江西宜春-新余地区石竹山超大型硅灰石矿区中多金属矿化矽卡岩的特征、形成年代及其找矿意义

李昌元; 马盈; 刘德亮; 李岩; 朱振华; 曾凯; 袁启玉; 肖丹

doi:10.3799/dqkx.2025.032

Volume 50 Issue 8

Aug. 2025

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Li Changyuan, Ma Ying, Liu Deliang, Li Yan, Zhu Zhenhua, Zeng Kai, Yuan Qiyu, Xiao Dan, 2025. Characteristics, Age, and Exploration Significance of Polymetallic Mineralized Skarns in the Super-Large Shizhushan Wollastonite Deposit in the Yichun-Xinyun Area of Jiangxi Province. Earth Science, 50(8): 2925-2936. doi: 10.3799/dqkx.2025.032

Citation:

Li Changyuan, Ma Ying, Liu Deliang, Li Yan, Zhu Zhenhua, Zeng Kai, Yuan Qiyu, Xiao Dan, 2025. Characteristics, Age, and Exploration Significance of Polymetallic Mineralized Skarns in the Super-Large Shizhushan Wollastonite Deposit in the Yichun-Xinyun Area of Jiangxi Province. Earth Science, 50(8): 2925-2936. doi: 10.3799/dqkx.2025.032

Citation:

Li Changyuan, Ma Ying, Liu Deliang, Li Yan, Zhu Zhenhua, Zeng Kai, Yuan Qiyu, Xiao Dan, 2025. Characteristics, Age, and Exploration Significance of Polymetallic Mineralized Skarns in the Super-Large Shizhushan Wollastonite Deposit in the Yichun-Xinyun Area of Jiangxi Province. Earth Science, 50(8): 2925-2936. doi: 10.3799/dqkx.2025.032

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Characteristics, Age, and Exploration Significance of Polymetallic Mineralized Skarns in the Super-Large Shizhushan Wollastonite Deposit in the Yichun-Xinyun Area of Jiangxi Province

doi: 10.3799/dqkx.2025.032

Li Changyuan^{1
,
,},
Ma Ying^{2
,
,
,},
Liu Deliang²,
Li Yan¹,
Zhu Zhenhua¹,
Zeng Kai¹,
Yuan Qiyu¹,
Xiao Dan¹

1.
Changsha Natural Resources Comprehensive Survey Center, China Geological Survey, Changsha 410600, China
2.
Collaborative Innovation Center for Exploration of Strategic Mineral Resources, School of Earth Resources, China University of Geosciences, Wuhan 430074, China

Received Date: 2024-12-14
Publish Date: 2025-08-25

Abstract

Abstract

The Shizhushan deposit (70 millions tons of wollastonite) in Jiangxi is situated in the eastern section of the Qin-Hang metallogenic belt and is recognized as the largest wollastonite deposit in the world. Within this deposit, W-Sn-Cu-Mo polymetallic mineralization is present in the skarns located in the contact zone between the Mengshan granite and the surrounding carbonate rocks. However, research on the formation age and genesis of this mineralization is relatively limited. This paper conducts in situ U-Pb dating and trace element analyses of garnets from different generations to determine the age of formation of the polymetallic mineralized skarns. The findings aim to enhance the understanding of the deposit's genesis and provide further guidance for mineral exploration. Three types of garnets have developed in the skarn: the first type consists of reddish-brown garnet (Grt-1), the second type comprises dark-brown garnet (Grt-2), and the third type features yellowish-green garnet (Grt-3). All three types of garnet belong to the andradite to grossularite solid-solution series; however, Grt-1 and Grt-2 are relatively rich in iron, while Grt-3 is relatively rich in aluminum. The U-Pb ages of Grt-2 and Grt-3 are 234.7±1.6 Ma and 234.4±9.9 Ma, respectively, which align with the ages of the biotite monzogranite from the Mengshan complex, widely exposed in the mining area. This study indicates that both wollastonite mineralization and polymetallic mineralization in the Shizhushan deposit occurred during the Late Triassic and are closely associated with the intrusion of the Mengshan granite. In addition to wollastonite, the Shizhushan deposit also holds significant potential for W-Sn-Cu-Mo polymetallic mineralization.
- Super-large wollastonite deposit,
- polymetallic mineralization,
- significance of prospecting,
- Shizhushan area,
- Jiangxi Province,
- mineralogy

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References(47)

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Characteristics, Age, and Exploration Significance of Polymetallic Mineralized Skarns in the Super-Large Shizhushan Wollastonite Deposit in the Yichun-Xinyun Area of Jiangxi Province

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