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2017 Fiscal Year Final Research Report

Verification of the Nice model by the search for Edgeworth-Kuiper belt objects in brecciated meteorites

Research Project

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Project/Area Number 15K05339
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Petrology/Mineralogy/Economic geology
Research InstitutionThe University of Tokyo

Principal Investigator

Mikouchi Takashi  東京大学, 大学院理学系研究科(理学部), 准教授 (30272462)

Research Collaborator ZOLENSKY Michael  
HOFFMANN Viktor  
GOODRICH Cyrena  
NAGAO Keisuke  
Project Period (FY) 2015-04-01 – 2018-03-31
Keywords角レキ岩隕石 / エッジワースカイパーベルト天体 / ニースモデル / エンスタタイトコンドライト / スターダスト探査
Outline of Final Research Achievements

The Nice model predicts the possibility that the fragments of Edgeworth-Kuiper belt objects (EKBO) are present in the regolith of outer asteroid bodies. In this study I paid attention to foreign clasts in regolith brecciated meteorites and analyzed them using optical and electron microscopy, EPMA, Raman spectroscopy and synchrotron XRD. I could not discover possible EKBO materials, but found aqueously altered enstatite chondrites in Kaidun meteorite and discussed the possibility of the origin of earth water.

Free Research Field

惑星物質科学

URL: 

Published: 2019-03-29  

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