The 1:50 000 Mineral Geological Map Dataset of the Qingtang Map-sheet, Ningdu, South Jiangxi
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Abstract
The Qingtang map-sheet is located to the north of the Yudu Yingkeng-Ningdu Qingtang integrated survey area, south Jiangxi, and in the north of the Yushan metallogenic sub-zone. To develop this dataset, data were acquired comprehensively by using multiple methods such as mapping specific to lithology-structures-altered mineralization, remote sensing, geophysical/geochemical and drilling exploration. A route of 533.68 km was surveyed for mineral geology, with 1 729 stream sediment samples and 119 chemical analytical samples collected, 458 km2 of land measured with the 1:50 000 ground high-precision magnetic method and interpreted based on remote-sensing data, as well as 422m of depth drilled. In the dataset, emphasis is placed on survey and division of early-Yanshanian metallogenic magmatite, ore-bearing formations, rock-controlled and ore-controlled structures, and mineralized alteration marks etc. It is clear that biotite granite is a metallogenic geologic body of skarn-type S-Fe-W multi-metal ores, the main metallogenic structural plane is the Si-Ca heterologous interface in the upper part of the Zishan Formation, and alteration is mainly through skarnization, marbleization etc. The project team has plotted the Qingtang Map-sheet formation and structural map, created the mineral database of the area, and compiled properties of the main formation structures, fractures, geological boundaries and magmatite etc. This has improved the prospecting prediction model for Shihoushan-styled, S-Fe-W multi-metal deposits and highlighted the causal relationship between deposits and tectonic formations in the area.
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