps of the iron-manganese-lead-zinc ore concentration areas on the northwestern margin, central part, and southeastern margin of the West Kunlun Mountains respectively.

The spatial database is developed on the ArcGIS platform, which can provide basic data support for regional metallogenic regularity research, resource potential assessment, strategic prospective area delineation, and compilation of various thematic maps. The database is in File Geodatabase (.GDB) format. The maps include project files (.MXD) and raster graphics (JPG), and various common graphic formats (PDF, TIF, EPS, etc.) can also be generated as needed. The coordinate system of the geological and mineral data is Xian 1980 Gauss-Kruger Zone 13, adopting the Gauss-Kruger projection.

Data sources and processing methods: ① Basic geological data are mainly derived from 1:200,000 geological maps produced by various geological survey departments within the study area; ② Mineral data mainly come from the results of the National Mineral Resource Potential Assessment Project (2012), relevant data from various geological survey departments within the study area, and academic papers and monographs related to minerals in the region. In addition, to modify and improve various datasets, a large number of remote sensing data are utilized, including image data such as ETM+, OLI, ASTER, and Worldview, as well as 90m, 30m, and 12.5m Digital Elevation Model (DEM) data.

Data quality description: To meet the requirements of studying regional metallogenic regularity in the Qinghai-Tibet Plateau, and compiling geological and mineral maps as well as metallogenic prediction maps, editing, processing, and supplementary improvements have been conducted in terms of data spatial accuracy, logical consistency, and data integrity. The specific work includes: ① Vectorization: A large number of vectorization tasks were carried out based on the aforementioned materials to supplement areas lacking digital data. Meanwhile, polygon and line features were merged and split according to the update status of the materials. The vectorization work was completed in compliance with the scale accuracy requirements specified in relevant Chinese national standards; ② Topology processing: Topological errors such as overlapping polygons and void areas have been eliminated; ③ Attribute schema improvement and attribute supplementation: Centering on the goals of regional metallogenic regularity research, geological and mineral map compilation, and metallogenic prediction map compilation, and in accordance with relevant Chinese national standards, combined with specific materials and data contents, the corresponding data model was established. The attribute schemas of geological body, structure, and mineral feature classes were improved, and the corresponding attribute filling work was completed; ④ Further revision of relevant geological contents: Based on the above data processing contents, combined with the research results and latest understandings of the Qinghai-Tibet Plateau, relevant geological contents in the study area were further modified and improved.

Data application achievements and prospects: The 1:250,000 geological and mineral maps, as well as the interactive extraction, analysis, and thematic map compilation of information such as lithology, geological age, and stratigraphic division.

搜集汇总

背景与挑战

背景概述

该数据集涵盖喀喇昆仑-西昆仑地区2021-2024年的地质矿产信息，包括1:25万比例尺的地质构造和大宗金属矿产数据，适用于区域成矿规律研究和资源评估。数据以ArcGIS格式存储，支持多种图形输出格式。