Deciphering the solar system chronology and planetary chemistry using meteorite zircon
Project/Area Number |
23840013
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Research Category |
Grant-in-Aid for Research Activity Start-up
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Allocation Type | Single-year Grants |
Research Field |
Geochemistry/Astrochemistry
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Research Institution | The University of Tokyo |
Principal Investigator |
IIZUKA Tsuyoshi 東京大学, 大学院・理学系研究科, 講師 (70614569)
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Project Period (FY) |
2011 – 2012
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Project Status |
Completed (Fiscal Year 2012)
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Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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Keywords | ジルコン / 年代学 / ジルコニウム同位体 / ハフニウム同位体 |
Research Abstract |
We have conducted U-Pb dating of various achondrites to understand the timescale of planetary crust evolution and to establish new reliable time anchors. We found that the studied achondrites have a wide range in U-Pb age from 4563 Ma to ca.4440 Ma and that the eucrite Agoult and the ungrouped achondrites Ibitira and Northwest Africa 6704 can potentially serve as the time anchors. We have further investigated the Nb-Zr isotope systematics of these meteorites. The results allow us to define the Solar System initial 92Nb abundance and to evaluate its uniformity.
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Report
(3 results)
Research Products
(34 results)
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[Journal Article] Recycled crustal zircons from podiformchromitites in the Luobusa ophiolite, southern Tibet.2013
Author(s)
Yamamoto S., Komiya T., Yamamoto H., Kaneko Y., Terabayashi M., Katayama I., Iizuka T., Maruyama S., Yang J., Kon Y., Hirata T.
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Journal Title
Island Arc v.
Volume: 22
Pages: 89-103
Related Report
Peer Reviewed
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[Presentation] U-Pb age, Re-Os isotopes, and HSE geochemistry of Northwest Africa 6704.2013
Author(s)
Iizuka T., Amelin Y., Puchtel I.S., Walker R.J., Irving A.J., Yamaguchi A., Takagi Y., Noguchi T. and Kimura M.
Organizer
44th Lunar and Planetary ScienceConference.
Place of Presentation
The Woodlands Waterway Marriot Hotel and Convention Center, Texas, USA.
Year and Date
2013-03-18
Related Report
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