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U-Pb Isotope Geochronology and Granitic Gneisses Nanoparticles from the Xiaomei Shear Zone: Implication for Caledonian Tectonic in the Hainan Island, China
Zhou Yang1; Shen Baoyun2; Liu Hailing3; Yan Yi; Yan Yan
2020
Source PublicationNANOSCIENCE AND NANOTECHNOLOGY LETTERS
ISSN1941-4919
Volume12Issue:1Pages:39
AbstractU-Pb ages of zircons from the granitic gneisses in the Xiaomei shear zone, Hainan Island, provide constraints on the age of granitic gneisses and tectonic evolution of Caledonian orogeny in Hainan Island. Zircons extracted from granitic gneisses are rounded and subrounded and characterized by oscillatory overgrowths enclosing inherited cores. The Early Devonian (414-411 Ma) ages of inherited zircons from the Xiaomei granitic gneisses are consistent with tectonic event that uplifted the Hainan island, resulting in the absence of Devonian strata. Meanwhile, nanoparticles are found in the granitic gneisses, including agglomerated nanoparticles and spherical nanoparticles in the ductile shear zone. The spherical nanoparticles in the shear zone are believed to have experienced a two-stage formation, from the linear spherical nanoparticles to planar spherical nanoparticles. With rise in temperature due to frictional heating during the shearing, spherical nanoparticles are deformed to agglomerated nanoparticles and the inherited zircons probably are recrystallized at 411 Ma.
DepartmentOMG
KeywordU-Pb Age Caledonian Orogeny Agglomerated Nanoparticles Linear Spherical Nanoparticles Planar Spherical Nanoparticles Inherited Zircons
DOI10.1166/nnl.2020.3069
Citation statistics
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/18587
Collection中科院边缘海地质重点实验室
Affiliation1.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Ocean & Marginal Sea Geol, Guangzhou 510640, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Guangdong Univ Technol, Guangzhou 510006, Peoples R China
4.Chinese Acad Sci, South China Sea Inst Oceanol, Guangzhou 510301, Peoples R China
Recommended Citation
GB/T 7714
Zhou Yang,Shen Baoyun,Liu Hailing,et al. U-Pb Isotope Geochronology and Granitic Gneisses Nanoparticles from the Xiaomei Shear Zone: Implication for Caledonian Tectonic in the Hainan Island, China[J]. NANOSCIENCE AND NANOTECHNOLOGY LETTERS,2020,12(1):39, 47.
APA Zhou Yang,Shen Baoyun,Liu Hailing,Yan Yi,&Yan Yan.(2020).U-Pb Isotope Geochronology and Granitic Gneisses Nanoparticles from the Xiaomei Shear Zone: Implication for Caledonian Tectonic in the Hainan Island, China.NANOSCIENCE AND NANOTECHNOLOGY LETTERS,12(1),39.
MLA Zhou Yang,et al."U-Pb Isotope Geochronology and Granitic Gneisses Nanoparticles from the Xiaomei Shear Zone: Implication for Caledonian Tectonic in the Hainan Island, China".NANOSCIENCE AND NANOTECHNOLOGY LETTERS 12.1(2020):39.
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