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检索条件:"关键词=neoproterozoic "
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期刊SHRIMP U-Pb zircon age,geochemistry and Nd-Hf isotope of neoproterozoic mafic dyke swarms in western Sichuan:Petrogenesis and tectonic significance被引量:11
《中国科学:地球科学英文版》2007年第1期1-16,共16页LIN GuangChun LI XianHua LI WuXian 
Supported by the National Natural Science Foundation of China (Grant Nos. 40273012 and 40421303);the Chinese Academy of Sciences (Grant Nos. KZCX3-SW-141, 2003-2-1 and GIGCX-04-06)
neoproterozoic magmatic rocks are widespread in the western margin of the Yangtze block, and their origin and genesis have significant implications for understanding the evolution of the Rodinia super- continent. Howe...显示全部
关键词:neoproterozoic MAFIC DYKES Kangdian RIFT South China RODINIA 
期刊Possible early neoproterozoic magmatism associated with slab window in the Pingshui segment of the Jiangshan-Shaoxing suture zone: Evidence from zircon LA-ICP-MS U-Pb geochronology and geochemistry被引量:9
《中国科学:地球科学英文版》2009年第7期925-939,共15页CHEN ZhiHong GUO KunYi DONG YongGuan CHEN Rong LI LongMing LIANG YiHong LI ChunHai YU XiMing ZHAO Ling XING GuangFu 
Supported by China Geological Survey (Grant No. 1212010610611) ;the Ministry of Land and Resources (Grant No. 200811015)
We report here geochemical data, U-Pb zircon ages, and Hf isotopes for the high-Mg diorites (HMDs), Nb-enriched basaltic porphyrys (NEBPs) and plagiogranites (PLAGs) in the Pingshui segment of the Jiangshan-Shaoxing s...显示全部
关键词:ZIRCON LA-ICP-MS U-Pb dating GEOCHEMISTRY slab window EARLY neoproterozoic Pingshui of Shaoxing Jiangshan-Shanxing SUTURE zone 
期刊The age and tectonic environment of the rhyolitic rocks on the western side of Wuyi Mountain,South China被引量:9
《中国科学:地球科学英文版》2008年第8期1053-1063,共11页SHU LiangShu DENG Ping YU JinHai WANG YanBin JIANG ShaoYong 
the National Natural Science Foundation of China (Grant Nos.40634022,40221301,40572118,40672125 and 40132010)
During the geological survey of the metamorphic rocks in Xingning-Wuhua region on the western side of Wuyi Mountain, South China, we discovered the neoproterozoic rhyolite and rhyolitic greywacke for the first time th...显示全部
关键词:RHYOLITE CALC-ALKALINE series early stage of neoproterozoic western Wuyi MOUNTAIN South China 
期刊SHRIMP zircon U-Pb dating of the intrusives in the Tongling metallogenic cluster and its dynamic setting被引量:8
《中国科学:地球科学英文版》2008年第7期911-928,共18页GanGuo Wu  Da Zhang  YongJun Di  WenShuan Zang  XiangXin Zhang  Biao Song ZhongYi Zhang 
the National Natural Science Foundation of China (Grant No. 40434011);the Major State Basic Research Program (Grant No. 1999CB043206);the National Natural Science Foundation of China (Grant No. 40372050)
This paper selected five typical Mesozoic intrusives from the Tongling metallogenic cluster (Xiaotongguanshan, Fenghuangshan, Xinqiao, Dongguashan, and Shatanjiao plutons), and made a systemic SHRIMP zircon U-Pb datin...显示全部
关键词:INTRUSIVE rocks SHRIMP U-Pb dating of ZIRCONS GEODYNAMICS neoproterozoic the TONGLING METALLOGENIC CLUSTER area 
期刊Contemporaneous assembly of Western Gondwana and final Rodinia break-up:Implications for the supercontinent cycle被引量:7
《地学前缘:英文版》2017年第6期1431-1445,共15页Sebastián Oriolo Pedro Oyhantcabal Klaus Wemmer Siegfried Siegesmund 
S.Oriolo thanks DAAD for a long-term PhD scholarship(A/12/75051)
Geological,geochronological and isotopic data are integrated in order to present a revised model for the neoproterozoic evolution of Western Gondwana.Although the classical geodynamic scenario assumed for the period 8...显示全部
关键词:BrasilianoePan-African OROGENY neoproterozoic COLLISIONAL tectonics Pannotia Metacratonization Introversion-extroversion 
期刊SHRIMP zircon U-Pb age and Nd isotopic study on the Nyainqêntanglha Group in Tibet被引量:6
《中国科学:地球科学英文版》2005年第9期1377-1386,共10页HU Daogong1, WU Zhenhan1, JIANG Wan1, SHI Yuruo2, YE Peisheng1 & LIU Qisheng1 1. Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China 2. Institute of Geology, Chinese Academy of Geological Sciences, Beijing SHRIMP Centre, Beijing 100037, China 
The Nyainqêntanglha Group is traditionally viewed as the oldest metamorphic basement in the Lhasa block, but its formation age and tectonic setting remain debate. Zircons extracted from the metamorphic sequence o...显示全部
关键词:Nyainqêntanglha Group  SHRIMP dating  ND isotope  neoproterozoic  Tibet. 
