LINK<\/strong><\/a><\/p>\n\n\n\n“X-ray diffraction (XRD), Fields Emission Scanning Electron Microscope (FE-SEM) with EDS and M\u00f6ssbauer Spectroscopy (MS), were applied to investigate a newly fallen solid piece of debris named the Aba Panu meteorite, after a city in south western Nigeria (Lat: N 08\u00b0 14\u2032 25.7\u2033 and Long: E 003\u00b0 33\u2032 47.0\u2033). Matching X-ray diffraction results, together with the FE-SEM analysis confirms the presence of four kinds of iron-bearing minerals, namely olivine, pyroxene, kamacite (Fe-Ni alloys) and troilite (FeS). The M\u00f6ssbauer spectra recorded at 295 K and 78 K consist of two strong paramagnetic doublets emanating from olivine of quadrupole splitting 2.9 mm\/s and pyroxene of quadrupole splitting 2.1 mm\/s. These are superimposed on two magnetic sub-spectra attributed to kamacite and troilite phases. From the M\u00f6ssbauer sub-spectra absorption area, the ratio of the olivine absorption area to the pyroxene absorption area indicates that the meteorite can be classified as an L-ordinary chondrite. The mole fraction of the Fe end-member of olivine (fayalite) and the orthopyroxene (ferrosilite) calculated from the EDS data will be used to identify the petrographic type of the meteorite.”<\/p>\n","protected":false},"excerpt":{"rendered":"
Abbasher Gismelssed, Olugbenga Okunlola, Ahmed Al-Rawas, Ali Yousif, Matthew Oyedokun, Jacob Adetunji, Hisham Widatallah, Mohamed Elzai Hyperfine Interactions December 2020, 241:22 LINK “X-ray diffraction (XRD), Fields Emission Scanning Electron Microscope (FE-SEM) with EDS and M\u00f6ssbauer…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5335,23,7,47],"tags":[5334,3188,595,1807,1832,2693],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/20969"}],"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=20969"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/20969\/revisions"}],"predecessor-version":[{"id":20970,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/20969\/revisions\/20970"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=20969"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=20969"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=20969"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}