Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《科学通报(英文版)》 2003-16
Add to Favorite Get Latest Update

Nd isotopic characteristics of post-Archean sediments from the Eastern Nanling Range: Evidence for crustal evolution

SHEN Weizhou1, YU Jinhai1, ZHAO Lei1, CHEN Zelin2 & LIN Hengcai2 1. State Key Laboratory for Mineral Deposit Research, Department of Earth Sciences, Nanjing University, Nanjing 210093, China; 2. Regional Geological Survey Team of Fujian Province, Sanming 365001, China Correspondence should be addressed to Shen Weizhou (e-mail: wzshen@ nju.edu.cn)  
A systematic Sm-Nd isotopic study was carried out for sediments and metasediments of different ages from Mesoproterozoic to early Mesozoic era in southwestern Fu-jian, Eastern Nanling Range. The results show that Nd model age (tDM) and e Nd(t) value of most sediments are closely simi-lar to those of Paleoproterozoic Mayuan Group, indicating that they may mainly be the recycling product of Paleopro-terozoic crustal materials. However, the Nd model age sig-nificantly decreases with a corresponding increase in the e Nd(t) value at Neoproterozoic (ca. 0.8—0.7 Ga) and Late Paleozoic (ca. 0.25 Ga), respectively. This is manifested by prominent vales and apexes on the diagrams of tDM vs. tStr. (stratum age) and e Nd(t) vs. tStr.. The decrease in tDM and the increase in e Nd(t) are explained as a result of the significant incorporation of juvenile crustal materials that originated from depleted mantle due to strong lithospheric extension during both periods. It appears that tectonic magmatism in the Neoproterozoic and the Late Paleozoic is of prominent importance in affecting the geochemical nature of sediments in South China.
【CateGory Index】: P597
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
Chinese Journal Full-text Database 1 Hits
1 HE ZhenYu~1 XU XiSheng~(1**) WANG XiaoLei~1 CHEN Rong~2 1.State Key Laboratory of Mineral Deposit Research,Department of Earth Sciences,Nanjing University,Nanjing 210093,China2.Nanjing Institute of Geology and Mineral Resources,Nanjing 210016,China;Geochronology and geochemistry of shoshonitic volcanics in southern Jiangxi Province.[J];Acta Petrologica Sinica;2008-11
Chinese Journal Full-text Database 10 Hits
1 ZHANG Bangtong,CHEN Peirong,YANG Dongsheng ,KONG Xinggong1) Department of Earth Science, Nanjing University, Nanjing, 210093 2) State Key Laboratory for Mineral Deposits Research, Nanjing University, Nanjing, 210093;Geological Evidence for Determination of Mesozoic Shoshonite Rock Series from Southern Jiangxi Province[J];Acta Geologica Sinica;2001-02
2 Chen Peirong 1 Kong Xinggong 1 Wang Yinxi 2 Ni Qisheng 1 Zhang Bangtong 1 Ling Hongfei 1 (1 State Key Laboratory for Mineral Deposits Research, Nanjing University; 2 Center of Modern Analysis, Nanjing University, Nanjing 210093);Rb-Sr ISOTOPIC DATING AND SIGNIFICANCE OF EARLY YANSHANIAN BIMODAL VOLCANIC-INTRUSIVE COMPLEX FROM SOUTH JIANGXI PROVINCE[J];Geological Journal of China Universitiesf;1999-04
3 ZHANG Bang-tong,CHEN Pei-rong,KONG Xing-gong (Department of Earth Sciences and State Key Laboratory for Mineral Deposit s Research,Nanjing University,Nanjing210093,China);Rb-Sr chronology of bimodal volcanic rocks of the Yutian Group in the Linjiang basin,southern Jiangxi[J];Chinese Geology;2002-04
4 ZHANG Bang-tong,CHEN Pei-rong,LING Hong-fei,KONG Xing-gong (State Key Laboratory for Mineral Deposits Research and Department of Earth Sciences,Nanjing University,Nanjing 210093,China);Pb-Nd-Sr Isotopic Study of the Middle Jurassic Basalts in Southern Jiangxi Province:Characteristics of Mantle Source and Tectonic Implication[J];Geological Journal of China Universities;2004-02
5 LIU Changshi, CHEN Xiaoming, WANG Rucheng, HU Huan, WANG DeziDepartment of Earth Sciences, State Key laboratory of Mineral Deposits, Nanjing University, Nanjing, 210093;Characteristic and Origin of the Shiling Sodalite Syenite Conghua City, Guangdong Province[J];Geological Review;2003-01
6 WANG Qiang1,2, ZHAO Zhen hua1, XIONG Xiao lin1, LI Xian hua1, BAO Zhi wei1(1. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; 2. State Key Laboratory for Mineral Deposits Research, Nanjing University, Nanjing;Ascertainment of the Shaoxing Enping alkali rich intrusive rock zone and preliminary discussion on its geodynamic implications[J];Geochimica;2002-05
7 Kong Xinggong Chen Peirong Zhang BangtongDepartment of Earth Science, Nanjing University,Nanjing,210093;Isotopic Characteristics of Rb-Sr and Sm-Nd in Bimodal Volcanics from the Baimianshi Basin, Southern Jiangxi Province[J];Geological Review;2000-02
8 CHEN Peirong1, ZHOU Xinmin1, ZHANG Wenlan1, LI Huimin2, FAN Chunfang1, SUN Tao1, CHEN Weifeng1 & ZHANG Min1 1. State Key Laboratory of Mineral Deposits Research, Department of Earth Sciences, Nanjing University, Nanjing 210093, China; 2. Tianjin Institute of Geology and Mineral Resources, China Geological Survey, Tianjin 300170, China;Petrogenesis and significance of early Yanshanian syenite-granite complex in eastern Nanling Range[J];中国科学D辑(英文版);2005-07
9 CHEN Peirong HUA Renmin ZHANG BangtongLU Jianjun & FAN ChunfangState Key Laboratory of Mineral Deposit Research, Department of Earth Sciences, Nanjing University, Nanjing 210093, China;Early Yanshanian post-orogenic granitoids in the Nanling region——Petrological constraints and geodynamic settings[J];中国科学D辑(英文版);2002-08
10 Gao Jian_Feng, Lu Jian_Jun, Lai Ming_Yuan, Lin Yu_Ping, Pu Weiarch, Nanjing University, 210093, China);Analysis of Trace Elements in Rock Samples Using HR-ICPMS[J];Journal of Nanjing University (Natural Sciences);2003-06
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved