Jesenice—A new meteorite fall from Slovenia
Identifieur interne : 000977 ( Istex/Curation ); précédent : 000976; suivant : 000978Jesenice—A new meteorite fall from Slovenia
Auteurs : Addi Bischoff [Allemagne] ; Miha Jersek [Slovénie] ; Thomas Grau [Allemagne] ; Breda Mirtic [Slovénie] ; Ulrich Ott [Allemagne] ; Jan Ku Era [République tchèque] ; Marian Horstmann [Allemagne] ; Matthias Laubenstein [Italie] ; Siegfried Herrmann [Allemagne] ; Zden K Anda [République tchèque] ; Marc Weber [Allemagne] ; Gerd Heusser [Allemagne]Source :
- Meteoritics & Planetary Science [ 1086-9379 ] ; 2011-06.
Abstract
Abstract– On April 9, 2009, at 3:00 CEST, a very bright fireball appeared over Carinthia and the Karavanke Mountains. The meteoroid entered the atmosphere at a very steep angle and disintegrated into a large number of objects. Two main objects were seen as separate fireballs up to an altitude of approximately 5 km, and witnesses reported loud explosions. Three stones were found with a total weight of approximately 3.611 kg. The measured activity of short‐lived cosmogenic radionuclides clearly indicates that two specimens result from a very recent meteorite fall. All cosmogenic radionuclide concentrations suggest a rather small preatmospheric radius of <20 cm; a nominal cosmic‐ray exposure age based on 21Ne is approximately 4 Ma, but the noble gas and radionuclide results in combination indicate a complex irradiation. Jesenice is a highly recrystallized rock with only a few relic chondrules visible in hand specimen and thin section. The texture, the large grain size of plagioclase, and the homogeneous compositions of olivines and pyroxenes clearly indicate that Jesenice is a L6 chondrite. The bulk composition of Jesenice is very close to the published average element concentration for L ordinary chondrites. The chondrite is weakly shocked (S3) as indicated by the undulatory extinction in olivine and plagioclase and the presence of planar fractures in olivine. Being weakly shocked and with gas retention ages of >1.7 Ga (4He) and approximately 4.3 Ga (40Ar), Jesenice seems not to have been strongly affected by the catastrophic disruption of the L‐chondrite parent body approximately 500 Ma ago.
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DOI: 10.1111/j.1945-5100.2011.01191.x
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of Sciences of the Czech Republic, CZ‐250 68 Řež near Prague, Czech Republic</mods:affiliation><country xml:lang="fr">République tchèque</country><wicri:regionArea>Nuclear Physics Institute, Academy of Sciences of the Czech Republic, CZ‐250 68 Řež near Prague</wicri:regionArea></affiliation></author><author><name sortKey="Weber, Marc" sort="Weber, Marc" uniqKey="Weber M" first="Marc" last="Weber">Marc Weber</name><affiliation wicri:level="1"><mods:affiliation>Max‐Planck‐Institut für Kernphysik, Postfach 103980, 69029 Heidelberg, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max‐Planck‐Institut für Kernphysik, Postfach 103980, 69029 Heidelberg</wicri:regionArea></affiliation></author><author><name sortKey="Heusser, Gerd" sort="Heusser, Gerd" uniqKey="Heusser G" first="Gerd" last="Heusser">Gerd Heusser</name><affiliation wicri:level="1"><mods:affiliation>Max‐Planck‐Institut für Kernphysik, Postfach 103980, 69029 Heidelberg, 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last="Bischoff">Addi Bischoff</name><affiliation wicri:level="1"><mods:affiliation>Institut für Planetologie, Wilhelm‐Klemm‐Str. 10, 48149 Münster, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institut für Planetologie, Wilhelm‐Klemm‐Str. 10, 48149 Münster</wicri:regionArea></affiliation></author><author><name sortKey="Jersek, Miha" sort="Jersek, Miha" uniqKey="Jersek M" first="Miha" last="Jersek">Miha Jersek</name><affiliation