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  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 岩石圈演化国家重点实验室
Non-subduction origin for 3.2 Ga high-pressure metamorphic rocks in the Barberton granitoid-greenstone terrane, South Africa

文献类型：期刊论文

作者Wang, Hao1,2,3; Yang, Jin-Hui1,2,3; Kroener, Alfred4,5; Zhu, Yu-Sheng1,2; Li, Rui1,2,3
刊名TERRA NOVA
出版日期2019-08-01
卷号31期号:4页码:373-380
ISSN号0954-4879
DOI10.1111/ter.12397
英文摘要The occurrence of high-pressure (HP) garnet-bearing metamorphic rocks in the southern Barberton granitoid-greenstone terrane (BGGT), South Africa, has been proposed as a key indicator of the onset of modern plate tectonics at ca. 3.2 Ga. Here, we report new zircon/titanite U-Pb ages of garnet-bearing HP metamorphic rocks and associated granitoids in the BGGT that argue against such an interpretation. The results show that HP metamorphism occurred synchronously with granitoid magmatism in the Stolzburg domain, the supposed subducted plate, during two episodes at 3.4 and 3.2 Ga, and that these two episodes of magmatism occurred on both sides of the assumed suture zone, a feature that cannot easily be explained by the subduction model. In contrast, the coupled magmatism and metamorphism probably resulted from partial convective overturn (PCO), another viable mechanism for production and differentiation of continental crust during early Archean.
WOS关键词MOUNTAIN LAND ; CORE-COMPLEX ; BELT ; ZIRCON ; GROWTH ; EXHUMATION ; EVOLUTION ; PILBARA ; CRUST
资助项目National Natural Science Foundation of China[41490631] ; National Natural Science Foundation of China[41503026] ; National Natural Science Foundation of China[41521062]
WOS研究方向Geology
语种英语
WOS记录号WOS:000475470900007
出版者WILEY
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/92962]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Wang, Hao
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Chinese Acad Geol Sci, Beijing SHRIMP Ctr, Inst Geol, Beijing, Peoples R China
5.Johannes Gutenberg Univ Mainz, Inst Geowissensch, Mainz, Germany
推荐引用方式
GB/T 7714		 Wang, Hao,Yang, Jin-Hui,Kroener, Alfred,et al. Non-subduction origin for 3.2 Ga high-pressure metamorphic rocks in the Barberton granitoid-greenstone terrane, South Africa[J]. TERRA NOVA,2019,31(4):373-380.
APA Wang, Hao,Yang, Jin-Hui,Kroener, Alfred,Zhu, Yu-Sheng,&Li, Rui.(2019).Non-subduction origin for 3.2 Ga high-pressure metamorphic rocks in the Barberton granitoid-greenstone terrane, South Africa.TERRA NOVA,31(4),373-380.
MLA Wang, Hao,et al."Non-subduction origin for 3.2 Ga high-pressure metamorphic rocks in the Barberton granitoid-greenstone terrane, South Africa".TERRA NOVA 31.4(2019):373-380.

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来源：地质与地球物理研究所

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