U-Pb dating, mineral geochemistry and sulfur isotopes of the Tieshan complex in Fujian Province, southeast China: Implications for Pb-Zn polymetallic mineralization

IF 3.2 2区地球科学 Q1 GEOLOGY

Ore Geology Reviews Pub Date : 2025-01-01 DOI:10.1016/j.oregeorev.2024.106425

Xiaoyu Shang , Minfang Wang , Fan Xiao , Xiangyi Ji , Ruizhe Zhao

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Abstract

The Tieshan complex is located in Zhenghe area of Fujian Province (SE China), which is potassic altered with extensive Cu-Mo-Au-Pb-Zn polymetallic mineralization. U-Pb dating of zircon from granite (171.38 ± 0.55 Ma) and garnet from Pb-Zn skarn ore (176.4 ± 2.1 Ma) suggested that the magmatism occurred during the Jurassic Yanshanian orogenic event. The age of magmatic apatite from granite (196.7 ± 4.1 Ma) was older than the ore formation age. The hydrothermal apatite has higher Th-Sr-V-As-U-Pb but lower Rb-Ti-Mn contents than the magmatic apatite. The elevated positive Eu and Ce anomalies, low Ce/Y and Mn/Fe but high Sr/Y ratios in the hydrothermal apatite suggested a more oxidizing mineral-forming environment. In-situ sulfur isotopes in sulfides (−0.58 to −4.57 ‰) show a deep fluid source, and the magmatic-hydrothermal fluid may have reacted with crustal rocks and mixed with meteoric water. We suggest Pb-Zn exploration potential at depth near the Jurassic (176–171 Ma) plutons at Zhenghe.

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来源期刊

Ore Geology Reviews 地学-地质学

CiteScore

6.50

自引率

27.30%

发文量

546

审稿时长

22.9 weeks

期刊介绍： Ore Geology Reviews aims to familiarize all earth scientists with recent advances in a number of interconnected disciplines related to the study of, and search for, ore deposits. The reviews range from brief to longer contributions, but the journal preferentially publishes manuscripts that fill the niche between the commonly shorter journal articles and the comprehensive book coverages, and thus has a special appeal to many authors and readers.