The Saricicek howardite fall in Turkey: Source crater of HED meteorites
on Vesta and impact risk of Vestoids

Unsalan, Ozan and Jenniskens, Peter and Yin, Qingzhu and Kaygisiz, Ersin
and Albers, Jim and Clark, David L. and Granvik, Mikael and Demirkol,
Iskender and Erdogan, Ibrahim Y. and Bengu, Aydin S. and Ozel, Mehmet E.
and Terzioglu, Zahide and Gi, Nayeob and Brown, Peter and Yalcinkaya,
Esref and Temel, Tugba and Prabhu, Dinesh K. and Robertson, Darrel K.
and Boslough, Mark and Ostrowski, Daniel R. and Kimberley, Jamie and Er,
Selman and Rowland, Douglas J. and Bryson, Kathryn L. and
Altunayar-Unsalan, Cisem and Ranguelov, Bogdan and Karamanov, Alexander
and Tatchev, Dragomir and Kocahan, Ozlem and Oshtrakh, I, Michael and
Maksimova, Alevtina A. and Karabanalov, Maxim S. and Verosub, Kenneth L.
and Levin, Emily and Uysal, Ibrahim and Hoffmann, Viktor and Hiroi,
Takahiro and Reddy, Vishnu and Ildiz, Gulce O. and Bolukbasi, Olcay and
Zolensky, Michael E. and Hochleitner, Rupert and Kaliwoda, Melanie and
Ongen, Sinan and Fausto, Rui and Nogueira, Bernardo A. and Chukin, V,
Andrey and Karashanova, Daniela and Semionkin, Vladimir A. and Yesiltas,
Mehmet and Glotch, Timothy and Yilmaz, Ayberk and Friedrich, Jon M. and
Sanborn, Matthew E. and Huyskens, Magdalena and Ziegler, Karen and
Williams, Curtis D. and Schoenbaechler, Maria and Bauer, Kerstin and
Meier, Matthias M. M. and Maden, Colin and Busemann, Henner and Welten,
Kees C. and Caffee, Marc W. and Laubenstein, Matthias and Zhou, Qin and
Li, Qiu-Li and Li, Xian-Hua and Liu, Yu and Tang, Guo-Qiang and Sears,
Derek W. G. and Mclain, Hannah L. and Dworkin, Jason P. and Elsila,
Jamie E. and Glavin, Daniel P. and Schmitt-Kopplin, Philippe and Ruf,
Alexander and Le Corre, Lucille and Schmedemann, Nico and Saricicek
Meteorite Consortium

Tarih

2019

Yazar

Unsalan, Ozan and Jenniskens, Peter and Yin, Qingzhu and Kaygisiz, Ersin and Albers, Jim and Clark, David L. and Granvik, Mikael and Demirkol, Iskender and Erdogan, Ibrahim Y. and Bengu, Aydin S. and Ozel, Mehmet E. and Terzioglu, Zahide and Gi, Nayeob and Brown, Peter and Yalcinkaya, Esref and Temel, Tugba and Prabhu, Dinesh K. and Robertson, Darrel K. and Boslough, Mark and Ostrowski, Daniel R. and Kimberley, Jamie and Er, Selman and Rowland, Douglas J. and Bryson, Kathryn L. and Altunayar-Unsalan, Cisem and Ranguelov, Bogdan and Karamanov, Alexander and Tatchev, Dragomir and Kocahan, Ozlem and Oshtrakh, I, Michael and Maksimova, Alevtina A. and Karabanalov, Maxim S. and Verosub, Kenneth L. and Levin, Emily and Uysal, Ibrahim and Hoffmann, Viktor and Hiroi, Takahiro and Reddy, Vishnu and Ildiz, Gulce O. and Bolukbasi, Olcay and Zolensky, Michael E. and Hochleitner, Rupert and Kaliwoda, Melanie and Ongen, Sinan and Fausto, Rui and Nogueira, Bernardo A. and Chukin, V, Andrey and Karashanova, Daniela and Semionkin, Vladimir A. and Yesiltas, Mehmet and Glotch, Timothy and Yilmaz, Ayberk and Friedrich, Jon M. and Sanborn, Matthew E. and Huyskens, Magdalena and Ziegler, Karen and Williams, Curtis D. and Schoenbaechler, Maria and Bauer, Kerstin and Meier, Matthias M. M. and Maden, Colin and Busemann, Henner and Welten, Kees C. and Caffee, Marc W. and Laubenstein, Matthias and Zhou, Qin and Li, Qiu-Li and Li, Xian-Hua and Liu, Yu and Tang, Guo-Qiang and Sears, Derek W. G. and Mclain, Hannah L. and Dworkin, Jason P. and Elsila, Jamie E. and Glavin, Daniel P. and Schmitt-Kopplin, Philippe and Ruf, Alexander and Le Corre, Lucille and Schmedemann, Nico and Saricicek Meteorite Consortium

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Özet

The Saricicek 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 Saricicek experienced a complex cosmic-ray exposure history, exposed during 12-14Ma in a regolith near the surface of a parent asteroid, and that an 1m sized meteoroid was launched by an impact 22 +/- 2Ma ago to Earth (as did one-third of all HED meteorites). SIMS dating of zircon and baddeleyite yielded 4550.4 +/- 2.5Ma and 4553 +/- 8.8Ma crystallization ages for the basaltic magma clasts. The apatite U-Pb age of 4525 +/- 17Ma, K-Ar age of 3.9Ga, and the U,Th-He ages of 1.8 +/- 0.7 and 2.6 +/- 0.3Ga are interpreted to represent thermal metamorphic and impact-related resetting ages, respectively. Petrographic; geochemical; and O-, Cr-, and Ti-isotopic studies confirm that Saricicek 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 Saricicek 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 +/- 0.8kms(-1) from NW; fragmentations at 37, 33, 31, and 27km altitude; and provide a pre-atmospheric orbit that is the first dynamical link between the normal HED meteorite clan and the inner Main Belt. Spectral data indicate the similarity of Saricicek with the Vesta asteroid family (V-class) 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 1km sized Vesta family asteroid or a 10km sized impact crater on Vesta is required to provide sufficient meteoroids 4m in size to account for the influx of meteorites from this HED clan. The 16.7km diameter Antionia impact crater on Vesta was formed on terrain of the same age as given by the He-4 retention age of Saricicek. Lunar scaling for crater production to crater counts of its ejecta blanket show it was formed 22Ma ago.

Bağlantı

http://acikerisim.bingol.edu.tr/handle/20.500.12898/2151

Koleksiyonlar

WOS İndeksli Yayınlar Koleksiyonu [374]