原生代

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Zircon U-Pb SHRIMP dating for the volcanic rocks of the Xiong’er Group: Constraints on the initial formation age of the cover of the North China Craton被引量：99
《Chinese Science Bulletin》2004年第23期2495-2502,共8页ZHAOTaiping ZHAIMingguo XIABin LIHuimin ZHANGYixing WANYusheng 
The volcanic rocks of the Xiong'er Group occur widely in the southern part of the North China Craton, which mark the beginning of the cover in the southern part of the North China Craton. The age of the volcanic rocks...
关键词：锆石 火山岩 中国 矿物 克拉通地块 原生代 
Neoproterozoic magmatic activity and global change被引量：64
《Chinese Science Bulletin》2003年第16期1639-1656,共18页ZHENG Yongfei School of Earth and Space Sciences, University of Science and Technol-ogy of China, Hefei 230026, China (e-mail: yfzheng@ustc.edu.cn) 
supported by the National Natural Science Foundation of China(Grant No.40033010);the Chinese Academy of Sciences(Grant No.KZCX2-107).
Neoproterozoic is a very important time in the history of the Earth, during which occurred supercontinent breakup, low-latitude glaciation, and biotic diversification. These concern a series of interdisciplinary studi...
关键词：原生代 大陆断裂 低纬度地区 生物多样性 板块运动 气候变化 生物进化 大陆构架 全球变化 冰川 
Lower boundary age of the Nanhua System and the Gucheng glacial stage: Evidence from SHRIMPⅡ dating被引量：39
《Chinese Science Bulletin》2003年第16期1657-1662,共6页YINChongyu LIUDunyi GAOLinzhi WANGziqiang XINGYusheng JIANPing SHIYuruo 
jointly supported by the Ministry of Science and Technology of China for fundamental work(Grant No.2001DEA20020-1);the Natural Science Foundation of China(Grant No.40272015);China Commission on Stratigraphy(research on the stage establishment for China’s main chronostratigraphy).
In the newly revised Regional Chronostrati-graphic (Geochronologic) Scale of China, the original bipar-tite division of the Neoproterozoic is changed to tripartite division. The three 搒ystem?rank chronostratigraphic ...
关键词：原生代 湖南 冰河期 地层年代 前寒武纪 中国 地质学 锆 年代测定 
Zircon SHRIMP U-Pb dating for the Cangshuipu volcanic rocks and its implications for the lower boundary age of the Nanhua strata in South China被引量：57
《Chinese Science Bulletin》2003年第16期1663-1669,共7页WANGJian LIXianhua DUANTaizhong LIUDunyi SONGBiao LIZhongxiong GAOYonghua 
supported both by the National Natural Science Foundation of China(Grand Nos.40032010-B.40072083 and 49972046);“100 Young Geologists”grant from both Chinese Ministry of Geology and Minera1 Resources and Sichuan Province
The continental volcanic rocks and volcaniclastic sedimentary conglomerates of the Cangshuipu Formation occur well in Yiyang of Hunan Province, consisting of a wedge-shaped succession of Neoproterozoic strata that ove...
关键词：地质年代 锆 年代测定 火山岩 中国 湖南 楔形 原生代 复理层 元古代 
Preliminary study of micro-scale zircon oxygen isotopes for Dabie-Sulu metamorphic rocks:Ion probe in situ analyses被引量：12
《Chinese Science Bulletin》2003年第16期1670-1678,共9页CHENDaogong DelouleEtienne CHENGHao XIAQunke WUYuanbao 
supported by the National Natural Science Foundation of China(Grants Nos.40033010 and 40273028);the State Key Basic Research Project(Grant No.G1999075503)
in situ analyses of oxygen isotopes were carried out by ion micro-probe for zircons from 8 localities of HP-UHP metamorphic rocks including eclogites in the Dabie-Sulu terrane. The results show significant heterogene-...
关键词：变质岩 离子探测器 氧 同位素 锆 榴辉岩 原生代 内部结构 
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