DC pole | Wartość | Język |
dc.contributor.author | Woźniak, Marek | - |
dc.contributor.author | Gałązka-Friedman, Jolanta | - |
dc.contributor.author | Duda, Przemysław | - |
dc.contributor.author | Jakubowska, Martyna | - |
dc.contributor.author | Rzepecka, Patrycja | - |
dc.contributor.author | Karwowski, Łukasz | - |
dc.date.accessioned | 2019-08-30T05:35:19Z | - |
dc.date.available | 2019-08-30T05:35:19Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Meteoritics & Planetary Science, Vol. 54, iss. 8 (2019), s. 1828-1839 | pl_PL |
dc.identifier.issn | 1086-9379 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12128/10699 | - |
dc.description.abstract | Mossbauer spectra of equilibrated ordinary chondrites consist of two doublets due
to paramagnetic iron present in olivines and pyroxenes and two sextets due to magnetically
ordered iron present in metallic phases and troilite. The spectral areas of the different
mineralogical phases found by M€ossbauer spectroscopy in meteorites are proportional to
the number of iron atoms in this mineralogical phase. This property of M€ossbauer spectra
can be the basis for constructing a method for the classification of ordinary chondrites. This
idea was first explored at the M€ossbauer Laboratory in Kanpur. This group suggested a
qualitative method based on 2-dimensional plots of M€ossbauer spectral areas and thus
classified properly some meteorites. We constructed a quantitative method using M€ossbauer
spectral areas, multidimensional discriminant analysis, and Mahalanobis distance (4M
method) to determine the probability of a meteorite to be of type H, L, or LL. Based on
59 M€ossbauer spectra, we calculated by the 4M method, Scluster, the level of similarity of the
Goronyo meteorite to the clusters. On the plot of ferrosilite versus fayalite, the point
representing Goronyo is located on the border between H and L areas. Calculated by the
4M method, the meteorite Goronyo is 32% similar to type H, 75% to type L, and 11% to
type LL. Additional mineralogical analyses suggested that the Goronyo meteorite would be
classified as type L, although it was originally reported as type H in the Meteoritical Bulletin Database. | pl_PL |
dc.language.iso | en | pl_PL |
dc.rights | Uznanie autorstwa-Bez utworów zależnych 3.0 Polska | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nd/3.0/pl/ | * |
dc.subject | Mahalanobis distance | pl_PL |
dc.subject | Mossbauer spectroscopy | pl_PL |
dc.title | Application of Mossbauer spectroscopy, multidimensional discriminant analysis, and Mahalanobis distance for classification of equilibrated ordinary chondrites | pl_PL |
dc.type | info:eu-repo/semantics/article | pl_PL |
dc.relation.journal | Meteoritics & Planetary Science | pl_PL |
dc.identifier.doi | 10.1111/maps.13314 | - |
Pojawia się w kolekcji: | Artykuły (WNP)
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