The Spatial Database of the 1:5000000 International Geological Map of Asia

The 1:5000000 International Geological Map of Asia (IGMA5000) under the aegis of the Commission for the Geological Map of the World (CGMW) is a cooperative project which involves more than 100 geologists from 4 subcommissions of CGMW as well as geological surveys and institutions of 20 Asian and European countries. IGMA5000 is the first digital Asian geological map built on the ArcGIS platform and compiled in accordance with international standards and also the first map that displays the off-shore and on-shore geology within the map area, and therefore the compilation of the map is extremely arduous and challenging. The map area covers whole Asia and its adjacent regions from the Alps in the west to the Mariana Trench in the east, and from the Arctic Ocean in the north to the Java Trench in the south. The amount of data in the spatial database is 2.14 GB. The paper introduced the basic construction of ICMA5000. Its successful completion will surely lay a solid foundation for researches on the tectonics, metallogeny, resources and geological environment of Asia.

由世界地质图委员会（Commission for the Geological Map of the World，CGMW）牵头的1:500万亚洲国际地质图（International Geological Map of Asia，IGMA5000）是一项国际合作项目，汇聚了来自CGMW下属4个分会以及20个亚欧国家地质调查机构与科研院所的百余名地质学者。IGMA5000是首款基于ArcGIS平台构建、遵循国际标准编制的数字化亚洲地质图，同时也是首张完整覆盖研究区海陆全域地质情况的地图，因此其编制工作极具艰巨性与挑战性。该地图的研究范围覆盖亚洲全域及周边区域，西至阿尔卑斯山脉、东达马里亚纳海沟，北起北冰洋、南抵爪哇海沟。其空间数据库的数据容量达2.14 GB。本文介绍了IGMA5000的基本架构。该图的成功编制将为亚洲构造地质学、成矿作用、资源开发与地质环境等领域的研究奠定坚实基础。

搜集汇总

背景与挑战

背景概述

该数据集是1:5000000比例尺的亚洲国际地质图空间数据库，由国际地质图委员会协调，多国地质学家合作完成，是首个基于ArcGIS平台、符合国际标准的数字亚洲地质图，覆盖陆地和海洋地质信息。数据库大小为2.14 GB，范围涵盖整个亚洲及周边地区，用于支持构造、成矿和资源等地质研究。