Article
Geology
Yiwen Xu, Guangzhou Mao, Hongyan Geng, Tieliang He, Qinglin Xu, Yuanku Meng, Mingping Cao, Fengjie Yang, Pengrui An, Liguo Song, Yixin Dou, Yu Wang, Xiaowei Yu, Ying Shen
Summary: The Liaoshang gold deposit in the Jiaodong Peninsula is influenced by fluid from the crust and mantle, as evidenced by the composition of fluid inclusions in pyrite and dolomite. The ore-forming fluids and materials have multiple and complex sources, and the tectono-magmatic activities during the Mesozoic period control the formation and distribution of the gold orebodies. This study provides important insights for the exploration and exploitation of gold resources in the region.
ORE GEOLOGY REVIEWS
(2023)
Article
Geology
Chuang Bao, Bin Chen, Chunjiang Liu, Jiahao Zheng, Shuaijie Liu
Summary: Rare studies on Li isotope systematics of ore-forming fluids in mesothermal deposits, especially orogenic gold deposits, were carried out on samples from the Canzhuang gold deposit in East China. Results showed significant variations in Li isotopic compositions of altered-rock and quartz-vein type gold deposits, indicating distinct ore-forming processes and fluid evolutions. This work highlights the potential for Li isotopes in quartz and pyrite to provide insights into mesothermal hydrothermal system evolution.
ORE GEOLOGY REVIEWS
(2021)
Article
Geology
Yayun Liang, Lei Shu, Pingye Ma, Chenxi Zhang, Yao Ma, Majid Khan, Chonghui Shen
Summary: The Linglong gold orefield in the eastern North China Craton (NCC) consists of over 10 gold mines and has a total gold resource of approximately 1000 t. The gold mineralization occurs in gold-quartz veins and underwent four stages of ore-forming processes. This study focused on the investigation of pyrites from three main mineralization stages, examining their textures, major and trace element concentrations, and sulfur isotopic compositions through various analytical methods.
ORE GEOLOGY REVIEWS
(2023)
Article
Geology
Jinjian Wu, Qingdong Zeng, M. Santosh, Hongrui Fan, Rui Bai, Xinghui Li, Zheming Zhang, Yongwen Zhang, Liangliang Huang
Summary: The Jiaodong gold province in China has world-class gold deposits, and the source and nature of the ore-forming fluid in this region have been debated. Recent research suggests that the fluid changed during the process of ascending, with fluids from different sources continuously mixing and triggering the mineralization process.
ORE GEOLOGY REVIEWS
(2022)
Article
Geology
Weipin Sun, Yuzhou Feng, Zhaoxian Zhu, Shuanliang Zhang, Hongjun Jiang, Chao Wu
Summary: Jiudian is a representative quartz vein-type gold deposit in the Jiaodong world-class gold province. Through studying the paragenetic relationships and geochemical characteristics of pyrite, the complexity and multi-stage formation processes of the deposit have been revealed.
ORE GEOLOGY REVIEWS
(2022)
Article
Geochemistry & Geophysics
Wei Li, Nigel J. Cook, Gui-Qing Xie, Jing-Wen Mao, Cristiana L. Ciobanu, Bin Fu
Summary: Yuhengtang is a representative slate-hosted Au deposit in the Jiangnan orogenic belt, with distinct paragenesis and mineralization stages. Various in situ analytical techniques reveal the complex textures and isotopic variations of sulfides, providing insights into the depositional mechanisms and ore-forming processes of the hydrothermal Au system.
Article
Geology
Weipin Sun, Yuzhou Feng, Chunkit Lai, Zhaoxian Zhu
Summary: In the Jiudian gold deposit of the world-class Jiaodong gold province, gold is mainly associated with siderite, and the efficiency of gold precipitation is higher in the second ore stage. Gold deposition may have been caused by fluid immiscibility and boiling in the fluid. The presence of CH4 could also have promoted gold precipitation.
ORE GEOLOGY REVIEWS
(2022)
Article
Geology
Chengye Yang, Xiaoming Sun, Qiyuan Lu, Jianzhou Yi, Dengfeng Li, Yu Fu, Qiaofen Liu, Fengyu Miao, Zida Tong
Summary: The Buzhu gold deposit in the Indus-Yarlung Zangbo suture zone is a newly discovered representative gold deposit. The gold is mainly invisible lattice gold in pyrite and micrograins in (arseno)pyrite fractures. Two generations of auriferous pyrite, Py2a and Py2b, were identified, with Py2b containing more gold. Petrological and geochemical data suggest that the gold was derived from metamorphic devolatilization of the sedimentary wallrocks. The gold mineralization age is estimated to be around 19.60 million years ago, indicating an orogenic gold mineralization event related to extensional tectonics during the late-stage India-Asia continental collision.
