青藏高原成矿规律数据集（2021.11-2024.10）

青藏高原成矿规律数据库范围覆盖全区，内容涵盖区内成矿域、成矿省、成矿带的空间划分和完善的地球动力学背景及岩石建造组合的划分以及构造运动期的划分，大宗金属矿产的种类、规模、空间分布和成因类型等信息。其中新生代为铜成矿高峰期，碰撞后伸展阶段；铅锌成矿多集中于晚中生代-新生代，与陆内伸展和热液活动相关；冈底斯西段富铜钼，玉龙-哀牢山多铜金，从雅鲁藏布江缝合带向北，成矿类型由斑岩型铜矿渐变为矽卡岩型铅锌矿。数据主要基于域内各地质调查部门地质图（1:100万）；矿产数据主要源于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、矿产相关论文论著。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。包括：①矢量化，基于前述资料按我国相关规范要求的比例尺精度进行矢量化工作；②拓扑处理，消除拓扑错误；③完善要素属性结构和要素属性内容；④结合青藏高原研究成果和认识，对空间数据进行了持续修改和完善。主要服务于青藏高原成矿规律图（1:150万）编制，综合数据库内容和区域构造演化与成矿动力学分析，为资源预测和勘查靶区圈定提供科学依据。

The metallogenic regularity database of the Qinghai-Tibet Plateau covers the entire region. Its contents include the spatial division of metallogenic domains, metallogenic provinces and metallogenic belts, as well as the division of comprehensive geodynamic settings, rock assemblages and tectonic periods, alongside information on the types, scales, spatial distributions and genetic types of bulk metallic minerals.

Specifically, the Cenozoic era represents the peak period of copper mineralization during the post-collisional extensional stage. Lead-zinc mineralization is predominantly concentrated in the Late Mesozoic to Cenozoic periods, which is associated with intracontinental extension and hydrothermal activities. The western segment of the Gangdise belt is rich in copper and molybdenum deposits, while the Yulong-Ailaoshan area is dominated by copper-gold deposits. From the Yarlung Zangbo Suture Zone northwards, the metallogenic types gradually transition from porphyry copper deposits to skarn lead-zinc deposits.

The database is primarily developed based on 1:1,000,000 scale geological maps from various regional geological survey departments. Mineral data mainly originates from the results of the National Mineral Resource Potential Evaluation Project (2012), relevant datasets from regional geological survey institutions, and academic papers and monographs related to mineral resources.

The database has undergone editing, processing, supplementation and improvement in terms of spatial accuracy, logical consistency and data integrity, including the following steps: ① Vectorization: Conduct vectorization work in accordance with the scale accuracy requirements stipulated by relevant Chinese specifications based on the aforementioned source materials; ② Topological processing: Eliminate topological errors; ③ Refine the attribute structure and attribute content of spatial features; ④ Continuously modify and optimize spatial data by integrating existing research findings and understandings of the Qinghai-Tibet Plateau.

This database is mainly developed to support the compilation of the 1:1,500,000 scale Metallogenic Regularity Map of the Qinghai-Tibet Plateau. By integrating the database contents, regional tectonic evolution and metallodynamic analysis, it provides scientific foundations for resource prediction and the delineation of exploration targets.

搜集汇总

背景与挑战

背景概述

该数据集覆盖青藏高原全区，详细记录了成矿域、成矿带的空间划分、地球动力学背景及大宗金属矿产的种类、规模、分布和成因类型，数据来源于地质调查和矿产资源潜力评价项目，经过专业处理和完善，主要用于成矿规律图编制和资源预测。