Philipp R Heck1,2, Jennika Greer1,2, Joseph S Boesenberg3, Audrey Bouvier4,5, Marc W Caffee6,7, William S Cassata8, Catherine Corrigan9, Andrew M Davis1,2,10, Donald W Davis11, Marc Fries12, Mike Hankey13, Peter Jenniskens14,15, Philippe Schmitt-Kopplin16, Shannon Sheu2, Reto Trappitsch8, Michael Velbel9,17, Brandon Weller18, Kees Welten19, Qing-Zhu Yin20, Matthew E Sanborn20, Karen Ziegler21, Douglas Rowland22, Kenneth L Verosub20, Qin Zhou23, Yu Liu24, Guoqiang Tang24, Qiuli Li24, Xianhua Li24, Zoltan Zajacz11. 1. Robert A. Pritzker Center for Meteoritics and Polar Studies Negaunee Integrative Research Center The Field Museum of Natural History 1400 South Lake Shore Drive Chicago Illinois 60605 USA. 2. Chicago Center for Cosmochemistry and Department of the Geophysical Sciences The University of Chicago 5734 South Ellis Avenue Chicago Illinois 60637-1433 USA. 3. Department of Earth, Environmental and Planetary Sciences Brown University 324 Brook Street Box 1846 Providence Rhode Islands 02912 USA. 4. Bayerisches Geoinstitut Universität Bayreuth Universitätsstraße 30 95447 Bayreuth Germany. 5. Department of Earth Sciences University of Western Ontario BGS 1026, 1151 Richmond Street London Ontario N6A 5B7 Canada. 6. Department of Physics and Astronomy Purdue University West Lafayette Indiana 47906 USA. 7. Department of Earth, Atmospheric, and Planetary Sciences Purdue University West Lafayette Indiana 47906 USA. 8. Nuclear and Chemical Sciences Division Lawrence Livermore National Laboratory 7000 East Avenue (L-235) Livermore California 94550 USA. 9. Department of Mineral Sciences National Museum of Natural History Smithsonian Institution 10th St and Constitution Ave, NW Washington District of Columbia USA. 10. Enrico Fermi Institute The University of Chicago 5734 South Ellis Avenue Chicago Illinois 60637-1433 USA. 11. Department of Earth Sciences University of Toronto 22 Russell St Toronto Ontario M5S 3B1 Canada. 12. Astromaterials Research and Exploration Science Division NASA Johnson Space Center Mail Code XI2 Building 31 Houston Texas USA. 13. American Meteor Society 54 Westview Crescent Geneseo New York 14454 USA. 14. SETI Institute 189 Bernardo Avenue Mountain View California 94043 USA. 15. NASA Ames Research Center Moffett Field California 94035 USA. 16. Helmholtz Zentrum München Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH), Ingolstädter Landstr. 1 85764 Neuherberg Germany. 17. Department of Earth and Environmental Sciences Michigan State University 288 Farm Lane, 207 Natural Sciences Building East Lansing Michigan 48824 USA. 18. Albany Medical College 43 New Scotland Ave Albany New York 12208 USA. 19. Space Sciences Laboratory University of California 7 Gauss Way Berkeley California 94720-7450 USA. 20. Department of Earth and Planetary Sciences University of California at Davis One Shields Avenue Davis California 95616 USA. 21. Institute of Meteoritics University of New Mexico 221 Yale Blvd NE, 313 Northrop Hall Albuquerque New Mexico 87131 USA. 22. Center for Molecular and Genomic Imaging University of California at Davis Davis California 95616 USA. 23. National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China. 24. State Key Laboratory of Lithospheric Evolution Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China.
Abstract
The Hamburg meteorite fell on January 16, 2018, near Hamburg, Michigan, after a fireball event widely observed in the U.S. Midwest and in Ontario, Canada. Several fragments fell onto frozen surfaces of lakes and, thanks to weather radar data, were recovered days after the fall. The studied rock fragments show no or little signs of terrestrial weathering. Here, we present the initial results from an international consortium study to describe the fall, characterize the meteorite, and probe the collision history of Hamburg. About 1 kg of recovered meteorites was initially reported. Petrology, mineral chemistry, trace element and organic chemistry, and O and Cr isotopic compositions are characteristic of H4 chondrites. Cosmic ray exposure ages based on cosmogenic 3He, 21Ne, and 38Ar are ~12 Ma, and roughly agree with each other. Noble gas data as well as the cosmogenic 10Be concentration point to a small 40-60 cm diameter meteoroid. An 40Ar-39Ar age of 4532 ± 24 Ma indicates no major impact event occurring later in its evolutionary history, consistent with data of other H4 chondrites. Microanalyses of phosphates with LA-ICPMS give an average Pb-Pb age of 4549 ± 36 Ma. This is in good agreement with the average SIMS Pb-Pb phosphate age of 4535.3 ± 9.5 Ma and U-Pb Concordia age of 4535 ± 10 Ma. The weighted average age of 4541.6 ± 9.5 Ma reflects the metamorphic phosphate crystallization age after parent body formation in the early solar system.
