Genesis and Significance of Late Cretaceous Granitic Magmatism in Xianghualing Tin–Polymetallic Orefield, Nanling Region, South China

Author:

Zhang Zhihui,Hu Bojie,Zhang Da,He XiaolongORCID,Zou Jianlin,Tian Xufeng,Yi Yuanshun

Abstract

Typical stratiform-like cassiterite–sulfide orebodies formed at 160–150 Ma cut by a steep hydrothermal vein-type orebody were discovered in the Xianghualing tin–polymetallic orefield, which implied a new phase of magmatism and mineralization later than the Late Jurassic stage. Hence, a systematic study of the characteristics and genesis of the concealed Laohuya granite, including U–Pb age, trace elements, Lu–Hf isotopes of zircons, and whole-rock major- and trace-elements, is examined in this paper. The zircon U–Pb dating yielded a Concordia age of 87.75 ± 1 Ma, confirming the existence of Late Cretaceous magmatism in the Xianghualing tin–polymetallic orefield. The Laohuya granite is classified as syenogranite and belongs to the peraluminous, high K calc-alkaline series. It is a highly evolved A2-type granite with εHf(t) values ranging from −14.97 to −7.59 and two-stage model ages (TDM2) ranging from 2939 to 2280 Ma. Combining chronology, petrochemistry, isotopic geochemistry, and previous tectonic studies, we believe that the Laohuya granite originated from the partial melting of a reworked ancient crust composed of TTGs, and its weathered sediments formed in subduction or collision zones at 2.5 Ga, controlled by the reactivation of the Chenzhou–Linwu deep fault in the extensional setting of South China during the Late Cretaceous.

Funder

National Natural Science Foundation of China

China Geological Survey

Publisher

MDPI AG

Subject

Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science

Reference76 articles.

1. Differences between Rock-forming and Related Ore-forming Times for the Mesozoic Granitoids of Crust Remelting Types in the Nanling Range, South China, and Its Geological Significance;Hua;Geol. Rev.,2005

2. Large-scale tungten-tin mineralization in the Nanling region, South China: Metallogenic ages and corresponding geodynamic processes;Mao;Acta Petrol. Sin.,2007

3. Major types and time–space distribution of Mesozoic ore deposits in South China and their geodynamic settings;Mao;Miner. Depos.,2013

4. Crust-mantle interaction and its contribution to the Shizhuyuan superlarge tungsten polymetallic mineralization

5. K–Ar ages of plutonism and mineralization at the Shizhuyuan W–Sn–Bi–Mo deposit, Hunan Province, China

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