Ore genesis of Qingyunshan Cu-Au deposit in the Dehua-Youxi area of Fujian Province, southeastern China: Constraints from U-Pb and Re-Os geochronology, fluid inclusions, and H-O-S-Pb isotope data

Age, geochemistry, mineralization, and tectonic significance of felsic‐intermediate dikes in Shuangqishan Au deposit, Cathaysia block, South China

“…The first type of Au deposit is a low sulfidation epithermal Au deposit related to Late Jurassic volcanoes, including Qiucun, Dongyang, and Xiaban Au deposits (Li et al, 2020; Li, Li, Santosh, Zhu, & Suo, 2018). The second type of Au deposit is an intermediate sulfidation epithermal Au deposit related to Late Jurassic magma, such as the Ancun Au deposit and Qingyunshan Cu‐Au deposit (Li, Li, Santosh, Zhu, & Suo, 2018; Xiao et al, 2021). The third type of Au deposit is the magmatic‐hydrothermal Au deposit related to Proterozoic metamorphic strata and Caledonian alaskite, with examples including the Shuangqishan (Bao et al, 2020, 2021) and Xiaoban Au deposit (Zhang, 1992).…”

“…The Shuangqishan Au deposit (>15 t) is located in the Dehua‐Youxi‐Yongtai (DYY) goldfield in the southeastern Cathaysia Block, South China, and is the largest Au deposit in the central Fujian Province (Liu, Chen, Liu, Li et al, 1999; Liu, Chen, Liu, Xu et al, 1999) which is one of the four most important concentrated distribution area of Au deposits in Fujian Province (Figure 2a). There are more than 47 Au deposits of different genetic types in the DYY, including the medium‐low temperature magmatic‐hydrothermal Au deposits such as Shuangqishan and Xiaoban (Bao et al, 2020, 2021; Fan et al, 2022 under review), low sulfidation epithermal deposits the Qiucun, Dongyang and Xiaban (Huang et al, 2007; Li, Li, Santosh, Zhu, & Suo, 2018; Ni et al, 2018), intermediate sulfidation epithermal deposits such as Ancun (Li, Ni, Bao, Li, et al, 2018) and Qingyunshan (Xiao et al, 2021) deposits, Qiucheng porphyry Mo deposit (Fan et al, 2021; Zhang, 2013). The Shuangqishan gold ore bodies are hosted by Proterozoic metamorphic rocks and Caledonian alaskite, many controversial genetic types and metallogenic time have been proposed since its discovery in 1990.…”

“…Source: Modified from Zhong et al (2017). Ni et al, 2018), intermediate sulfidation epithermal deposits such as Ancun and Qingyunshan (Xiao et al, 2021) deposits, Qiucheng porphyry Mo deposit (Fan et al, 2021;Zhang, 2013). The Shuangqishan gold ore bodies are hosted by Proterozoic metamorphic rocks and Caledonian alaskite, many controversial genetic types and metallogenic time have been proposed since its discovery in 1990.…”

“…The basement rocks underwent metamorphism, gold, and Nb‐Ta mineralization during the Indosinian orogeny (~250–211 Ma) (Che et al, 2019; Li et al, 2012; Li, 2015; Shi et al, 2019; Yu et al, 2010). The Yanshanian intermediate and acid magmatism is related to large Au, Cu, and W‐Sn‐rare metals deposits in the Cathaysia block (Fan et al, 2021; Li, Ni, Bao, et al, 2019; Mao et al, 2007, 2008, 2021; Ni et al, 2021; Pan et al, 2018; Wang et al, 2016; Zhao et al, 2019; Zhou et al, 2006; Zhong et al, 2017).…”

In situ mineral chemistry of chlorite in Donghua area, Dehua‐Youxi‐Yongtai ore district, Fujian Province, south‐east China: Elemental characteristics and their implications for exploration

“…Herein are distributed four important ore districts producing gold, namely, the DYY in central‐eastern Fujian, Shanghang in the south‐west, Jianning in the north‐west, and Zhenghe‐Jian'ou in the north (P. Liu, Mao, Cheng, Yao, & Hao, 2017; Pan et al, 2019). Among them, the DYY and Zhenghe‐Jian'ou ore districts are situated along the Zhenghe‐Dapu Fault (Figure 1b; S. H. Wu, Mao, Xie, Geng, & Xiong, 2015; Xiao, Ban, et al, 2020; Xiao, Fan, Xing, & Jiang, 2021).…”