Tn class="Chemical">he Hamburg meteorite fell on January 16, 2018, near Hamburg, Michigan, after a fireball event widely observed in theU.S. Midwest and in Ontario, Canada. Several fragments fell onto frozen surfaces of lakes and, thanks to weather radar data, were recovered days after the fall. The studied rock fragments show no or little signs of terrestrial weathering. Here, we present the initial results from an internationalconsortium study to describe the fall, characterize the meteorite, and probe thecollision history of Hamburg. About 1 kg of recovered meteorites was initially reported. Petrology, mineral chemistry, trace element and organic chemistry, and O and Cr isotopic compositions are characteristic of H4 chondrites. Cosmic ray exposure ages based on cosmogenic 3He, 21Ne, and 38Arare ~12 Ma, and roughly agree with each other. Noble gas data as well as thecosmogenic 10Be concentration point to a small 40-60 cm diameter meteoroid. An 40Ar-39Ar age of 4532 ± 24 Ma indicates no major impact event occurring later in its evolutionary history, consistent with data of other H4 chondrites. Microanalyses of phosphates with LA-ICPMS give an average Pb-Pb age of 4549 ± 36 Ma. This is in good agreement with the average SIMS Pb-Pb phosphate age of 4535.3 ± 9.5 Ma and U-PbConcordia age of 4535 ± 10 Ma. The weighted average age of 4541.6 ± 9.5 Ma reflects the metamorphic phosphatecrystallization age after parent body formation in the early solar system.
Authors: Mario Trieloff; Elmar K Jessberger; Ingrid Herrwerth; Jens Hopp; Christine Fiéni; Marianne Ghélis; Michèle Bourot-Denise; Paul Pellas Journal: Nature Date: 2003-04-03 Impact factor: 49.962
Authors: Olga P Popova; Peter Jenniskens; Vacheslav Emel'yanenko; Anna Kartashova; Eugeny Biryukov; Sergey Khaibrakhmanov; Valery Shuvalov; Yurij Rybnov; Alexandr Dudorov; Victor I Grokhovsky; Dmitry D Badyukov; Qing-Zhu Yin; Peter S Gural; Jim Albers; Mikael Granvik; Läslo G Evers; Jacob Kuiper; Vladimir Kharlamov; Andrey Solovyov; Yuri S Rusakov; Stanislav Korotkiy; Ilya Serdyuk; Alexander V Korochantsev; Michail Yu Larionov; Dmitry Glazachev; Alexander E Mayer; Galen Gisler; Sergei V Gladkovsky; Josh Wimpenny; Matthew E Sanborn; Akane Yamakawa; Kenneth L Verosub; Douglas J Rowland; Sarah Roeske; Nicholas W Botto; Jon M Friedrich; Michael E Zolensky; Loan Le; Daniel Ross; Karen Ziegler; Tomoki Nakamura; Insu Ahn; Jong Ik Lee; Qin Zhou; Xian-Hua Li; Qiu-Li Li; Yu Liu; Guo-Qiang Tang; Takahiro Hiroi; Derek Sears; Ilya A Weinstein; Alexander S Vokhmintsev; Alexei V Ishchenko; Phillipe Schmitt-Kopplin; Norbert Hertkorn; Keisuke Nagao; Makiko K Haba; Mutsumi Komatsu; Takashi Mikouchi Journal: Science Date: 2013-11-07 Impact factor: 47.728
Authors: Peter Jenniskens; Marc D Fries; Qing-Zhu Yin; Michael Zolensky; Alexander N Krot; Scott A Sandford; Derek Sears; Robert Beauford; Denton S Ebel; Jon M Friedrich; Kazuhide Nagashima; Josh Wimpenny; Akane Yamakawa; Kunihiko Nishiizumi; Yasunori Hamajima; Marc W Caffee; Kees C Welten; Matthias Laubenstein; Andrew M Davis; Steven B Simon; Philipp R Heck; Edward D Young; Issaku E Kohl; Mark H Thiemens; Morgan H Nunn; Takashi Mikouchi; Kenji Hagiya; Kazumasa Ohsumi; Thomas A Cahill; Jonathan A Lawton; David Barnes; Andrew Steele; Pierre Rochette; Kenneth L Verosub; Jérôme Gattacceca; George Cooper; Daniel P Glavin; Aaron S Burton; Jason P Dworkin; Jamie E Elsila; Sandra Pizzarello; Ryan Ogliore; Phillipe Schmitt-Kopplin; Mourad Harir; Norbert Hertkorn; Alexander Verchovsky; Monica Grady; Keisuke Nagao; Ryuji Okazaki; Hiroyuki Takechi; Takahiro Hiroi; Ken Smith; Elizabeth A Silber; Peter G Brown; Jim Albers; Doug Klotz; Mike Hankey; Robert Matson; Jeffrey A Fries; Richard J Walker; Igor Puchtel; Cin-Ty A Lee; Monica E Erdman; Gary R Eppich; Sarah Roeske; Zelimir Gabelica; Michael Lerche; Michel Nuevo; Beverly Girten; Simon P Worden Journal: Science Date: 2012-12-21 Impact factor: 47.728
Authors: Alexander Ruf; Basem Kanawati; Norbert Hertkorn; Qing-Zhu Yin; Franco Moritz; Mourad Harir; Marianna Lucio; Bernhard Michalke; Joshua Wimpenny; Svetlana Shilobreeva; Basil Bronsky; Vladimir Saraykin; Zelimir Gabelica; Régis D Gougeon; Eric Quirico; Stefan Ralew; Tomasz Jakubowski; Henning Haack; Michael Gonsior; Peter Jenniskens; Nancy W Hinman; Philippe Schmitt-Kopplin Journal: Proc Natl Acad Sci U S A Date: 2017-02-27 Impact factor: 11.205