wicri:level="1"><mods:affiliation>Slovenian Museum of Natural History, Presernova 20, SI‐1000 Ljubljana, Slovenia</mods:affiliation><country xml:lang="fr">Slovénie</country><wicri:regionArea>Slovenian Museum of Natural History, Presernova 20, SI‐1000 Ljubljana</wicri:regionArea></affiliation></author><author><name sortKey="Grau, Thomas" sort="Grau, Thomas" uniqKey="Grau T" first="Thomas" last="Grau">Thomas Grau</name><affiliation wicri:level="1"><mods:affiliation>European Research Center for Fireballs and Meteorites (ERFM), Puschkinstraße 23, 16321 Bernau bei Berlin, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>European Research Center for Fireballs and Meteorites (ERFM), Puschkinstraße 23, 16321 Bernau bei Berlin</wicri:regionArea></affiliation></author><author><name sortKey="Mirtic, Breda" sort="Mirtic, Breda" uniqKey="Mirtic B" first="Breda" last="Mirtic">Breda Mirtic</name><affiliation wicri:level="1"><mods:affiliation>Department of Geology, Faculty of Natural Sciences and Engineering, University of Ljubljana, SI‐1000 Ljubljana, Slovenia</mods:affiliation><country xml:lang="fr">Slovénie</country><wicri:regionArea>Department of Geology, Faculty of Natural Sciences and Engineering, University of Ljubljana, SI‐1000 Ljubljana</wicri:regionArea></affiliation></author><author><name sortKey="Ott, Ulrich" sort="Ott, Ulrich" uniqKey="Ott U" first="Ulrich" last="Ott">Ulrich Ott</name><affiliation wicri:level="1"><mods:affiliation>Abteilung Biogeochemie, Max‐Planck‐Institut für Chemie, Joh.‐J.‐Becher‐Weg 27, 55128 Mainz, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Abteilung Biogeochemie, Max‐Planck‐Institut für Chemie, Joh.‐J.‐Becher‐Weg 27, 55128 Mainz</wicri:regionArea></affiliation></author><author><name sortKey="Ku Era, Jan" sort="Ku Era, Jan" uniqKey="Ku Era J" first="Jan" last="Ku Era">Jan Ku Era</name><affiliation wicri:level="1"><mods:affiliation>Nuclear Physics Institute, Academy of Sciences of the Czech Republic, CZ‐250 68 Řež near Prague, Czech Republic</mods:affiliation><country xml:lang="fr">République tchèque</country><wicri:regionArea>Nuclear Physics Institute, Academy of Sciences of the Czech Republic, CZ‐250 68 Řež near Prague</wicri:regionArea></affiliation><affiliation wicri:level="1"><mods:affiliation>Research Center Řež, Ltd., CZ‐250 68 Řež, Czech Republic</mods:affiliation><country xml:lang="fr">République tchèque</country><wicri:regionArea>Research Center Řež, Ltd., CZ‐250 68 Řež</wicri:regionArea></affiliation></author><author><name sortKey="Horstmann, Marian" sort="Horstmann, Marian" uniqKey="Horstmann M" first="Marian" last="Horstmann">Marian Horstmann</name><affiliation wicri:level="1"><mods:affiliation>Institut für Planetologie, Wilhelm‐Klemm‐Str. 10, 48149 Münster, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institut für Planetologie, Wilhelm‐Klemm‐Str. 10, 48149 Münster</wicri:regionArea></affiliation></author><author><name sortKey="Laubenstein, Matthias" sort="Laubenstein, Matthias" uniqKey="Laubenstein M" first="Matthias" last="Laubenstein">Matthias Laubenstein</name><affiliation wicri:level="1"><mods:affiliation>Laboratori Nazionali del Gran Sasso – I.N.F.N., S.S.17/bis, km 18+910, I‐67010 Assergi (AQ), Italy</mods:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>Laboratori Nazionali del Gran Sasso – I.N.F.N., S.S.17/bis, km 18+910, I‐67010 Assergi (AQ)</wicri:regionArea></affiliation></author><author><name sortKey="Herrmann, Siegfried" sort="Herrmann, Siegfried" uniqKey="Herrmann S" first="Siegfried" last="Herrmann">Siegfried Herrmann</name><affiliation wicri:level="1"><mods:affiliation>Abteilung Biogeochemie, Max‐Planck‐Institut für Chemie, Joh.‐J.‐Becher‐Weg 27, 55128 Mainz, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Abteilung Biogeochemie, Max‐Planck‐Institut für Chemie, Joh.‐J.