Thermal and shock history of Almahata Sitta meteorite inferred from structure refinement of pyroxene and Mössbauer spectroscopy of Fe‐Ni metal

The crystal structures of orthopyroxene (En86.3Fs8.6Wo5.1, space group Pbca) and pigeonite (En81.7Fs8.8Wo9.5, space group P21/c) from the Almahata Sitta ureilite (fragment#051) have been refined to R1 indices of 3.10% and 2.53%, respectively, using single‐crystal X‐ray diffraction data. The unit for...

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Bibliographic Details
Published in:	Meteoritics & planetary science Vol. 58; no. 5; pp. 737 - 746
Main Authors:	Abdu, Yassir A., Gismelseed, Abbasher M., Attaelmanan, Atta G., Shaddad, Muawia H., Hawthorne, Frank C.
Format:	Journal Article
Language:	English
Published:	Hoboken Wiley Subscription Services, Inc 01-05-2023
Subjects:	Cohenite Cooling Diffraction Electron probe microanalysis Electron probes Iron Kamacite Metal particles Meteorite parent bodies Meteorites Meteors & meteorites Mossbauer spectroscopy Nickel Pyroxenes Schreibersite Silicon Spectroscopy Spectrum analysis Temperature Ureilites
Online Access:	Get full text
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