Elemental composition, mineralogy and orbital parameters of the Porangaba meteorite

0539332 - FZÚ 2021 RIV US eng J - Journal Article
Ferus, M. - Petera, L. - Koukal, J. - Lenža, L. - Drtinová, B. - Haloda, J. - Matýsek, D. - Pastorek, A. - Laitl, V. - Poltronieri, R. C. - Domingues, M. W. - Gonçalves, G. - del Olmo Sato, R. - Knížek, A. - Kubelík, Petr - Křivková, A. - Srba, J. - di Pietro, C. A. - Bouša, M. - Vaculovič, T. - Civiš, S.
Elemental composition, mineralogy and orbital parameters of the Porangaba meteorite.
Icarus. Roč. 341, May (2020), s. 1-13, č. článku 113670. ISSN 0019-1035. E-ISSN 1090-2643
Institutional support: RVO:68378271
Keywords : LIBS * EDS * Porangaba
OECD category: Astronomy (including astrophysics,space science)
Impact factor: 3.508, year: 2020
Method of publishing: Limited access
https://doi.org/10.1016/j.icarus.2020.113670

The main objective of this study is to provide data on the bulk elemental composition, mineralogy and the possible origin of the Porangaba meteorite, whose fall was observed at 17:35 UT on 9 January 2015 on several sites of the state of Sao Paulo in Brazil. The surface of the meteorite was mapped by SEM and optical microscopy. The mineralogy and the bulk elemental composition of the meteorite were studied using EDS/WDS together with EBSD. The bulk elemental composition was also independently analysed by AAS, ICP-MS, LA ICP-MS and CF-LIBS. Based on the available visual camera records of the Porangaba meteorite fall, its orbit was tentatively calculated. We also present a laboratory simulation of a Porangaba-like (L4 Ordinary Chondrite) meteor emission spectra. These can be used as benchmark spectra for the identification of meteor rock types through their comparison with meteor spectra recorded by high-speed videocameras equipped with simple grating spectrographs.

Permanent Link: http://hdl.handle.net/11104/0317018