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Allanite U-Th-Pb geochronology by ion microprobe
Xin, Liao1,2,3; Li, Qiu-li1,2,3; Whitehouse, M. J.4; Yang, Yue-heng1,3; Liu, Yu1,3
2020-03-01
Source PublicationJOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
ISSN0267-9477
Volume35Issue:3Pages:489-497
AbstractAllanite, an epidote group mineral, occurs as a common accessory mineral in igneous, metamorphic rocks and hydrothermal deposits. It contains radioactive elements Th and U, making it a valuable U-Th-Pb geochronometer for various geological processes. Due to the structural and compositional complexity of allanite, in situ dating method is a better choice when the allanite is heterogeneous or has crystallized in multi-stage events. The wide variation of chemical compositions, however, raises the potential for matrix effects and complicates the use of in situ methods for allanite U-Th-Pb chronology. To address this issue, we made a comprehensive investigation on allanite U-Th-Pb chronology using Secondary Ion Mass Spectrometry (SIMS). Five allanite samples (CAP, Daibosatsu, SQ-51, Toba OTT, TARA allanite) with variable elemental compositions and common lead concentrations have been used. Allanites with variations in FeO (from 12.8 to 16.1 wt%) and similar ThO2 contents (around 1-2%) do not show significant matrix effects, as suggested by a previous study. While, obvious changes in calibration parameters (UO2+/U+, ThO2+/Th+) were noticed for allanites with a large range of Th contents (from 300 ppm to 2.0 wt%). By employing power law relationships between Pb+/U(+)versus UO2+/U+, Pb+/Th(+)versus ThO2+/Th+ with suitable exponentials, we do not observe obvious matrix effects with ThO2 concentrations variations. This study demonstrates that allanite can be a good geochronometer for multi-stage mineralization of hydrothermal deposits, providing valuable complementary information to zircon and monazite.
DOI10.1039/c9ja00426b
Funding OrganizationChina Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; National Nature Sciences 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 ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; National Nature Sciences 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 ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; National Nature Sciences 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 ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; National Nature Sciences 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 KeywordISOTOPE SYSTEMATICS ; TOBA TUFFS ; MONAZITE ; ZIRCON ; EVOLUTION ; AGE ; CHEMISTRY ; GRANITES ; HISTORY ; OROGENY
Language英语
Funding ProjectChina Scholarship Council (CSC) ; National Key R&D Program of China[2016YFE0203000] ; National Nature Sciences Foundation of China[41525012] ; National Nature Sciences Foundation of China[41773044] ; National Nature Sciences Foundation of China[41673059] ; National Program for Support of Top-notch Young Professionals
Funding OrganizationChina Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; National Nature Sciences 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 ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; National Nature Sciences 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 ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; National Nature Sciences 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 ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; China Scholarship Council (CSC) ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; National Nature Sciences Foundation of China ; National Nature Sciences 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 AreaChemistry ; Spectroscopy
WOS SubjectChemistry, Analytical ; Spectroscopy
WOS IDWOS:000519646000003
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95590
Collection岩石圈演化国家重点实验室
Corresponding AuthorLi, Qiu-li
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
4.Swedish Museum Nat Hist, Box 50007, SE-10405 Stockholm, Sweden
First Author AffilicationState Key Laboratory of Lithospheric Evolution
Corresponding Author AffilicationState Key Laboratory of Lithospheric Evolution
Recommended Citation
GB/T 7714
Xin, Liao,Li, Qiu-li,Whitehouse, M. J.,et al. Allanite U-Th-Pb geochronology by ion microprobe[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2020,35(3):489-497.
APA Xin, Liao,Li, Qiu-li,Whitehouse, M. J.,Yang, Yue-heng,&Liu, Yu.(2020).Allanite U-Th-Pb geochronology by ion microprobe.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,35(3),489-497.
MLA Xin, Liao,et al."Allanite U-Th-Pb geochronology by ion microprobe".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 35.3(2020):489-497.
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