China Regional Geochemical Exploration Database

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. 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整合1:20万、1:50万比例尺区域地球化学勘查中39种元素及其氧化物测试数据的数据库，覆盖全国28个省（自治区、直辖市）。该库包含源自142万个采样点的近5540万条数据，涉及1:20万比例尺图幅1299幅、1:50万比例尺图幅18幅，是我国首个大型地球化学数据库。在此基础上，研究人员已编制完成地球化学图件4万余幅，建成空间数据库，可为地球化学研究与矿产资源预测提供丰富的地球化学信息。此项开创性工作对提升我国地球化学勘查与研究水平具有重要意义，可为全国范围内成矿元素区域地球化学分布、生态环境、基础地质研究以及矿产资源勘查提供最基础的数据支撑。

搜集汇总

背景与挑战

背景概述

中国区域地球化学勘探数据库整合了1:20万和1:50万比例尺下39种元素及其氧化物的测试数据，覆盖28个省份，包含5540万条数据和142万个数据点，是中国首个大规模地球化学数据库，为矿产预测和地球化学研究提供了基础数据支持。