LINK<\/strong><\/a><\/p>\n\n\n\n“Highlights<\/p>\n\n\n\n
\u2022 Two Martian meteorites, Chassigny and Nakhla, were analyzed by non-destructive gamma-ray spectrometry to determine concentrations of cosmogenic 26Al.
\n\u2022 Pre-atmospheric radii of the Chassigny and Nakhla meteorites were estimated to be 17\u202f\u00b1\u202f4 and 30\u202f\u00b1\u202f5\u202fcm, respectively.
\n\u2022 Cosmic-ray exposure ages of the Chassigny and Nakhla meteorites were estimated to be 12.8\u202f\u00b1\u202f2.5 and 11.6\u202f\u00b1\u202f1.8 Myr, respectively.
\n\u2022 The obtained results are in agreement with published ages of chassignites and nakhlites.”<\/p>\n\n\n\n
“Two Martian meteorites, Chassigny and Nakhla, were analyzed by non-destructive gamma-ray spectrometry to determine concentrations of cosmogenic (26Al) and primordial (40K, 238U, 232Th) radionuclides, and to estimate their pre-atmospheric sizes and cosmic-ray exposure ages. The pre-atmospheric radii of the Chassigny and Nakhla meteorites were estimated using the cosmogenic 26Al to be 17\u202f\u00b1\u202f4 and 30\u202f\u00b1\u202f5\u202fcm, which would result in their total masses of 30\u2013130 and 210\u2013580\u202fkg, respectively. This is comparable to the size and mass estimated for other chassignites and nakhlites. The cosmic-ray exposure ages of the Chassigny and Nakhla meteorites estimated using the 26Al \u2013 21Ne isotope pair were 12.8\u202f\u00b1\u202f2.5 and 11.6\u202f\u00b1\u202f1.8 Myr, respectively, in agreement with published ages of chassignites and nakhlites averaged from several isotope methods, i.e. 11.6\u202f\u00b1\u202f0.8 and 12.2\u202f\u00b1\u202f0.8 Myr, respectively.”<\/p>\n","protected":false},"excerpt":{"rendered":"
P.P. Povinec, I. S\u00fdkora, R.J. Macke, J. T\u00f3th, L. Korno\u0161, V. Porub\u010dan Planetary and Space Science In Press, Journal Pre-proof, Available online 26 March 2020 LINK “Highlights \u2022 Two Martian meteorites, Chassigny and Nakhla, were…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45,69,54,42,44,47],"tags":[4193,466,238,5292,470,1831,1120,1849,1706,2165,383,1830,216],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/21742"}],"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=21742"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/21742\/revisions"}],"predecessor-version":[{"id":21743,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/21742\/revisions\/21743"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=21742"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21742"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21742"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}