全国区域化探数据库

China Regional Geochemical Exploration Database is the first one of its kind that synthesizes the testing data of 39 elements and their oxides from the regional geochemical exploration respectively at scales of 1:200, 000 and 1:500, 000, covering 28 provinces (autonomous regions and municipalities directly under the central government). It features nearly 55.4 million pieces of data collected from 1.42 million data points. The data involves 1, 299 map sheets at scale of 1:200, 000 and 18 map sheets at 1:500, 000. It is China's first massive geochemistry database. The national mineral resources potential evaluation project updated the database, making the national geochemical exploration database cover over 1.47 million records of aggregated data, with the data reaching 63.21 million records. On this basis, more than 40, 000 geochemical maps have been compiled, and a spatial database has been established to provide rich geochemical information for carrying out geochemistry research and predicting mineral resources. This pioneering work is of great significance to improve the level of geochemical exploration and research in China. It provides the most fundamental data for studying regional geochemical distribution of metallogenic elements, ecological environment, and basic geology, as well as for mineral resources prospecting throughout China.

中国区域地球化学勘查数据库是国内首个同类数据库，系统整合了比例尺分别为1:20万和1:50万的区域地球化学勘查中39种元素及其氧化物的测试数据，覆盖全国28个省、自治区、直辖市。该数据库收录了来自142万个采样点位的近5540万条数据，所涉图幅包含1299幅1:20万比例尺图幅以及18幅1:50万比例尺图幅，是我国首个大型地球化学数据库。依托全国矿产资源潜力评价项目对该数据库进行升级更新后，全国地球化学勘查数据库的聚合数据记录量突破147万条，总数据量达6321万条。在此基础上，科研团队已编制完成四万余幅地球化学图件，并构建了配套空间数据库，可为地球化学研究、矿产资源预测等工作提供丰富的地球化学信息支撑。这项开创性工作对于提升我国地球化学勘查与研究水平具有重要意义，可为全国范围内的成矿元素区域地球化学分布研究、生态环境研究、基础地质研究以及矿产资源勘查提供核心基础数据支撑。