GB/T 958-1989
AbolishedGeological symbols used for regional geological maps(1∶50000)
区域地质图图例
Application Summary AI generated
GB/T 958-1989 specifies standardized symbols, patterns, and colors for representing geological features on 1:50,000 scale regional geological maps. It is applied in geological mapping, mineral exploration, and engineering geology to ensure consistent interpretation of rock types, structures, and stratigraphy across China. The standard is used by geologists, surveyors, and cartographers in field surveys and map production for resource assessment and land-use planning.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.