Article
Geology
Yongjian Wang, Honghai Fan, Kezhang Qin, Noreen J. Evans, Chuang Zhang, Xinyu Zou, Yaqing Pang, Han Zhang
Summary: This study focuses on the formation timing of the Xiangshan volcanic-related uranium ore field in China. The results suggest a close link between uranium mineralization and volcanic magmatism, and the age of uranium mineralization is older than previously reported. This study provides important insights into the understanding of hydrothermal uranium deposits.
ORE GEOLOGY REVIEWS
(2023)
Article
Geochemistry & Geophysics
Kexin Wang, Degao Zhai, Anthony E. Williams-Jones, Dengfeng Li, Jiajun Liu
Summary: Numerous skarn-type Sn deposits have been found in the Nanling Range of South China, with the Xianghualing deposit being the focus of this study. The Xianghualing Sn mineralization consists of four ore-types: proximal skarn ore, distal skarn ore, vein cassiterite-sulfide ore, and veinlet Sn-Pb-Zn ore. In this research, in situ laser ablation inductively coupled plasma mass spectrometric (LA-ICPMS) U-Pb age determinations were performed on garnet and cassiterite from the Xianghualing skarn. The results show that there were two magmatic-hydrothermal events at around 160 Ma and 156-150 Ma, both of which led to Sn mineralization.
AMERICAN MINERALOGIST
(2023)
Article
Geosciences, Multidisciplinary
Yue Li, Feng Yuan, Simon M. Jowitt, Xiangling Li, Taofa Zhou, Fangyue Wang, Yufeng Deng
Summary: Determining the precise timing of mineralization is crucial for understanding geological events and processes. Existing methods for absolute dating of mineralizing systems have limitations. This study presents a new in situ analytical approach using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) for scheelite U-Pb dating. The approach is verified using samples from a skarn deposit in eastern China. The new approach is rapid, cost-effective, and can be conducted in situ, allowing for the retention of geological context. It has the potential for various applications in mineralizing systems.
GEOSCIENCE FRONTIERS
(2023)
Article
Geochemistry & Geophysics
Heriberto Rochin-Banaga, Donald W. Davis
Summary: This study examines the feasibility of using LA-ICPMS for U-Pb dating of vertebrate and invertebrate apatite fossils. The results suggest that the U-Pb system in shark teeth remains closed until the present but some teeth show anomalous ages possibly due to lead remobilization. Overall, LA-ICPMS allows for more precise absolute dating of fossils.
Article
Geology
Hong-Wei Peng, Hong-Rui Fan, Rong-Qing Zhang, Ting-Guang Lan
Summary: The Tiantangshan Rb-Sn-W deposit in northeastern Guangdong is one of the largest Rb deposits in China, formed approximately 134-133 million years ago. It is genetically related to alkali feldspar granite and volcanic intrusions, with main Rb mineralization hosted in hydrothermal biotite quartz veins and related to volcanic wall rock alteration.
ORE GEOLOGY REVIEWS
(2021)
Article
Geography, Physical
Xiaochen Ma, Jiasheng Wang, Thomas J. Algeo, Zhou Wang, Yue Cen, Can Chen, Dahe Chen, Junchen Lu, Yuzhou Yang
Summary: The Neoproterozoic strata in southwestern Hubei Province provide important information about the origin of Cryogenian sedimentary rocks in South China. New detrital zircon U-Pb ages reveal that the deposition of the Datangpo Formation occurred around 661 million years ago. These findings suggest that the siliciclastic deposits of the Cryogenian Nanhua System in southwestern Hubei Province were derived from the northern and northwestern margins of the Yangtze Block.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Geology
Zhilin Wang, Xiong Zhang, Qingquan Liu, Yongjun Shao, Shichong Wu, Zhuo Pan, Mei Chen, Yuce Zhang, Huahao Wu
Summary: The Lishupo gold deposit in South China is an orogenic gold deposit characterized by quartz veins and altered slates. The deposit went through three stages of mineralization, with metallic minerals including pyrite and arsenopyrite. The ore-forming fluids and metals were derived from a deeper metamorphic source, indicating a typical orogenic gold mineralization process.
