气候变化领域集成服务门户(CCPortal): A new view on consumption and regeneration of the continental crust: enlightenment from the new regional geological researching on the UHP rocks in the Dabie mountains, China.

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	A new view on consumption and regeneration of the continental crust: enlightenment from the new regional geological researching on the UHP rocks in the Dabie mountains, China.
	Hao, J; Liu, XH; Wang, EQ
通讯作者	Hao, J (通讯作者)
发表日期	2005
ISSN	1000-0569
EISSN	2095-8927
起始页码	1677
结束页码	1686
卷号	21 期号:6
英文摘要	In the Dabie Mountains, more and more regional geological data show that the UHP continental rocks and the coesite-bearing zircons, omphicite-bearing garnets, etc. which have extensively been discovered within gneiss country rock were relics from a melted eclogitized continental slice and kept within the high-grade gneiss country rock which is composed Of a Suite of metamorphic and ductile deformed plutons intruded under Newprotozoic low to mid-grade metamorphic volcanic-sedimentary strata on the Yangtze northern margin. Based on these facts, we suggest that the eclogite-bearing gneiss is not an UHP terrance or m lange included eclogite fragments and its protolith should be a suite of magmatic diapirite produced by an eclogitized continental slice melting, and advance a new hypothesis for continental crust consumption and regeneration and model of the Dabie collision zone evolutiona, that is after deep-subducted continental margin underwent the HP to UHP eclogite-facies metamorphism at different depth in anthenosphere, whit the subducted oceanic crust and continental mantle broken-off, the continental crust rapidly underplated under the obducted margin by buoyancy and took place part melt as rapidly decompression and mantle-heat input, and the melted mass replaced former root of the margin and diaper penetrated under the metamorphic strata, and at the same time of crystallizing, it experienced coordinating metamorphism and deformation with its depth to produce a high-grade orthrgneiss, that is regenerated crust.
关键词	ULTRAHIGH-PRESSURE METAMORPHISM TERRANE COMPLEX ZIRCON
英文关键词	Dabie mountains; continental crust; consumption and regeneration; underplating; pail melt; Diapir penetration
语种	英语
WOS研究方向	Geology
WOS类目	Geology
WOS记录号	WOS:000234692900015
来源期刊	ACTA PETROLOGICA SINICA
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/257366
推荐引用方式 GB/T 7714	Hao, J,Liu, XH,Wang, EQ. A new view on consumption and regeneration of the continental crust: enlightenment from the new regional geological researching on the UHP rocks in the Dabie mountains, China.[J]. 中国科学院青藏高原研究所,2005,21(6).
APA	Hao, J,Liu, XH,&Wang, EQ.(2005).A new view on consumption and regeneration of the continental crust: enlightenment from the new regional geological researching on the UHP rocks in the Dabie mountains, China..ACTA PETROLOGICA SINICA,21(6).
MLA	Hao, J,et al."A new view on consumption and regeneration of the continental crust: enlightenment from the new regional geological researching on the UHP rocks in the Dabie mountains, China.".ACTA PETROLOGICA SINICA 21.6(2005).