Fluid flow on centimeter-scale in deep paleosubduction zones in western Tianshan, China: Evidence from high-pressure veins

doi:10.1007/s11771-008-0092-x

	Fluid flow on centimeter-scale in deep paleosubduction zones in western Tianshan, China: Evidence from high-pressure veins
	Zhang Jin-fu 1; Huang De-zhi 1; Huang Shi-qi 1; Li Guo-ming 1; Gao Jun 2; Shi Yong-hong 3
刊名	JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY
	2008-08-01
卷号	15 期号:4 页码:488-492
关键词	subduction zone high-pressure vein scale of fluid flow western Tianshan
ISSN号	1005-9784
DOI	10.1007/s11771-008-0092-x
文献子类	Article
英文摘要	High-pressure(HP) veins were extensively developed in western Tianshan high-pressure(HP) metamorphic belt. The HP vein and host-rocks were analyzed by electronic microprobe to trace the origin of vein-forming fluids. Analytical data show that the immediately adjacent host-rocks of the studied HP vein are eclogites and gradually turned into blueschist as the distance from the veins increases, which indicates that the vein-forming fluid was derived from adjacent host-rocks; the boundaries between the vein and the host-rocks are sharp, which indicates that the fracture of the host-rocks is brittle during the vein-forming process. It is suggested that this type of HP veins is precipitated from the liquid formed by the dehydration of the host-rocks during the prograde metamorphism from blueschist to eclogite facies, which results in hydrofracturing of the rocks and provides the space for the vein to precipitate. The width of the eclogite-facies host-rocks is usually 1-2 cm, which provides the direct evidence that the fluid flow is on centimeter-scale.
WOS关键词	ND-PB ISOTOPE ; TRACE-ELEMENT ; ARC LAVAS ; MANTLE ; SR ; ROCKS ; METABASITES ; EVOLUTION ; RATIOS ; CRUST
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL OF CENTRAL SOUTH UNIV TECHNOLOGY
WOS记录号	WOS:000258563200013
资助机构	Major State Basic Research Development Program of China(2001CB409803) ; Major State Basic Research Development Program of China(2001CB409803) ; Major State Basic Research Development Program of China(2001CB409803) ; Major State Basic Research Development Program of China(2001CB409803) ; Major State Basic Research Development Program of China(2001CB409803) ; Major State Basic Research Development Program of China(2001CB409803) ; Major State Basic Research Development Program of China(2001CB409803) ; Major State Basic Research Development Program of China(2001CB409803)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/69450]
专题	中国科学院地质与地球物理研究所
通讯作者	Zhang Jin-fu
作者单位	1.Cent S Univ, Sch Geosci & Environm Engn, Changsha 410083, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230001, Peoples R China
推荐引用方式 GB/T 7714	Zhang Jin-fu,Huang De-zhi,Huang Shi-qi,et al. Fluid flow on centimeter-scale in deep paleosubduction zones in western Tianshan, China: Evidence from high-pressure veins[J]. JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY,2008,15(4):488-492.
APA	Zhang Jin-fu,Huang De-zhi,Huang Shi-qi,Li Guo-ming,Gao Jun,&Shi Yong-hong.(2008).Fluid flow on centimeter-scale in deep paleosubduction zones in western Tianshan, China: Evidence from high-pressure veins.JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY,15(4),488-492.
MLA	Zhang Jin-fu,et al."Fluid flow on centimeter-scale in deep paleosubduction zones in western Tianshan, China: Evidence from high-pressure veins".JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY 15.4(2008):488-492.