Zircon U-Pb Dating of Yushugou Terrain of High-Pressure Granulite Facies in Southern Tianshan Mountain and Its Geological SIgnificance-中国期刊网

摘要 TheYushugouterrainofhigh-pressuregranulitefaciesinsouthernTianshanMountainiscomposedmainlyofanophiolitesuite.Mostselectedziroconsareroundorellipticalinshape,andsomeareoftetragonalprismwithroundedges.Thegranulometricanalysesshowthattheyarewellsortedinsedimentation.ZrO2/HfO2ratiosinzirconsrangefrom45to57.thesecharacters,togetherwiththepetrologicandgeochemicalcharactersofplagioclase-garnet-orthopyroxenitebearingzircons,indicatethattheprotolithofplagioclase-garnet-orthopyroxenitemaybederivedmainlyfromvolcanicbasesurgesedimentarydebrisinoceanicislandsandfromclaysformedbyseafloorweathering.Zirconsaresimplyofpyroclasticdebris.Theophioliteformationageof(440±18)Maandthefirst-stagemetamorphicage(amphiboliteorgranulitefacies)of(364±5)Mawereobtainedwithamethodofmultiplegrainsindifferentgroupsandamethodofconcordiaplot.TheseagesprovideimportantinformationonthetemporalandspatialoccurrenceofsouthernPaleoxoicTianshanOcean,Thesubductionrateoftheoceaniccrustandtheformationmechanismofophioliteofgranulitefacies.

1GUO Linnan;HUANG Chunmei;SHI Qingshang;YAN Jingjing. Zircon U-Pb Dating of Leucogranite in Lhozag and Its Geological Significance.地质学,2018-02.
2QIJinzhong;YUANShisong;LIUZhijie;LIUDunyi;WANGYanbin;LIZhihong;GUOJunhua;SUNBin. U-Pb SHRIMP Dating of Zircon from Quartz Veins of the Yangshan Gold Deposit in Gansu Province and Its Geological Significance.地质学,2004-02.
3YU Haijun;LI Wenchang;YIN Guanghou;LU Yingxiang;CAO Xiaomin;HUANG Dingzhu;DONG Tao;ZHANG Youming. Zircon U-Pb Ages of the Granodioritic Porphyry in the Laba Molybdenum Deposit, Yunnan, SW China and Its Geological Implication.地质学,2014-04.
4Lecai Xing;Taiyi Luo;Zhilong Huang;Zhikuan Qian;Mingzhong Zhou;Hongtao He. U-Pb zircon age of the base of the Ediacaran System at the southern margin of the Qinling Orogen.地球化学,2018-03.
5WANG Liqiang;CHEN Yuchuan;TANG Juxing;LU Pengrui;LUO Maocheng;WANG Huan;CHEN Wei;LENG Qiufeng. LA-ICP-MS Zircon U-Pb Dating of Intermediate-Acidic Intrusive Rocks and Molybdenite Re-Os Dating from the Bangpu Mo （Cu） Deposit, Tibet and its Geological Implication.地质学,2012-05.
6李大鹏;陈岳龙;罗照华;赵俊香. Zircon SHRIMP U-Pb Dating and Neoproterozoic Metamorphism of Kangding and Yuanmou Intrusive Complexes,Sichuan and Yunnan.地质学,2009-06.
7Jian ZHANG;Guochun ZHAO;LI Sanzhong;Min SUN;LIU Shuwen;Xiaoping XIA;Yanhong HE. U-Pb Zircon Dating of the Granitic Conglomerates of the Hutuo Group： Affinities to the Wutai Granitoids and Significance to the Tectonic Evolution of the Trans-North China Orogen.地质学,2006-06.
8Youwei Chen;Ruizhong Hu;Xianwu Bi;Shaohua Dong;Yue Xu;Ting Zhou. Zircon U-Pb Ages and Sr-Nd-Hf Isotopic Characteristics of the Huichizi Granitic Complex in the North Qinling Orogenic Belt and Their Geological Significance.地质学,2018-03.
9PENG Bingxia;WANG Yuejun;FAN Weiming;PENG Touping;LIANG Xinquan. LA-ICPMS Zircon U-Pb Dating for Three Indosinian Granitic Plutons from Central Hunan and Western Guangdong Provinces and Its Petrogenetic Implications.地质学,2006-05.
10SHI Yu;WANG Yuwang;WANG Jingbin;MAO Qigui;XIE Hongjing;ZHOU Guochao;ZHU Jiangjian;WEI Xiaofeng;Lü Xiaoqiang. Zircon SIMS U-Pb Age of the Shaxinan Melagabbro, Eastern Tianshan and Constraints on Fe-Ti-V Oxide Mineralization.地质学,2018-05.

Zircon U-Pb Dating of Yushugou Terrain of High-Pressure Granulite Facies in Southern Tianshan Mountain and Its Geological SIgnificance

来源期刊

相关推荐

同分类资源更多

相关关键词

Zircon U-Pb Dating of Yushugou Terrain of High-Pressure Granulite Facies in Southern Tianshan Mountain and Its Geological SIgnificance

来源期刊

相关推荐

同分类资源 更多

相关关键词

同分类资源更多