QQ客服 官方微博 反馈留言

	The Long Duration and Slow Exhumation of UHPM Oceanic Rocks in Western Tianshan,China; The Long Duration and Slow Exhumation of UHPM Oceanic Rocks in Western Tianshan,China
	ZHANG Lifei ; DU Jinxue ; YANG Xin ; SHEN Tingting ; XIA Bin ; XIA Yang
	2013
关键词	slow exhumation UHPM oceanic rocks Western Tianshan China slow exhumation UHPM oceanic rocks Western Tianshan China
英文摘要	The UHP metamorphic rock of oceanic type is extremely rare comparing with the continental type.This may be due to very hard for the exhumation of oceanic rock with heavier density than continental rock.The Chinese western Tianshan UHP metamorphic belt is the largest one of the oceanic type.The metamorphic petrological study shows that both coesite-bearing eclogites and their country rocks have the similar PT path characterized by the heat relaxation which is quite different from the hairpin shape PT path of HP metamorphic rocks for oceanic subduction such as Franciscan metamorphic complex and New Carlidonia metamorphic belt.The PT pseudosection calculation of both eclogites and country schists yield the similar PT conditions of 24-27 kbar and 470-510℃ for peak UHP stage,20±1.5 Kbar and 500-550℃ for eclogite facies retrograde stage and 10-8 Kbar,500 ℃ for blueschist facies stage.The geochronological studies by SIMS U-Pb zircon method,Lu/Hf and Sm/Nd isochron of mineral and whole rocks suggest that the peak met...; The UHP metamorphic rock of oceanic type is extremely rare comparing with the continental type.This may be due to very hard for the exhumation of oceanic rock with heavier density than continental rock.The Chinese western Tianshan UHP metamorphic belt is the largest one of the oceanic type.The metamorphic petrological study shows that both coesite-bearing eclogites and their country rocks have the similar PT path characterized by the heat relaxation which is quite different from the hairpin shape PT path o; 中国地质学会、美国地质学会; 1; Vol.87
语种	英语
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/480239]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	ZHANG Lifei,DU Jinxue,YANG Xin,et al. The Long Duration and Slow Exhumation of UHPM Oceanic Rocks in Western Tianshan,China, The Long Duration and Slow Exhumation of UHPM Oceanic Rocks in Western Tianshan,China. 2013-01-01.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。