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Tin in a chondritic interplanetary dust particleSubmicron platey Sn-rich grains are present in chondritic porous interplanetary dust particle (IDP) W7029 A and it is the second occurrence of a tin mineral in a stratospheric micrometeorite. Selected Area Electron Diffraction data for the Sn-rich grains match with Sn2O3 and Sn3O4. The oxide(s) may have formed in the solar nebula when tin metal catalytically supported reduction of CO or during flash heating on atmospheric entry of the IDP. The presence of tin is consistent with enrichments for other volatile trace elements in chondritic IDPs and may signal an emerging trend toward nonchondritic volatile element abundances in chondritic IDPs. The observation confirms small-scale mineralogical heterogeneity in fine-grained chondritic porous interplanetary dust.
Document ID
19890056998
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Rietmeijer, Frans J. M.
(New Mexico, University Albuquerque, United States)
Date Acquired
August 14, 2013
Publication Date
March 1, 1989
Publication Information
Publication: Meteoritics
Volume: 24
ISSN: 0026-1114
Subject Category
Astrophysics
Accession Number
89A44369
Funding Number(s)
CONTRACT_GRANT: NAG9-160
Distribution Limits
Public
Copyright
Other

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