IGGCAS OpenIR  > 岩石圈演化国家重点实验室
Multi-system geochronology of North Dabie eclogite: Ineffective garnet `shielding' on rutile inclusions under multi-thermal conditions
Zhou, Tian1,2,3; Li, Qiuli1,2,3; Klemd, Reiner4; Shi, Yonghong5; Tang, Xu2; Li, Chaofeng1,2; Liu, Yu1,2
2020-09-01
Source PublicationLITHOS
ISSN0024-4937
Volume368Pages:10
AbstractIt has been shown that certain host minerals can robustly shield mineral inclusions and prevent loss of petrochronological information during subsequent thermal events. Ruble indusions in garnet may crystallize under a wide range of metamorphic conditions and thus ruble is expected to be a useful geochronometer for constraining different stages of a metamorphic P-T path. Hence, it is important to ascertain whether rutile inclusions shielded by garnet retain the original crystallization age information despite later retrograde cooling or subsequent new thermal events. In this study, we test the "shielding effect" of garnet on rutile inclusions from the Baizhangya edogite in the North Dabie Zone (China), which underwent a multi-stage thermal evolution. Secondary ion mass spectrometry (SIMS) U-Pb dating of inherited zircon core domains constrains a Neoproterozoic formation age (similar to 770 Ma) of the eclogite protolith. SIMS U-Pb dating of metamorphic zircon and complementary thermal-ionization mass spectrometry (TIMS) Sm-Nd isochron dating of garnet revealed Triassic eclogitefacies metamorphic ages (245-210 Ma). An Early Cretaceous SIMS U-Pb age of ca. 130 Ma. yielded by matrix rutile grains and rutile inclusions, suggests significant isotopic alteration since crystallization. This indicates that shielding was ineffective, since the U-Pb ages derived from the rutile inclusions, although hermetically armored by garnet, were influenced by a subsequent Early Cretaceous tectono-thermal event. Further transmission electron microscope (TEM) analysis revealed the presence of hematite microlites along the garnet-rutile boundaries, which may have acted as a potential reservoir to store the expelled radiogenic Pb from Mile. This study suggests that newly formed minerals located along mineral boundaries seem to be crucial for understanding the shielding effect. (C) 2020 Elsevier B.V. All rights reserved.
KeywordShielding effect Ruble inclusions Secondary ion mass spectrometry U-Pb dating Transmission electron microscope
DOI10.1016/j.lithos.2020.105573
Funding OrganizationNational Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals
WOS KeywordU-PB AGES ; EAST-CENTRAL CHINA ; ULTRAHIGH-PRESSURE METAMORPHISM ; TRACE-ELEMENT ; SM-ND ; MONAZITE INCLUSIONS ; CONTINENTAL-CRUST ; COOLING HISTORY ; EDOUGH MASSIF ; ZIRCON AGES
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFE0203000] ; National Natural Science Foundation of China[41773044] ; National Natural Science Foundation of China[41673059] ; National Program for Support of Top-notch Young Professionals
Funding OrganizationNational Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals ; National Program for Support of Top-notch Young Professionals
WOS Research AreaGeochemistry & Geophysics ; Mineralogy
WOS SubjectGeochemistry & Geophysics ; Mineralogy
WOS IDWOS:000541261600003
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/97154
Collection岩石圈演化国家重点实验室
Corresponding AuthorLi, Qiuli
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
4.Univ Erlangen Nurnberg, Schlossgarten 5a, D-91054 Erlangen, Germany
5.Hefei Univ Technol, Sch Resources & Environm Engn, Hefei 230029, Peoples R China
First Author AffilicationState Key Laboratory of Lithospheric Evolution
Corresponding Author AffilicationState Key Laboratory of Lithospheric Evolution
Recommended Citation
GB/T 7714
Zhou, Tian,Li, Qiuli,Klemd, Reiner,et al. Multi-system geochronology of North Dabie eclogite: Ineffective garnet `shielding' on rutile inclusions under multi-thermal conditions[J]. LITHOS,2020,368:10.
APA Zhou, Tian.,Li, Qiuli.,Klemd, Reiner.,Shi, Yonghong.,Tang, Xu.,...&Liu, Yu.(2020).Multi-system geochronology of North Dabie eclogite: Ineffective garnet `shielding' on rutile inclusions under multi-thermal conditions.LITHOS,368,10.
MLA Zhou, Tian,et al."Multi-system geochronology of North Dabie eclogite: Ineffective garnet `shielding' on rutile inclusions under multi-thermal conditions".LITHOS 368(2020):10.
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
[Zhou, Tian]'s Articles
[Li, Qiuli]'s Articles
[Klemd, Reiner]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhou, Tian]'s Articles
[Li, Qiuli]'s Articles
[Klemd, Reiner]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhou, Tian]'s Articles
[Li, Qiuli]'s Articles
[Klemd, Reiner]'s Articles
Terms of Use
No data!
Social Bookmark/Share
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit Add to Technorati
All comments (0)
No comment.
 

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