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Cosmic pears from the Havelland (Germany): Ribbeck, the twelfth recorded aubrite fall in history

  • Addi Bischoff (Corresponding author)
  • , Markus Patzek
  • , Jean Alix Barrat
  • , Jasper Berndt
  • , Henner Busemann
  • , Detlev Degering
  • , Tommaso Di Rocco
  • , Mattias Ek
  • , Dennis Harries
  • , Jose R.A. Godinho
  • , Dieter Heinlein
  • , Armin Kriele
  • , Daniela Krietsch
  • , Colin Maden
  • , Oscar Marchhart
  • , Rachael M. Marshal
  • , Martin Martschini
  • , Silke Merchel
  • , Andreas Möller
  • , Andreas Pack
  • Herbert Raab, Maximilian P. Reitze, Ina Rendtel, Miriam Rüfenacht, Oliver Sachs, Maria Schönbächler, Anja Schuppisser, Iris Weber, Alexander Wieser, Karl Wimmer

Publications: Contribution to journal › Article › Peer Reviewed

Abstract

In 1889 the German poet and novelist Theodor Fontane wrote the popular literary ballad “Herr von Ribbeck auf Ribbeck im Havelland.” The Squire von Ribbeck is described as a gentle and generous person, who often gives away pears from his pear trees to children passing by and continued donating pears after his death. Now, 135 years later the rock called Ribbeck is giving us insight into processes that happened 4.5 billion years ago. The meteorite Ribbeck (official find location: 52°37′15″N, 12°45′40″E) fell January 21, 2024, and has been classified as a brecciated aubrite. This meteoroid actually entered the Earth's atmosphere at 00:32:38 UTC over Brandenburg, west of Berlin, and the corresponding fireball was recorded by professional all sky and video cameras. More than 200 pieces (two proved by radionuclide analysis to belong to this fresh fall) were recovered totaling about 1.8 kg. Long-lived radionuclide and noble gas data are consistent with long cosmic ray exposure (55–62 Ma) and a preatmospheric radius of Ribbeck between 20 and 30 cm. The heavily brecciated aubrite consists of major (76 ± 3 vol%) coarse-grained FeO-free enstatite (En99.1Fs
Original languageEnglish
Pages (from-to)2660-2694
Number of pages35
JournalMeteoritics and Planetary Science
Volume59
Issue number10
Early online date31 Jul 2024
DOIs
Publication statusPublished - Oct 2024

Funding

We thank Ulla Heitmann for sample preparation and Celeste Brennecka for editorial support. We also thank the helpful reviews of Tim McCoy and of an anonymous reviewer and thank the Associate Editor A. J. Timothy Jull for the help and time. We greatly acknowledge the wonderful help with providing samples and images for our scientific work. In this respect, we thank David G\u00F6ttlich, Oliver Lenzen, Julien Liehmann, Tobias Hofmann, Peter Lindner, J\u00FCrgen Rendtel, Antal Igaz, and the members of the Arbeitskreis Meteore e. V. (AKM) for their great support and assistance. We further acknowledge Aleksandra Stojic and the VERA Team, especially Peter Steier, Stephanie Adler and Carlos Vivo Vilches for their analytical support and discussions. We also thank Doriane Delfrari (LIST) for her support of the X\u2010ray CT work. M. P., R. M. M., and O. R are funded by a Sofja Kovalevskaja Award of the Alexander von Humboldt Foundation. M. P. R is supported by the DLR funding 50 QW 2201A in the framework of the BepiColombo mission. This work has partially been carried out within the framework of the NCCR PlanetS supported by the Swiss NSF under 51NF40_205606 (H.B., M.E., M.R., M.S.) and grant SNF_219860 (D.K., H.B.). Open Access funding enabled and organized by Projekt DEAL.

Austrian Fields of Science 2012

  • 105102 General geophysics
  • 103038 Space exploration

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