1∶50 000 Mineral Geological Map Database of the Huangzhuguan Map-sheet in the Xicheng Pb-Zn Orefield, Gansu

The 1∶50 000 mineral geological map of the Huangzhuguan Map-sheet, Gansu(I47E013015) is compiled in accordance with the Technical Requirements of Solid MineralGeological Survey (DD 2019–02) and unified industrial standards and requirements. On thebasis of existing 1∶50 000 and 1∶250 000 regional geological survey results, the work wasperformed through field geology-specific mapping both outdoors and indoors with the help ofdigital mapping systems. The Huangzhuguang mineral geological map redivides the formationtypes of the Devonian Xihanshui Group, and establishes three formation units of the Devonianlead and zinc-forming period, including lead-zinc-bearing carbonate rock formation (D1a1a),lead-zinc-rich carbonate rock formation (D1a1c), and lead-zinc-poor phyllite with limestoneformation (D1a2). The map also establishes the EW fold–fault structure systems within themap-sheet area, highlights the lead-zinc ore-bearing formations and the special lithologic layersclosely related to the metallogenesis of lead and zinc, and innovatively presents geologicalfeatures related to the metallogenesis of lead and zinc in the exhalation sedimentation periodand hydrothermal reformation period supplemented by a lithofacies paleogeographic sketchmap and a tectonic outline map. The database contains 16 stratigraphic units, five stages ofintrusive rocks, three stages of structures, four isotopic ages, 12 pieces of whole-rock analyticaldata, and 30 pieces of mineral deposit data, with a data volume of 30.6 MB. The database givesa full presentation of the demonstrative results of 1∶50 000 mineral geological survey and canprovide reference for other similar areas.