‐Becher‐Weg 27, 55128 Mainz</wicri:regionArea></affiliation></author><author><name sortKey=" Anda, Zden K" sort=" Anda, Zden K" uniqKey=" Anda Z" first="Zden K" last=" Anda">Zden K Anda</name><affiliation wicri:level="1"><mods:affiliation>Nuclear Physics Institute, Academy of Sciences of the Czech Republic, CZ‐250 68 Řež near Prague, Czech Republic</mods:affiliation><country xml:lang="fr">République tchèque</country><wicri:regionArea>Nuclear Physics Institute, Academy of Sciences of the Czech Republic, CZ‐250 68 Řež near Prague</wicri:regionArea></affiliation></author><author><name sortKey="Weber, Marc" sort="Weber, Marc" uniqKey="Weber M" first="Marc" last="Weber">Marc Weber</name><affiliation wicri:level="1"><mods:affiliation>Max‐Planck‐Institut für Kernphysik, Postfach 103980, 69029 Heidelberg, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max‐Planck‐Institut für Kernphysik, Postfach 103980, 69029 Heidelberg</wicri:regionArea></affiliation></author><author><name sortKey="Heusser, Gerd" sort="Heusser, Gerd" uniqKey="Heusser G" first="Gerd" last="Heusser">Gerd Heusser</name><affiliation wicri:level="1"><mods:affiliation>Max‐Planck‐Institut für Kernphysik, Postfach 103980, 69029 Heidelberg, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Max‐Planck‐Institut für Kernphysik, Postfach 103980, 69029 Heidelberg</wicri:regionArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Meteoritics & Planetary Science</title><idno type="ISSN">1086-9379</idno><idno type="eISSN">1945-5100</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2011-06">2011-06</date><biblScope unit="volume">46</biblScope><biblScope unit="issue">6</biblScope><biblScope unit="page" from="793">793</biblScope><biblScope unit="page" to="804">804</biblScope></imprint><idno type="ISSN">1086-9379</idno></series><idno type="istex">DB8113B9614DFC9BE7681347A05B7D98CB2BA5E7</idno><idno type="DOI">10.1111/j.1945-5100.2011.01191.x</idno><idno type="ArticleID">MAPS1191</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1086-9379</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">Abstract– On April 9, 2009, at 3:00 CEST, a very bright fireball appeared over Carinthia and the Karavanke Mountains. The meteoroid entered the atmosphere at a very steep angle and disintegrated into a large number of objects. Two main objects were seen as separate fireballs up to an altitude of approximately 5 km, and witnesses reported loud explosions. Three stones were found with a total weight of approximately 3.611 kg. The measured activity of short‐lived cosmogenic radionuclides clearly indicates that two specimens result from a very recent meteorite fall. All cosmogenic radionuclide concentrations suggest a rather small preatmospheric radius of <20 cm; a nominal cosmic‐ray exposure age based on 21Ne is approximately 4 Ma, but the noble gas and radionuclide results in combination indicate a complex irradiation. Jesenice is a highly recrystallized rock with only a few relic chondrules visible in hand specimen and thin section. The texture, the large grain size of plagioclase, and the homogeneous compositions of olivines and pyroxenes clearly indicate that Jesenice is a L6 chondrite. The bulk composition of Jesenice is very close to the published average element concentration for L ordinary chondrites. The chondrite is weakly shocked (S3) as indicated by the undulatory extinction in olivine and plagioclase and the presence of planar fractures in olivine. Being weakly shocked and with gas retention ages of >1.7 Ga (4He) and approximately 4.3 Ga (40Ar), Jesenice seems not to have been strongly affected by the catastrophic disruption of the L‐chondrite parent body approximately 500 Ma ago.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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