非洲地区1∶500万遥感地质解译数据集

Basing on the analysis results of existing geological and mineral data and the methods of computer technology and GIS technology, we completed 1: 5,000,000 remote sensing geological interpretation in Africa with about 30.2 million km2 in area. And the data set used in this work is taking Landsat-7 ETM+ data as main data resource. The geological elements, such as strata, volcanic rocks, intermediate acid intrusive rocks, basic rocks or ultrabasic rocks, linear structures and ring structures which are closely related to mineralization was extracted, and 7 important metallogenic belts were divided. The data set with the Landsat-7 ETM+ remote sensing image in Africa, the 1: 5,000,000 remote sensing geological interpretation map in Africa and the1: 5,000,000 division map of important metallogenic belt in Africa was generated, which provided an important reference to carry out basic geological research and mineral exploration investment in Africa.