Search Results - "Imae, N"
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Pebbles and sand on asteroid (162173) Ryugu: In situ observation and particles returned to Earth
Published in Science (American Association for the Advancement of Science) (04-03-2022)“…The Hayabusa2 spacecraft investigated the C-type (carbonaceous) asteroid (162173) Ryugu. The mission performed two landing operations to collect samples of…”
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Petrology and classification of A‐9003, A 09535, and Y‐82094: A new type of carbonaceous chondrite
Published in Meteoritics & planetary science (01-02-2022)“…Most carbonaceous (C) chondrites are classified into eight major groups: CI, CM, CO, CV, CK, CR, CH, and CB. However, some are ungrouped. We studied two such…”
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Variation of mineralogy and organic material during the early stages of aqueous activity recorded in Antarctic micrometeorites
Published in Geochimica et cosmochimica acta (01-07-2017)“…Micrometeorites (MMs) recovered from surface snow near the Dome Fuji Station, Antarctica are almost free from terrestrial weathering and contain very primitive…”
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An Almahata Sitta EL3 fragment: implications for the complex thermal history of enstatite chondrites
Published in Progress in earth and planetary science (02-10-2021)“…Almahata Sitta is a polymict breccia, consisting of many kinds of clasts. Here we present our mineralogical and petrological results on an EL3 fragment, MS-177…”
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UV-visible-infrared spectral survey of Antarctic carbonaceous chondrite chips
Published in Polar science (01-09-2021)“…Antarctic carbonaceous chondrite (CC) meteorite chip samples in the Japanese and US collections have been studied by an ultraviolet (UV), visible (Vis), and…”
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Bulk chemical compositions of Antarctic meteorites in the NIPR collection
Published in Polar science (01-03-2018)“…Bulk chemical compositions of meteorites were traditionally analyzed by wet chemical analysis, and NIPR has data for 1162 meteorites as of September 2017. We…”
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Petrology of the Miller Range 03346 nakhlite in comparison with the Yamato-000593 nakhlite
Published in Meteoritics & planetary science (01-02-2007)“…— We petrologically examined the Miller Range (MIL) 03346 nakhlite. The main‐phase modal abundances are 67.7 vol% augite, 0.8 vol% olivine, and 31.5 vol%…”
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Petrology and bulk chemistry of Yamato-82094, a new type of carbonaceous chondrite
Published in Meteoritics & planetary science (01-03-2014)“…Carbonaceous chondrites are classified into several groups. However, some are ungrouped. We studied one such ungrouped chondrite, Y‐82094, previously…”
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Petrology of the Yamato nakhlites
Published in Meteoritics & planetary science (01-11-2005)“…— The Yamato nakhlites, Y‐000593, Y‐000749, and Y‐000802, were recovered in 2000 from the bare icefield around the Yamato mountains in Antarctica, consisting…”
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Phosphorus-rich grains in Ryugu samples with major biochemical potential
Published in Nature astronomy (25-09-2024)Get full text
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A case of AIDS with intractable cryptococcal meningitis
Published in Kansenshōgaku zasshi (01-07-1996)“…A 38-year-old hemophiliac, who had been infected with HIV by the administration of blood products and had been diagnosed as AIDS by the onset of Pneumocystis…”
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Two-stage plume melting: A possible mechanism for the origin of martian magmatism
Published in Earth and planetary science letters (01-07-2005)“…The origin of martian magmatism is investigated by geochemical modeling based on the isotopic and rare earth element (REE) compositions of the shergottite,…”
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Direct Evidence of Sulfidation of Metallic Grain in Chondrites
Published in Proceedings of the Japan Academy, Series B (1994)“…A large number of fractures dividing the troilite (FeS) into two distinct layers around metallic grains were observed in chondrite samples (ALH-764 and…”
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An experimental study of hydrous mineral formation by reaction between forsterite and water vapor
Published in Proceedings of the Japan Academy, Series B (1999)“…An experimental study of hydrous mineral formation reaction between the synthetic forsterite and water vapor has been carried out with autoclaves at…”
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