Strain and kinematic vorticity analysis: An indicator for sinistral transpressional strain-partitioning along the Lancangjiang shear zone, western Yunnan, China

doi:10.1007/s11430-009-0065-4

	Strain and kinematic vorticity analysis: An indicator for sinistral transpressional strain-partitioning along the Lancangjiang shear zone, western Yunnan, China
	Zhang Bo 1; Zhang JinJiang 2; Zhong DaLai 1; Guo Lei 2
刊名	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
	2009-05-01
卷号	52 期号:5 页码:602-618
关键词	strain kinematic vorticity transpression strain partitioning Lancangjiang shear zone
ISSN号	1006-9313
DOI	10.1007/s11430-009-0065-4
文献子类	Article
英文摘要	This work deals with the preliminary relationship between strain path and strain partitioning pattern in a sinistral transpressional zone, Lancangjiang shear zone, located to the southeast of Tibet. Various ductile rocks provide an opportunity to investigate quantitative finite strain (R (s)), kinematic vorticity values (W (m) ), and proportions of simple and pure shear components. The mean kinematic vorticity values (W (m) ) were evaluated based on three methods, such as R (s)-theta, prophyroclast hyperbolic distribution method (PHD), and polar Mohr diagram construction (PMD). W (m) for mylonitic metasediments of the low-grade schist belt ranged from 0.19 to 0.54. Protomylonites, mylonites, and ultramylonites recorded differential W (m) values, 0.19-0.73, 0.11-0.8, and 0.84-0.95 (even 0.99) respectively in the high-grade gneiss belt. Based on classical strain analysis and these kinematic vorticity evaluations, the shear zone is classified as a preliminarily bulk monoclinic symmetry. The pattern of vorticity path suggests that a previously undocumented transpressional setting and strain partitioning pattern in the southeast region of Tibet Plateau, characterized by steep-narrow domain of simple-shearing (Tertiary strike-slip shearing) deformation and wider domain of mostly pure-shearing (Tertiary contraction) to accommodate intracontinental deformation.
WOS关键词	METAMORPHIC CORE COMPLEX ; INDO-CHINA ; SAMBAGAWA BELT ; SW JAPAN ; SE ASIA ; DEFORMATION ; TECTONICS ; EXTRUSION ; MYANMAR ; MODEL
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000265924500003
资助机构	National Natural Science Foundation of China(40802050 ; National Natural Science Foundation of China(40802050 ; National Natural Science Foundation of China(40802050 ; National Natural Science Foundation of China(40802050 ; China Postdoctoral Science Foundation(20070440065) ; China Postdoctoral Science Foundation(20070440065) ; China Postdoctoral Science Foundation(20070440065) ; China Postdoctoral Science Foundation(20070440065) ; 49802020 ; 49802020 ; 49802020 ; 49802020 ; 40172074) ; 40172074) ; 40172074) ; 40172074) ; National Natural Science Foundation of China(40802050 ; National Natural Science Foundation of China(40802050 ; National Natural Science Foundation of China(40802050 ; National Natural Science Foundation of China(40802050 ; China Postdoctoral Science Foundation(20070440065) ; China Postdoctoral Science Foundation(20070440065) ; China Postdoctoral Science Foundation(20070440065) ; China Postdoctoral Science Foundation(20070440065) ; 49802020 ; 49802020 ; 49802020 ; 49802020 ; 40172074) ; 40172074) ; 40172074) ; 40172074) ; National Natural Science Foundation of China(40802050 ; National Natural Science Foundation of China(40802050 ; National Natural Science Foundation of China(40802050 ; National Natural Science Foundation of China(40802050 ; China Postdoctoral Science Foundation(20070440065) ; China Postdoctoral Science Foundation(20070440065) ; China Postdoctoral Science Foundation(20070440065) ; China Postdoctoral Science Foundation(20070440065) ; 49802020 ; 49802020 ; 49802020 ; 49802020 ; 40172074) ; 40172074) ; 40172074) ; 40172074) ; National Natural Science Foundation of China(40802050 ; National Natural Science Foundation of China(40802050 ; National Natural Science Foundation of China(40802050 ; National Natural Science Foundation of China(40802050 ; China Postdoctoral Science Foundation(20070440065) ; China Postdoctoral Science Foundation(20070440065) ; China Postdoctoral Science Foundation(20070440065) ; China Postdoctoral Science Foundation(20070440065) ; 49802020 ; 49802020 ; 49802020 ; 49802020 ; 40172074) ; 40172074) ; 40172074) ; 40172074)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/70266]
专题	中国科学院地质与地球物理研究所
通讯作者	Zhang Bo
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Peking Univ, Minist Educ, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Zhang Bo,Zhang JinJiang,Zhong DaLai,et al. Strain and kinematic vorticity analysis: An indicator for sinistral transpressional strain-partitioning along the Lancangjiang shear zone, western Yunnan, China[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2009,52(5):602-618.
APA	Zhang Bo,Zhang JinJiang,Zhong DaLai,&Guo Lei.(2009).Strain and kinematic vorticity analysis: An indicator for sinistral transpressional strain-partitioning along the Lancangjiang shear zone, western Yunnan, China.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,52(5),602-618.
MLA	Zhang Bo,et al."Strain and kinematic vorticity analysis: An indicator for sinistral transpressional strain-partitioning along the Lancangjiang shear zone, western Yunnan, China".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 52.5(2009):602-618.