PMO OpenIR
Paleocene Neo-Tethyan slab rollback constrained by A(1)-type granitic intrusion in the Gaoligong-Tengliang-Yingjiang belt of the Eastern Himalayan Syntaxis, SE Tibet
Liu, Zheng1; Liao, Shi-Yong2; Tan, Shu-Cheng1; He, Xiao-Hu1; Wang, Guo-Chang3; Wang, Dong-Bing4; Zhou, Qing4
2019-09-01
Source PublicationINTERNATIONAL JOURNAL OF EARTH SCIENCES
ISSN1437-3254
Volume108Issue:6Pages:2113-2128
Corresponding AuthorTan, Shu-Cheng(tansc001@126.com)
AbstractSlab rollback is one of the primary processes in shaping tectonic framework. However, in the Tibet-Himalaya orogen, the timing of the Neo-Tethyan slab rollback remains controversial. In this contribution, we investigated an early Paleocene (ca. 62 Ma) A(1)-type granitic intrusion (South Gongshan) from the Gaoligong-Tengliang-Yingjiang (GTY) area, SE Tibet. It is mainly characterized by high 10,000*Ga/Al ratios (4.0-9.1) and extremely high HFSEs contents (Zr + Nb + Ce + Y = 669-3146 ppm), with relatively low Y/Nb ratios (0.8-1.1). The samples collected from the intrusion exhibit high zircon epsilon(Hf)(t) (+1.1 to +5.7) and whole-rock epsilon(Nd)(t) values (- 0.8 to - 3.1). Geochemical data indicated that it was probably produced by extreme FC of asthenospheric mantle-derived basaltic magmas. Together with results from convergence rate between India and Asia, the emplacement of the South Gongshan intrusion was likely to be associated with a transition from flat to steep subduction triggered by the Neo-Tethyan slab rollback. We proposed that the Neo-Tethyan slab rollback beneath the GTY area might have occurred at ca. 62 Ma.
KeywordA-type granite Neo-Tethys Slab rollback Paleocene SE Tibet
DOI10.1007/s00531-019-01752-4
WOS KeywordA-TYPE GRANITES ; ZIRCON U-PB ; SW CHINA PETROGENESIS ; INDIA-ASIA COLLISION ; TENGCHONG BLOCK ; WESTERN YUNNAN ; MILIN AREA ; ISOTOPE ; ROCKS ; AGES
Indexed BySCI
Language英语
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000481892500020
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/27920
Collection中国科学院紫金山天文台
Corresponding AuthorTan, Shu-Cheng
Affiliation1.Yunnan Univ, Sch Resource Environm & Earth Sci, Kunming 650091, Yunnan, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Key Lab Planetary Sci, Nanjing 210008, Peoples R China
3.Yunnan Univ, Yunnan Key Lab Palaeobiol, Kunming 650091, Yunnan, Peoples R China
4.Chinese Geol Survey, Chengdu Ctr, Chengdu 610081, Peoples R China
Recommended Citation
GB/T 7714
Liu, Zheng,Liao, Shi-Yong,Tan, Shu-Cheng,et al. Paleocene Neo-Tethyan slab rollback constrained by A(1)-type granitic intrusion in the Gaoligong-Tengliang-Yingjiang belt of the Eastern Himalayan Syntaxis, SE Tibet[J]. INTERNATIONAL JOURNAL OF EARTH SCIENCES,2019,108(6):2113-2128.
APA Liu, Zheng.,Liao, Shi-Yong.,Tan, Shu-Cheng.,He, Xiao-Hu.,Wang, Guo-Chang.,...&Zhou, Qing.(2019).Paleocene Neo-Tethyan slab rollback constrained by A(1)-type granitic intrusion in the Gaoligong-Tengliang-Yingjiang belt of the Eastern Himalayan Syntaxis, SE Tibet.INTERNATIONAL JOURNAL OF EARTH SCIENCES,108(6),2113-2128.
MLA Liu, Zheng,et al."Paleocene Neo-Tethyan slab rollback constrained by A(1)-type granitic intrusion in the Gaoligong-Tengliang-Yingjiang belt of the Eastern Himalayan Syntaxis, SE Tibet".INTERNATIONAL JOURNAL OF EARTH SCIENCES 108.6(2019):2113-2128.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu, Zheng]'s Articles
[Liao, Shi-Yong]'s Articles
[Tan, Shu-Cheng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu, Zheng]'s Articles
[Liao, Shi-Yong]'s Articles
[Tan, Shu-Cheng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, Zheng]'s Articles
[Liao, Shi-Yong]'s Articles
[Tan, Shu-Cheng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.