气候变化领域集成服务门户(CCPortal): Detection of solar wind-produced water in irradiated rims on silicate minerals

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DOI	10.1073/pnas.1320115111
	Detection of solar wind-produced water in irradiated rims on silicate minerals
	Bradley J.P.; Ishii H.A.; Gillis-Davis J.J.; Ciston J.; Nielsen M.H.; Bechtel H.A.; Martin M.C.
发表日期	2014
ISSN	0027-8424
起始页码	1732
结束页码	1735
卷号	111 期号:5
英文摘要	The solar wind (SW), composed of predominantly ∼1-keV H+ ions, produces amorphous rims up to ∼150 nm thick on the surfaces of minerals exposed in space. Silicates with amorphous rims are observed on interplanetary dust particles and on lunar and asteroid soil regolith grains. Implanted H+ may react with oxygen in the minerals to form trace amounts of hydroxyl (-OH) and/or water (H2O). Previous studies have detected hydroxyl in lunar soils, but its chemical state, physical location in the soils, and source(s) are debated. If -OH or H2O is generated in rims on silicate grains, there are important implications for the origins of water in the solar system and other astrophysical environments. By exploiting the high spatial resolution of transmission electron microscopy and valence electron energy-loss spectroscopy, we detect water sealed in vesicles within amorphous rims produced by SW irradiation of silicate mineral grains on the exterior surfaces of interplanetary dust particles. Our findings establish that water is a byproduct of SW space weathering. We conclude, on the basis of the pervasiveness of the SW and silicate materials, that the production of radiolytic SW water on airless bodies is a ubiquitous process throughout the solar system.
英文关键词	Aberration-corrected scanning transmission electron microscopy; Astrobiology; Cosmic dust; Prebiotic water; Solar wind radiolysis
语种	英语
scopus关键词	hydroxyl group; mineral; oxygen; silicate; water; article; astronomy; dust; electron energy loss spectroscopy; priority journal; radiolysis; soil; solar radiation; space; transmission electron microscopy; weathering
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158992
作者单位	Bradley, J.P., Institute of Geophysics and Planetary Physics, Lawrence Livermore National Laboratory, Livermore, CA 94550, United States, Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, Honolulu, HI 96822, United States; Ishii, H.A., Institute of Geophysics and Planetary Physics, Lawrence Livermore National Laboratory, Livermore, CA 94550, United States, Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, Honolulu, HI 96822, United States; Gillis-Davis, J.J., Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, Honolulu, HI 96822, United States; Ciston, J., National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States; Nielsen, M.H., Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States, Department of Materials Science and Engineering, University of California, Berkeley, CA 94720, United States; Bechtel, H.A., Advanced Light ...
推荐引用方式 GB/T 7714	Bradley J.P.,Ishii H.A.,Gillis-Davis J.J.,et al. Detection of solar wind-produced water in irradiated rims on silicate minerals[J],2014,111(5).
APA	Bradley J.P..,Ishii H.A..,Gillis-Davis J.J..,Ciston J..,Nielsen M.H..,...&Martin M.C..(2014).Detection of solar wind-produced water in irradiated rims on silicate minerals.Proceedings of the National Academy of Sciences of the United States of America,111(5).
MLA	Bradley J.P.,et al."Detection of solar wind-produced water in irradiated rims on silicate minerals".Proceedings of the National Academy of Sciences of the United States of America 111.5(2014).