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| 1 | Ar-Ar Geochronology Study on K-feldspar in Xishan W-Sn Ore Deposit in Yangchun, Guangdong Province显示文摘1 Introduction Yangchun basin locates in the west of Guangdong Province,where more than 50 deposits have been discovered to date,including Xishan W-Sn deposit,Shilv Cu-Mo deposits,Tiantang Cu-Pb-Zn | TAN Juanjuan MEI Yuping YANG Hongmei LU Shansong DUAN Ruichun QIU Xiaofei | 2017 | Acta Geologica Sinica(English Edition)2017，91，S1： | 1 |
| 2 | 2.2Ga Subduction-Related Mafic Magmatic Rocks in the Kongling Complex:Evidence for the Assembly of the Columbia Supercontinent显示文摘Objective Petrogenesis of the Paleoproterozoic mafic dikes and their tectonic implications are of great significance to the tectonic evolution of the Yangtze craton as well as the paleoposition of the Yangtze craton relative to the Columbia supercontinent.Till now,intensive studies | LU Shansong QIU Xiaofei JIANG Tuo PENG Lianhong ZHAO Xiaoming WEI Yunxu DUAN Ruichun WU Nianwen | 2017 | Acta Geologica Sinica(English Edition)2017，91，5： | 1 |
| 3 | Decoupled Ce-Nd Isotopic Systematics of the Neoproterozoic Huangling Intrusive Complex and Its Geological Significance, Eastern Three Gorges, South China显示文摘Cerium is one of multivalent rear earth elements, which can transfer from trivalence to tretavalence at oxidizing environment. This process may cause variable degrees of fractionation of Ce from other trivalent rear earth elements, and thus may provide specific insight into the geological processes associated with marked redoxomorphism. Multiple geochemical tracing of Sr-Nd-Ce isotopes are performed on the felsic and mafic intrusives of the Neoproterozoic(~800 Ma) Huangling complex located at the eastern Three Gorges, South China. The intrusive rocks exclusively show various extents of negative Ce anomalies. On the εCe-εNd plot, most samples from the mafic intrusions scatter within the second quadrant, whereas those from the felsic intrusions within the fourth Quadrant. Both of the two groups exhibit relatively large range of ?Ce(t) variation but limited ?Nd(t) range, which cause a deviation from the 'crustal array' and reveal a decoupled Nd-Ce isotope correlation. The intermediate-felsic suite have varied Ce/Ce* ratios but broadly proximate εCe(t) values, indicating that their negative Ce anomalies were generated during the magmatism; on the contrary, a positive correlation between εCe(t) and Ce/Ce* is observed for the intermediate-mafic suite, an indication of an origin of post-magmatic alteration or metamorphism for their Ce anomalies. Calculation of model age, the occurrence age of negative Ce anomalies(TCe) for the intermediate-mafic samples infers that the alteration events took place >350 Ma. Data showed that negative Ce anomalies of the felsic intrusions may reflect an increase of oxygen fugacity during magma ascending, rather than an inheritance from their source rocks. This explanation implies that the Neoproterozoic magmatism occurred at the continental nucleus of the Yangtze block were developing at a geodynamic context of rapidly regional uplifting. | Yongjuan Gao Wenli Ling Xiaofei Qiu Ziwan Chen Shansong Lu Xiao Bai Xiujuan Bai Junbo Zhang Hongmei Yang Ruichun Duan | 2016 | Journal of Earth Science2016，27，5： | 1 |
| 4 | Ore-Forming Material Sources of the Shizishan Pb-Zn Deposit in Western Hunan Province,China显示文摘Objective The Shizishan Pb-Zn deposit is located in the southeastern margin of the Yangtze Block,and its Pb-Zn orebodies are mainly hosted in the Lower Cambrian Qingxudong Formation limestone.Previous researches have investigated the geological characteristics,geochemistry and fluid inclusions of this deposit,but | WANG Yunfeng YANG Hongmei QIU Xiaofei LU Shansong CAI Yingxiong | 2016 | Acta Geologica Sinica(English Edition)2016，90，5： | 0 |
| 5 | The Characteristics of Lead Isotope Compositions and Fluid Inclusions of Yutang Pb-Zn Deposit, Western Hunan Province, China and Their Geological Significance显示文摘1 Geology of Ore Field and Ore Deposit and Sampling The Yutang Pb–Zn deposit mainly dominated by lower Cambrian Qingxudong Formation limestone and located in southeastern margin of Yangtze block in regional structure,is part of the Huayuan Pb–Zn ore field situated in the western Hunan Province,China(WHPC).Orebodies are controlled by | 王云峰 杨红梅 LU Shansong CAI Yingxiong ZHANG Liguo LIU Chongpeng | 2015 | 地质学报2015，89，B10： | 0 |
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