ORE GEOLOGY REVIEWS
(2022)
Article
Geography, Physical
Xiaochen Ma, Jiasheng Wang, Zhou Wang, Thomas J. Algeo, Can Chen, Yue Cen, Qing-Zhu Yin, Chang Huang, Liyuan Xu, Chao Huang, Dahe Chen
Summary: Newly published ages of volcanic tuffs in South China provide new constraints on the duration of the Sturtian and Marinoan ice ages, indicating that the Sturtian Ice Age may have ended before 660 Ma and the Marinoan Ice Age began after 654.5 Ma.
GLOBAL AND PLANETARY CHANGE
(2023)
Article
Geosciences, Multidisciplinary
Zhongwu Lan
Summary: Authigenic xenotime and monazite are common in siliciclastic sedimentary rocks and can be used to determine the depositional age. Their small size and complex chemical compositions require advanced imaging and dating techniques. Integrated petrographic and geochemical studies can help distinguish their different sources.
EARTH-SCIENCE REVIEWS
(2022)
Article
Geochemistry & Geophysics
Kun-Yan Wu, Biao Liu, Qian-Hong Wu, She-Fa Chen, Hua Kong, Huan Li, Safiyanu Muhammad Elatikpo
Summary: This study used trace elements, oxygen isotopic compositions, and U-Pb isotopes to trace the tungsten metallogenic processes and genesis of the Shizhuyuan W-Sn deposit. The results indicated that scheelite formed in multiple stages of fluid activities and is associated with the Qianlishan granite.
JOURNAL OF GEOCHEMICAL EXPLORATION
(2023)
Article
Geology
Deru Xu, Deshui Yu, Zhilin Wang, Bo Li, Guoxiang Chi, Yueqiang Zhou, Shaohao Zou, Teng Deng, Shengwei Zhang, Xuena Wang
Summary: This study used K-feldspar 40Ar/39Ar dating and zircon U-Pb dating, along with geochemical analysis, to determine the age and nature of Late Jurassic to Early Cretaceous magmatism and related mineralization in the Jiangnan Orogen. The results show that the composite pluton in the region was formed in multiple stages and was responsible for two mineralization events in northeastern Hunan Province.
ORE GEOLOGY REVIEWS
(2022)
Article
Geosciences, Multidisciplinary
Shi Sun, Anqing Chen, Mingcai Hou, Shuai Yang, James G. Ogg, Hao Zou, Shenglin Xu, Qian Li, Yifan Huang, Ruixuan Li, Hongde Chen
Summary: This study reports on a GLB section of the South China Block, analyzing the residues of acid-insoluble material from carbonate rocks to estimate weathering intensity and associated climatic fluctuations. Different weathering units were identified, showing a correlation with climate variation during the critical interval.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Geochemistry & Geophysics
Fucheng Tan, Hua Kong, Biao Liu, Qianhong Wu, Shefa Chen
Summary: The grossular-andradite garnet is used to indicate the formation age of skarn and the skarn processes. This research focuses on a medium-sized reduced skarn Cu-W-Pb-Zn deposit in South China. The study analyzes different garnets in different skarn stages to determine the formation age and changes in the skarn processes.
Article
Geochemistry & Geophysics
Damaris Montano, Marta Gasparrini, Axel Gerdes, Giovanna Della Porta, Richard Albert
Summary: The Nordlinger Ries Crater in Southwest Germany, formed by a meteorite impact in the Miocene, provides a well-established geological framework for studying lacustrine carbonate using U-Pb LA-ICPMS method. The study demonstrates the accuracy and potential of this method in determining the timing of sedimentation in lacustrine systems.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Geology
Jingxin Hong, Hongyu Zhang, Dengfeng Li, Yongpeng Ouyang, Degao Zhai, Feng Liu, Jiajun Liu
Summary: The Zhuxi skarn W-Cu ore deposit in South China is the largest tungsten deposit in the world. This study highlights the key role of garnet in skarn formation and the reliability and viability of U-Pb dating for constraining the timing of mineralization.
ORE GEOLOGY REVIEWS
(2022)
