This specification stipulates the mathematical basis, accuracy requirements, editing preparations, compilation and drawing methods and technical requirements for the preparation and drawing of 1:50000 regional geological survey map geographical base maps, comprehensive selection, inspection and acceptance of each element of the map content and the printing original Picture quality requirements, etc. This specification is applicable to the compilation and drawing of geographical base maps of 1.5 0,000 regional geological survey maps. The compilation of geographical base maps of other geological maps of the same scale can also be used as a reference.
DZ/T 0157-1995 history
1995DZ/T 0157-1995 1:50000 Geological Map Geographical Base Map Compilation Specifications