气候变化领域集成服务门户(CCPortal): Tectono-metamorphic evolution of the Tethyan Sedimentary Sequence (Himalayas, SE Tibet)

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DOI	10.3301/IJG.2015.42
	Tectono-metamorphic evolution of the Tethyan Sedimentary Sequence (Himalayas, SE Tibet)
	Montomoli, Chiara; Iaccarino, Salvatore; Antolin, Borja; Appel, Erwin; Carosi, Rodolfo; Dunkl, Istvan; Lin, Ding; Visona, Dario
通讯作者	Montomoli, C (通讯作者)
发表日期	2017
ISSN	2038-1719
EISSN	2038-1727
起始页码	73
结束页码	88
卷号	136 期号:1
英文摘要	The Tethyan Sedimentary Sequence, one of the major tectonic units of the Himalayan belt cropping out in the inner portion of the chain, has been investigated in SE Tibet to unravel its tectonic and metamorphic evolution. The Tethyan Sedimentary Sequence recorded at least three phases of ductile defomation, all of them associated to the development of folds and related axial plane foliations. A prominent D1 deformation is progressively overprinted by a D2 defoiniation approaching the Yarlung Tsangpo suture zone to the North. Structural analysis allowed to recognise two first-order different structural domains: a southern domain in which DI is the prominent deformation and a northern domain in which the D2 overprint predominates up to transpose D1 deformation. F2 folds show a regional backward vergence (northward) with respect to the southward verging F1 folds. Finite strain data show an increase of D2-related strain moving to the North. It is worth to note that new P-T-d data on polydeformed chloritoid schists point out an increase of both temperature and pressure from D1 to D2 deformation indicating prograde burial during D1-D2 phases and support that F2 folds developed in a compressive tectonic framework during crustal thickening in the time span of 35-25 Ma. The integration of our new deformation and P-T data with available literature data will help to deconvolve the long lasted history of this tectonic unit, far away to be well understood.
关键词	FOLD-THRUST BELT SOUTHERN TIBET STRUCTURAL EVOLUTION CONTINENTAL-MARGIN THERMODYNAMIC DATA HIDDEN VALLEY CENTRAL NEPAL LOWER DOLPO HISTORY INDIA
英文关键词	Tethyan Sedimentary Sequence; SE Tibet; structural analysis; chloritoid schist
语种	英语
WOS研究方向	Geology
WOS类目	Geology ; Geosciences, Multidisciplinary
WOS记录号	WOS:000394731400007
来源期刊	ITALIAN JOURNAL OF GEOSCIENCES
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/259032
推荐引用方式 GB/T 7714	Montomoli, Chiara,Iaccarino, Salvatore,Antolin, Borja,et al. Tectono-metamorphic evolution of the Tethyan Sedimentary Sequence (Himalayas, SE Tibet)[J]. 中国科学院青藏高原研究所,2017,136(1).
APA	Montomoli, Chiara.,Iaccarino, Salvatore.,Antolin, Borja.,Appel, Erwin.,Carosi, Rodolfo.,...&Visona, Dario.(2017).Tectono-metamorphic evolution of the Tethyan Sedimentary Sequence (Himalayas, SE Tibet).ITALIAN JOURNAL OF GEOSCIENCES,136(1).
MLA	Montomoli, Chiara,et al."Tectono-metamorphic evolution of the Tethyan Sedimentary Sequence (Himalayas, SE Tibet)".ITALIAN JOURNAL OF GEOSCIENCES 136.1(2017).