煤系共伴生战略性金属的分布规律和赋存机制数据集

煤系共伴生战略性金属具有成矿机制复杂、赋存状态多样等特点，对其分布规律与富集机理的深入研究是实现资源有效评价与利用的前提。针对上述基础地质问题，项目开展了山西晋城及内蒙古大青山典型煤田中战略性金属的矿物学与地球化学特征研究，揭示了多种战略性金属在煤系地层中的分布规律和赋存机制。数据集系统汇集了山西晋城煤田太原组15号煤中U-Re-Se-Mo、山西组3号煤中Li、Ga以及内蒙古大青山煤田大炭壕煤矿中Nb-Ta-Zr-Hf-REE等煤系战略性金属的实验测试数据，主要包括：煤的工业分析数据（水分、灰分、挥发分等）、煤岩学与矿物学定量数据、常量元素氧化物与微量元素含量数据、带能谱扫描电镜（SEM-EDS）矿物赋存特征数据以及飞行时间二次离子质谱（ToF-SIMS）获取抛光薄片选定区域的特定元素（Al、Si、Li、Fe、Mg和Na）离子图像数据。数据采集时间为2021年12月至2025年11月，采集地点在中国矿业大学（北京）煤炭精细勘探与智能开发全国重点实验室及国家大型科学仪器中心-北京电子能谱中心等试验基地。数据集中涉及的样品数据由现场系统取样后经实验室分析产生，通过标准煤质分析、无机地球化学测试及先进微区分析技术等方法获取。所有测试过程均严格依据相关测试规范及操作流程，数据真实可靠。本数据集总体数据量为16.5 MB。Strategic metals co-occurring in coal measures are characterized by complex metallogenic mechanisms and diverse occurrence states. In-depth research on their distribution rules and enrichment mechanisms is a prerequisite for realizing the effective evaluation and utilization of such resources. To address these fundamental geological issues, the project conducted studies on the mineralogical and geochemical characteristics of strategic metals in the typical coalfields of Jincheng (Shanxi Province) and Daqingshan (Inner Mongolia Autonomous Region), revealing the distribution rules and occurrence mechanisms of various strategic metals in coal measure strata. This dataset systematically collects experimental test data of strategic metals in coal measures, including U-Re-Se-Mo in No.15 coal seam of the Taiyuan Formation, Li and Ga in No.3 coal seam of the Shanxi Formation from Jincheng Coalfield, as well as Nb-Ta-Zr-Hf-REE in Datanhao Coal Mine of Daqingshan Coalfield. The main data types are as follows: proximate analysis data of coal (moisture, ash, volatile matter, etc.), quantitative coal petrological and mineralogical data, content data of major element oxides and trace elements, mineral occurrence characteristic data obtained via scanning electron microscope with energy-dispersive X-ray spectroscopy (SEM-EDS), and ion image data of specific elements (Al, Si, Li, Fe, Mg and Na) in selected regions of polished thin sections acquired via time-of-flight secondary ion mass spectrometry (ToF-SIMS). The data were collected from December 2021 to November 2025 at test bases including the State Key Laboratory of Coal Precise Exploration and Intelligent Development of China University of Mining and Technology (Beijing) and the National Large-scale Scientific Instrument Center - Beijing Electronic Spectroscopy Center. The sample data included in this dataset are generated through laboratory analysis after systematic on-site sampling, and obtained via methods such as standard coal quality analysis, inorganic geochemical testing and advanced micro-area analysis techniques. All testing procedures strictly follow relevant test specifications and operating procedures, ensuring the authenticity and reliability of the data. The total size of this dataset is 16.5 MB.

搜集汇总

背景与挑战

背景概述

该数据集聚焦煤系共伴生战略性金属的分布规律和赋存机制，汇集了山西晋城和内蒙古大青山煤田的煤样实验数据，包括工业分析、地球化学测试和微区分析结果。数据采集于2021年12月至2025年11月，总量为16.5 MB，旨在支持资源评价与利用研究。