Database of 1∶50 000 Mineral Geological Map of the Suolong Map-sheet in Zhaishang–Mawu Gold Deposit, Minxian County, Gansu Province
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Graphical Abstract
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Abstract
The 1∶50 000 mineral geological map of the Suolong Map-sheet (I48E010011) in Zhaishang–Mawu Gold Deposit in Minxian County, Gansu Province was developed in accordance with the Technical Requirements of Solid Mineral Geological Survey (1∶50 000) and other unified standards and requirements in the geological industry, during which the results obtained from previous 1∶50 000-scale regional geological surveys and 1∶50 000-scale regional mineral surveys were fully utilized. Meanwhile, the digital mapping system was adopted for field geology-specific mapping, and indoor map compilation was conducted along with field mapping. In this map, the sedimentary suite types of the pre-Devonian Wujiashan and Dacaotan Formations, Carboniferous Badu Formation, and Permian Shilidun Formation are reclassified, the formation epochs of the intrusions are classified into Late Triassic and Early Permian, and the evolutionary sequence of magmatic rocks is established. The gold metallogenesis in this Map-sheet is closely related to Permian strata, and most deposits (ore occurrences) occurred in clastic rocks of the Shilidun Formation with relatively developed fissures. The database of the 1∶50 000 mineral geological map (also referred to as the Database) includes the data of seven stratigraphic units and two stages of magmatic rocks, and covers 212 polished thin sections, 192 chemical samples, 486 bedrock spectra, 2793 soil samples, two samples for Ar/Ar dating, eight samples for fluid inclusion thermometry, and 15 samples for petrochemical analysis. Meanwhile, three gold ore bodies and one gold mineralized point were newly discovered in the study area, with estimated (334) gold of 5.32 tonnes. Having a data size of about 17.4 MB, the Database fully reflects the demonstration results of 1∶50 000 mineral geological surveys, and could provide references for mineral resource research and energy exploration in this Map-sheet area.
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