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DOI	10.1080/00206814.2018.1531356
	Intraplate extension of the Indochina plate deduced from 26 to 24 Ma A-type granites and tectonic implications
	Wang, Xinyu; Yao, Xin; Wang, Shifeng; Zhu, Xinyou; Wang, Jingbin; Wang, Chao
通讯作者	Yao, X (通讯作者)
发表日期	2019
ISSN	0020-6814
EISSN	1938-2839
起始页码	1691
结束页码	1705
卷号	61 期号:14
英文摘要	In recent years, abundant Cenozoic potassic magmatic rocks from eastern Tibet and the Indochina Block have been studied extensively; however, until now, knowledge of Cenozoic A-type granites from the interior of the Indochina Block has been limited. U-Pb zircon ages for six samples of the Salei granite pluton within the Indochina Block range from 26 to 24 Ma. In situ Lu-Hf and Sr-Nd isotope data indicate that the Salei pluton was sourced mostly from Mesoproterozoic basement rocks of the Indochina Block, mixed with a small volume of juvenile crust derived from the underplated mantle. Whole-rock major element geochemistry indicates that the six samples are peraluminous high-K calc-alkaline granites. The trace and rare earth element patterns are typical of within-plate A-type granites. In combination with previous research, the present results suggest that the late Oligocene Salei granite formed from the convective removal of thickened lower continental lithospheric mantle. Moreover, the presence of 26-24 Ma A-type granites in the Indochina Block indicates within-plate extension in the interior of the block during the late Oligocene.
关键词	RIVER SHEAR ZONE O ISOTOPIC COMPOSITIONS TRUONG SON BELT SR-ND-PB U-PB ZIRCON SATURATION CENTRAL VIETNAM WESTERN YUNNAN TRACE-ELEMENTS KONTUM MASSIF
英文关键词	Indochina block; A-type granite; U-Pb zircon age; geochemistry; Sr-Nd-Hf isotopes; intraplate extension; Cenozoic
语种	英语
WOS研究方向	Geology
WOS类目	Geology
WOS记录号	WOS:000475785500001
来源期刊	INTERNATIONAL GEOLOGY REVIEW
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259429
推荐引用方式 GB/T 7714	Wang, Xinyu,Yao, Xin,Wang, Shifeng,et al. Intraplate extension of the Indochina plate deduced from 26 to 24 Ma A-type granites and tectonic implications[J]. 中国科学院青藏高原研究所,2019,61(14).
APA	Wang, Xinyu,Yao, Xin,Wang, Shifeng,Zhu, Xinyou,Wang, Jingbin,&Wang, Chao.(2019).Intraplate extension of the Indochina plate deduced from 26 to 24 Ma A-type granites and tectonic implications.INTERNATIONAL GEOLOGY REVIEW,61(14).
MLA	Wang, Xinyu,et al."Intraplate extension of the Indochina plate deduced from 26 to 24 Ma A-type granites and tectonic implications".INTERNATIONAL GEOLOGY REVIEW 61.14(2019).