ORE GEOLOGY REVIEWS
(2023)
Article
Geosciences, Multidisciplinary
Wenfa Shan, Xiancheng Mao, Zhankun Liu, Hao Deng, Lei Tang, Dutao Wang, Yong Pan, Yao Liu
Summary: This study used computational modeling to investigate the ore-forming processes in the Sanshandao-Haiyu gold belt. The results showed that only the syn-compressional scenario could produce dilation zones similar to the known orebodies, with the NW-SE direction being the major paleo compression stress direction during the ore-forming period. The estimated mineralization duration of the gold belt is less than 100,000 years.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Geology
Kai Feng, Hong-Rui Fan, Thomas Ulrich, Kui-Feng Yang, Fang-Fang Hu, Xuan Liu
Summary: The Majiayao gold deposit in China is unique for being hosted in an Archean high-grade metamorphic terrane, different from most Mesozoic granite-hosted gold deposits in the Jiaodong gold province. In this study, in-situ analyses of vein-hosted hydrothermal minerals and sulfur isotopic analyses were conducted to determine the timing of mineralization and understand the ore genesis. The results suggest that the ore-forming fluids were likely derived from mantle-related sources and interacted extensively with Archean basements at shallow crustal levels.
ORE GEOLOGY REVIEWS
(2021)
Article
Geochemistry & Geophysics
Hong-Wei Peng, Hong-Rui Fan, Xuan Liu, Bo-Jie Wen, Yong-Wen Zhang, Kai Feng
Summary: The study of the Sanshandao gold deposit in Jiaodong, China, revealed two generations of Au mineralization with different characteristics. The early generation is associated with pristine gold and pyrite in quartz-pyrite veins, with high fineness and specific trace element enrichments. The late generation is characterized by heterogeneous textures and low fineness, attributed to phase separation of ore elements during fluid decompression.
AMERICAN MINERALOGIST
(2021)
Article
Geosciences, Multidisciplinary
Ting-Guang Lan, Hong Wang, Hong-Rui Fan, Thomas Ulrich, Huan-Long Hu, You-Wei Chen, Lei Shu
Summary: Research has shown that over 5000 tonnes of gold were accumulated in the Jiaodong Peninsula during the early Cretaceous period, and the sources and formation processes of the gold deposits are still controversial. Through comprehensive in-situ analysis, it has been determined that multiple sources and ore-forming processes contributed to the giant gold mineralization in the area.
Article
Geology
Y. Q. Chen, B. N. Zhao, C. Chen, B. B. Zhao, P. D. Zhao
Summary: This paper introduces the study of geochemical anomalies generated by geological processes using PCA and SVD methods, applied in mining areas in the Jiaodong gold cluster area of China. The results show that SVD can extract both regional anomalies related to magmatism and local anomalies related to hydrothermal processes.
ORE GEOLOGY REVIEWS
(2022)
Article
Geology
Xin Fan, Zheng-wang Hu, Shun-fang Xu, Chao Chen, Nan Yi Hubei
Summary: The study delves into the geological characteristics, importance of mineralization research, and the impact of different geological structures on mineralization in the Gejiu superlarge tin polymetallic mining area in Yunnan. By using the finite-element method to simulate mineralization and validating the results against the instance area, the research shows that hydrothermal flow is the main controlling factor and favorable metallogenic areas are located in specific geological structures.
ORE GEOLOGY REVIEWS
(2021)
Article
Geology
Mengxu Guo, Jiajun Liu, Degao Zhai, Jeffrey de Fourestier, Min Liu, Rui Zhu
Summary: This study presents a detailed analysis of tourmaline mineralization in the Laodou gold deposit in Northwest China. The results show the presence of three generations and five types of tourmaline, with each generation having distinct characteristics and compositions. The variations in tourmaline textural characteristics, chemical compositions, and boron isotope compositions provide insights into the fluid evolution and ore genesis of the deposit.
ORE GEOLOGY REVIEWS
(2023)