期刊Geochronology of middle neoproterozoic volcanic deposits in Yangtze Craton interior of South China and its implications to tectonic settings被引量:5
《中国科学:地球科学英文版》2010年第9期1307-1315,共9页WANG ZhengJiang1, WANG Jian1, DUAN TaiZhong2, XIE Yuan1, ZHUO JieWen1,3 & YANG Ping1 1 Chengdu Institute of Geology and Mineral Resources, Ministry of Land and Resources, Chengdu 610082, China 2 Marathon Oil UK Ltd., Aberdeen, Scotland, AB15 6FZ, UK 3 Graduate Department, Chinese Academy of Geological Sciences, Beijing 100037, China 
supported by Surveying and Evaluating Project for Marine Basin Bearing Oil and Gas and Its Accumulation Factors in Upper and Middle Yangtze Block,China Geolog-ical Survey (Grant No.1212010733505)
Here we report new SHRIMP dating results of the crystal tuff in Ejiaao Formation of middle Banxi Group in northern Guizhou. The results indicate that the volcanic deposition occurred at ~780 Ma. We also suggests that ...显示全部
关键词:Yangtze CRATON MIDDLE neoproterozoic Ejiaao Formation of Banxi Group SHRIMP zircon U-Pb dating EPISODIC and BIMODAL IGNEOUS series 
期刊New observations on spicule-like structures from Dou-shantuo phosphorites at Weng'an,Guizhou Province被引量:4
《科学通报:英文版》2001年第21期1828-1832,共5页Leiming Yin Shuhai Xiao Xunlai Yuan 
This work was supported by the NationalNatural Science Foundation of China (Grant No. 95-Z-02-01); the Ministry of Science and Technology of China (Grant No. G2000077700) and ;Tulane University.
Doushantuo phosphorites at Weng’an, Guizhou Province, provide a unique opportunity for the study of early evolution of multicellular organisms, including metazoans. Our light microscope and SEM observations, however,...显示全部
关键词:Doushantuo Formation neoproterozoic Guizhou PHOSPHORITE sponge. 
期刊SHRIMP U-Pb zircon age,geochemistry and Nd isotope of the Guandaoshan pluton in SW Sichuan:Petrogenesis and tectonic significance被引量:4
《中国科学:地球科学英文版》2003年第z1期73-83,共11页李献华 李正祥 周汉文 刘颖 梁细荣 李武显 
supported by the National Climbing Project(Grant No.95-Y-25);the National Natural Science Foundation of China(Grant Nos.40032010-B and 49725309);the Chinese Academy of Sciences(Grant No.KZCX2-101).
SHRIMP U-Pb zircon age, geochemical and Nd isotopic data are reported for the neoproterozoic Guandaoshan pluton in the Yanbian region, SW Sichuan. This pluton is of typical I-type granite and emplaced at (857±13)...显示全部
关键词:granitoids  U-Pb zircon age  geochemistry  Nd isotope  SW Sichuan  neoproterozoic. 
期刊信阳周庄变辉长岩LA-ICPMS U-Pb定年与华北南缘复杂演化过程被引量:3
《岩石学报》2009年第12期3275-3286,共12页高秋灵 郑建平 张志海 熊庆 陈曦 
国家自然科学基金(90714002,40425002和40673002)的资助
河南信阳周庄变基性侵入岩体出露于华北克拉通南缘,主要由斜长石+角闪石(+绿帘石)组成,可见残余辉长结构,属经历了绿帘角闪岩相-低角闪岩相变质的变辉长岩。对变辉长岩的两个样品中的锆石进行了LA-ICPMS U-Pb同位素测年分析。这两个样...显示全部
关键词:信阳 周庄 变辉长岩 U-Pb LA-ICPMS 定年 华北南缘 演化过程 North China CRATON southern 华北克拉通南缘 Rodinia SUPERCONTINENT Late neoproterozoic 角闪岩相变质 ages Yangtze CRATON Rodinia超大陆 样品 侵入岩体 重结晶作用 
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