{"id":18159,"date":"2019-03-18T07:51:25","date_gmt":"2019-03-18T06:51:25","guid":{"rendered":"http:\/\/karmaka.de\/?p=18159"},"modified":"2021-02-09T07:27:21","modified_gmt":"2021-02-09T06:27:21","slug":"the-saricicek-howardite-fall-in-turkey-source-crater-of-hed-meteorites-on-vesta-and-impact-risk-of-vestoids","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=18159","title":{"rendered":"The Sari\u00e7i\u00e7ek howardite fall in Turkey: Source crater of HED meteorites on Vesta and impact risk of VestoidsOPEN ACCESS<\/span> "},"content":{"rendered":"\n

Ozan Unsalan, Peter Jenniskens, Qing\u2010Zhu Yin, Ersin Kaygisiz, Jim Albers, David L. Clark, Mikael Granvik, Iskender Demirkol, Ibrahim Y. Erdogan, Aydin S. Bengu, Mehmet E. \u00d6zel, Zahide Terzioglu, Nayeob Gi, Peter Brown, Esref Yalcinkaya, Tu\u011fba Temel, Dinesh K. Prabhu, Darrel K. Robertson, Mark Boslough, Daniel R. Ostrowski, Jamie Kimberley, Selman Er, Douglas J. Rowland, Kathryn L. Bryson, Cisem Altunayar\u2010Unsalan, Bogdan Ranguelov, Alexander Karamanov, Dragomir Tatchev, \u00d6zlem Kocahan, Michael I. Oshtrakh, Alevtina A. Maksimova, Maxim S. Karabanalov, Kenneth L. Verosub, Emily Levin, Ibrahim Uysal, Viktor Hoffmann, Takahiro Hiroi, Vishnu Reddy, Gulce O. Ildiz, Olcay Bolukbasi, Michael E. Zolensky, Rupert Hochleitner, Melanie Kaliwoda, Sinan \u00d6ngen, Rui Fausto, Bernardo A. Nogueira, Andrey V. Chukin, Daniela Karashanova,Vladimir A. Semionkin, Mehmet Ye\u015filta\u015f, Timothy Glotch, Ayberk Yilmaz, Jon M. Friedrich, Matthew E. Sanborn, Magdalena Huyskens, Karen Ziegler, Curtis D. Williams, Maria Sch\u00f6nb\u00e4chler, Kerstin Bauer, Matthias M. M. Meier, Colin Maden, Henner Busemann, Kees C. Welten, Marc W. Caffee, Matthias Laubenstein, Qin Zhou, Qiu\u2010Li Li, Xian\u2010Hua Li, Yu Liu, Guo\u2010Qiang Tang, Derek W. G. Sears, Hannah L. Mclain, Jason P. Dworkin, Jamie E. Elsila, Daniel P. Glavin, Philippe Schmitt\u2010Kopplin, Alexander Ruf, Lucille LE Corre, Nico Schmedemann, (The Sari\u00e7i\u00e7ek Meteorite Consortium)<\/p>\n\n\n\n

Meteoritics & Planetary Science
\nFirst Published: 17 March 2019<\/p>\n\n\n\n

LINK<\/strong><\/a> <\/p>\n\n\n\n

Update (9 February 2021): PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n\n\n\n

“The Sari\u00e7i\u00e7ek howardite meteorite shower consisting of 343 documented stones occurred on September 2, 2015 in Turkey and is the first documented howardite fall. Cosmogenic isotopes show that Sari\u00e7i\u00e7ek experienced a complex cosmic\u2010ray exposure history, exposed during ~12\u201314 Ma in a regolith near the surface of a parent asteroid, and that an ~1 m sized meteoroid was launched by an impact 22 \u00b1 2 Ma ago to Earth (as did one\u2010third of all HED meteorites). SIMS dating of zircon and baddeleyite yielded 4550.4 \u00b1 2.5 Ma and 4553 \u00b1 8.8 Ma crystallization ages for the basaltic magma clasts. The apatite U\u2010Pb age of 4525 \u00b1 17 Ma, K\u2010Ar age of ~3.9 Ga, and the U,Th\u2010He ages of 1.8 \u00b1 0.7 and 2.6 \u00b1 0.3 Ga are interpreted to represent thermal metamorphic and impact\u2010related resetting ages, respectively. Petrographic; geochemical; and O\u2010, Cr\u2010, and Ti\u2010isotopic studies confirm that Sari\u00e7i\u00e7ek belongs to the normal clan of HED meteorites. Petrographic observations and analysis of organic material indicate a small portion of carbonaceous chondrite material in the Sari\u00e7i\u00e7ek regolith and organic contamination of the meteorite after a few days on soil. Video observations of the fall show an atmospheric entry at 17.3 \u00b1 0.8 km s\u22121 from NW; fragmentations at 37, 33, 31, and 27 km altitude; and provide a pre\u2010atmospheric orbit that is the first dynamical link between the normal HED meteorite clan and the inner Main Belt. Spectral data indicate the similarity of Sari\u00e7i\u00e7ek with the Vesta asteroid family (V\u2010class) spectra, a group of asteroids stretching to delivery resonances, which includes (4) Vesta. Dynamical modeling of meteoroid delivery to Earth shows that the complete disruption of a ~1 km sized Vesta family asteroid or a ~10 km sized impact crater on Vesta is required to provide sufficient meteoroids \u22644 m in size to account for the influx of meteorites from this HED clan. The 16.7 km diameter Antionia impact crater on Vesta was formed on terrain of the same age as given by the 4He retention age of Sari\u00e7i\u00e7ek. Lunar scaling for crater production to crater counts of its ejecta blanket show it was formed ~22 Ma ago.”<\/p>\n","protected":false},"excerpt":{"rendered":"

Ozan Unsalan, Peter Jenniskens, Qing\u2010Zhu Yin, Ersin Kaygisiz, Jim Albers, David L. Clark, Mikael Granvik, Iskender Demirkol, Ibrahim Y. Erdogan, Aydin S. Bengu, Mehmet E. \u00d6zel, Zahide Terzioglu, Nayeob Gi, Peter Brown, Esref Yalcinkaya, Tu\u011fba…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,34,2092,47],"tags":[1822,2093,1832],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/18159"}],"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=18159"}],"version-history":[{"count":2,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/18159\/revisions"}],"predecessor-version":[{"id":26112,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/18159\/revisions\/26112"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18159"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18159"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}