LINK<\/strong><\/a><\/p>\n\n\n\n“Ordinary chondrites are the most common meteorites falling to Earth, which contain iron distributed among four major mineral phases: olivine, pyroxene, metallic Fe\u2013Ni and troilite. Their classical classification is based on determining the fayalite (Fa) and ferrosilite (Fs) contents in silicates using an electron microprobe. The Warsaw group developed new classification method approach that relies on M\u00f6ssbauer spectroscopy combined with multidimensional discriminant analysis and a reference database of meteorites with known petrographic types – the 4M method. In this study, we compare the classical Fa\u2013Fs classification with the 4M method for a dataset of 33 equilibrated ordinary chondrites (H, L, LL) for which both microprobe and M\u00f6ssbauer measurements are available. The M\u00f6ssbauer spectra were decomposed into subspectra corresponding to olivine, pyroxene, metallic Fe-Ni and troilite, allowing the relative distribution of iron among these phases to be quantified. The results show a clear correlation between the fayalite content and the spectral area of olivine, which is consistent with mineral condensation sequences predicted for the primordial solar nebula. In contrast, no correlation is observed between the ferrosilite content and the M\u00f6ssbauer-derived pyroxene abundance.”<\/p>\n","protected":false},"excerpt":{"rendered":"
M. Jakubowska, A. Grabias, M. Wo\u017aniak, J. Ga\u0142\u0105zka-Friedman & K. Szopa Interactions, Volume 247, article number 36, Conference Proceeding, Published: 18 February 2026 LINK “Ordinary chondrites are the most common meteorites falling to Earth, which…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[59,6,23,24,7],"tags":[1841,595,1807],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/40179"}],"collection":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=40179"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/40179\/revisions"}],"predecessor-version":[{"id":40180,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/40179\/revisions\/40180"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=40179"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=40179"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=40179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}