U–Pb geochronology and Raman spectroscopy of zircons from the granites in the Xihuashan and Tieshanlong Deposit: Implications for W‐Sn mineralization in Southern Jiangxi Province, South China

Abstract

The Xihuashan and Tieshanlong tungsten deposit is an important large quartz vein‐type W‐polymetallic deposit in the southern Jiangxi Province, eastern Nanling Range. Zircon U–Pb analyses of representative ore‐forming granites from the Xihuashan and Tieshanlong tungsten deposit yield ages of 146.3 ± 2.9 Ma and 146.0 ± 3.8 Ma, respectively. According to the zircon Raman spectroscopy, these granitic rocks are disturbed by different degrees of hydrothermal alteration, whereas most zircons exhibit primary oscillatory zoning and Th/U ratios in the range of magmatic zircon, which means the analysis results represent the crystallization age of metallogenetic granitic assemblages. In combination with regional geological data, it is suggested that the Late Jurassic is probably another important episode of granitic magmatism and W‐Sn mineralization in southern Jiangxi Provinces, even South China.

Mineral Prospectivity Mapping of Tungsten Polymetallic Deposits Using Machine Learning Algorithms and Comparison of Their Performance in the Gannan Region, China

“…The Yanshanian and Indosinian periods were the main stage of tungsten polymetallic mineralization in the Nanling belt (Liu et al., 2014). The Jurassic era is the most important period of formation for the tungsten polymetallic deposits (Guo et al., 2020). The Gannan region has widespread Jurassic batholiths including granodiorite, biotite granite, two‐mica granite, A‐type granite, minor gabbro, and syenite (Zhang, Yang, et al., 2017).…”

“…It benefits from advantageous metallogenic geological conditions that have led to a large number of tungsten polymetallic resources having been discovered (Chen et al, 2018;Legros et al, 2020;Yu et al, 2010;Zhang et al, 2021b). Mesozoic granites have been studied extensively in the Gannan region owing to their close relationship with tungsten polymetallic mineralization (Cao et al, 2021;Guo et al, 2020;Li et al, 2022;Liu et al, 2013Liu et al, , 2015Liu et al, , 2018Shu et al, 2011;Sun, Li, et al, 2020;Wang et al, 2017Wang et al, , 2020bWu et al, 2021;Yu et al, 2010;Zhang, Lu, et al, 2017).…”

Mineral prospectivity mapping of tungsten polymetallic deposits using machine learning algorithms and comparison of their performance in the Gannan region, China

“…The Yanshanian and Indosinian periods were the main stage of Tungsten polymetallic mineralization in the Nanling belt (Liu et al, 2014). The Jurassic era is the most important period of formation for the tungsten polymetallic deposits (Guo et al, 2020). The Gannan region has widespread Jurassic batholiths including granodiorite, biotite granite, two-mica granite, A-type granite, minor gabbro, and syenite (Zhang et al, 2017b).…”

“…Mesozoic granites have been studied extensively in the Gannan region owing to their close relationships with tungsten polymetallic mineralization (Yu et al, 2010;Shu et al, 2011;Liu et al, 2013Liu et al, , 2015Wang et al, 2017;Zhang et al, 2017a;Guo et al, 2020;Wang et al, 2020c;Cao et al, 2021;Wu et al, 2021;Li, T., 2022). The study aimed to compare the performance and robustness of the five machine learning algorithms, and further, to determine the most appropriate model in terms of mapping favorable areas for tungsten polymetallic exploration in the Gannan region.…”