2009 Fiscal Year Final Research Report
Implication of material evolution in the first million years in early solar system from chronological petrology in meteorite.
| Project/Area Number |
20740312
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Geochemistry/Astrochemistry
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| Research Institution | Hokkaido University |
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Principal Investigator |
ITOH Shoichi Hokkaido University, 大学院・理学研究院, 助教 (60397023)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 地球外物質化学 |
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| Research Abstract |
In this study, the chronological study combined with petrology and isotopology were applied to the first solid material (refractory inclusions and chondrules) from primitive chodrite in the solar system which formed at first several million years on the 4.6 billion years ago. High precision Mg isotope measurements have been performed to determine the individual minerals of radiogenic ^<26>Mg in coarse-grained Ca-Al-rich inclusions (CAIs) by secondary ion mass spectrometry. Minerals in each CAI show individual mineral isochrones of ^<26>Al-^<26>Mg with respect to each own oxygen isotopic composition of minerals. This indicates that the chronological resetting event by multiple heating in the solar nebula are estimated by ^<26>Al-^<26>Mg system.
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[Presentation] Water in Apollo rock samples and the D/H of lunar apatite.2010
Author(s)
Greenwood, J.P., Itoh, S., Sakamoto, N., Taylor, L.A., Warren, P.H., Yurimoto, H.
Organizer
41st Lunar and Planetary Science Conference
Place of Presentation
Houston, TX, USA
Year and Date
20100301-20100305
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[Presentation] Petrology, rare earth element composition and oxygen isotopic composition of a compound CAI-chondrule inclusion from Allende.2010
Author(s)
Wakaki, S., Itoh, S., Tanaka, T., Yurimoto, H.
Organizer
41st Lunar and Planetary Science Conference
Place of Presentation
Houston, TX, USA
Year and Date
20100301-20100305
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[Presentation] Oxygen-isotopic composition of magnetite in the DOM 03238 CO3. 1 chondrite.2008
Author(s)
Choi, B. -G., Itoh, S., Yurimoto, H., Rubin, A.E., Wasson, J.T., Grossman, J.N.
Organizer
71st Annual Meeting of the Meteoritical Society
Place of Presentation
松江
Year and Date
20080728-20080801
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