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The meteorite fall near Boumdeid, Mauritania, from September 14, 2011

Treść / Zawartość
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
On the evening of September 14, 2011 at 21:00 GMT a bright bolide was observed by hundreds of eyewitnesses in the area north and west of the town of Kiffa, in the department of Assaba, in south Mauritania. A terminal fragmentation and sound phenomena were observed near the end point of the trajectory. At least one mass of 3.5 kg was observed to impact and recovered the morning after the fall near Boumdeid (or Bou Mdeid), around 60 km north of Kiffa. Subsequently a large number of eyewitness accounts were recorded and mapped by GPS. The present paper provides a scenario for the trajectory of the Boumdeid (2011) meteorite based on the available parameters and wind data at the relevant altitudes. In addition the paper presents the results of the mineralogical and chemical analysis of the recovered meteorite which is consistent with a classification as ordinary chondrite of type L6, shock stage S2, and a weathering grade of W0. Following its analysis and classification, the meteorite was published under the official name Boumdeid (2011) in Meteoritical Bulletin, no. 100, MAPS 49(8), (2014). Gamma ray spectroscopy was conducted 84 days after the fall and the detection of short-lived radionuclides such as 56Co and 46Sc confirmed the recency of the event. Derived from the data of 60Co, 54Mn and 22Na the approximate preatmospheric radius of the meteorite body was 10–20cm. The report is also intended to serve as a case example for post-event data recovery and trajectory reconstruction in areas not covered by sky-camera networks and with limited scientific infrastructure.
Czasopismo
Rocznik
Strony
5--18
Opis fizyczny
Bibliogr. 33 poz., rys., tab.
Twórcy
autor
  • Meteorite Recon, Mühlendamm 86, 22087 Hamburg, Germany
  • Director Complex Scientifique Taleb Ahmed ould Toueirjenne (COMSTAT), Bp 1112 Nouakchott, Dar Naim, Mauritania
autor
  • Naturhistorisches Museum der Burgergemeinde Bern, Bernastrasse 15, CH-3005 Bern, Switzerland
  • Laboratori Nazionali del Gran Sasso, S.S.17/bis, km 18+910, I-67100 Assergi (AQ), Italy
autor
  • Rieskratermuseum, 86720 Nördlingen, Germany
Bibliografia
  • 1. Agence Nouakchott d’Information (ANI), 2011 – Mauritanie: L’explosion d’un corps étrange secoue la ville de Boumdeid. Press release, Nouakchott, Sept. 15.
  • 2. Arpesella C., 1996 – A low background counting facility at Laboratori Nazionali del Gran Sasso. Applied Radiation and Isotopes 47, 991–996.
  • 3. Bartol Neutron Monitors, 2012. http://neutronm.bartol.udel.edu/.
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  • 5. Bhandari N., Mathew K.J., Rao M.N., Herpers U., Bremer K., Vogt S., Wölfli W., Hofmann H.J., Michel R., Bodemann R., Lange H.-J., 1993 – Depth and size dependence of cosmogenic nuclide production rates in stony meteoroids. Geochimica et Cosmochimica Acta 57 (10), 2361–2375.
  • 6. Bischoff A., Jersek M., Grau T., Mirtic B., Ott U., Kučera J., Horstmann M., Laubenstein M., Herrmann S., Řanda Z., Weber M., Heusser G., 2011 – Jesenice – A new meteorite fall from Slovenia. Meteoritics & Planetary Science 46, 793–804.
  • 7. Blanchot A.J., 1975 – Plan minéral de la République Islamique de Mauritanie. Republique Islamique de Mauritanie Ministere de la planification et du developpement industriel, Direction des mines et de la geologie.
  • 8. Brearley A.J., Casanova I., Miller M.L., Keil K., 1991 – Mineralogy and possible origin of an unusual Cr-rich inclusion in the Los Martinez (L6) chondrite. Meteoritics 26 (4), 287–300.
  • 9. Britt D.T., Consolmagno G.J., 2003 – Stony meteorite porosities and densities: A review of the data through 2001. Meteoritics& Planetary Science 38, 1161–1180.
  • 10. Bronshten, V.A., 1999 – Trajectory and orbit of the Tunguska meteorite revisited. Meteoritics & Planetary Science, 34, 137–143.
  • 11. Buhl S., Baermann M., Hofmann B., Weber P., Gnos E., 2008 – Account of a meteorite fall near Bassikounou, Mauritania, on October 16, 2006, Part I: The fall and recovery of the Bassikounou meteorite. Meteorite 14 (3), 7–14.
  • 12. Buhl S., Baermann M., Hofmann B., Weber P., Gnos E., 2008 – Account of a meteorite fall near Bassikounou, Mauritania, on October 16, 2006, Part II: The Bassikounou meteorite. Meteorite 14 (4), 10–14.
  • 13. Buhl S., Baermann M., 2007 – The Bassikounou Meteorite Fall. Descriptive Catalog of the Recovered Masses, Vol. 1, until June 30, 2007. Electronic paper published on www.meteoriterecon.com.
  • 14. Carrefour de la République Islamique De Mauritanie (CRIDEM), 2011 – Chute d’une grosse météorite dans les environs de Boumdeid. Sept. 15, published on http://www.cridem.org/ C_Info.php?article=59988.
  • 15. Ceplecha Z., Borovička J., Elford W.G., Revelle D.O., Hawkes R.L., Porubčan V., Šimek M., 1998 – Meteor phenomena and bodies. Space Science Reviews 84 (3–4), 327–471.
  • 16. Clarke R.S. Jr., 1971 – Fall of the Kiffa, Mauritania, Stony Meteorite. Meteoritical Bulletin No. 50, Meteoritics Vol. 6, 114–115.
  • 17. Connolly H.C., Jr., Smith C., Benedix G., Folco L., Righter K., Zipfel J., Yamaguchi A., Chennaoui Aoudjehane H., 2007 – The Meteoritical Bulletin, No. 92, 2007 September. Meteoritics & Planetary Science 42 (9), 1647–1694.
  • 18. Eberhardt P., Geiss J., Lutz H., 1963 – Neutrons in meteorites. Earth Science and Meteoritics (Geiss J., Goldberg E.D., eds.), North-Holland, Amsterdam, 143–168.
  • 19. Graham A. L., 1979 – The Meteoritical Bulletin No. 56. Meteoritics 14, 161–174.
  • 20. Hughes R.H., Hughes J.S., 1992 – A Directory of African Wetlands. IUCN, Gland, Switzerland and Cambridge, UK, UNEP, Nairobi, Kenya and WCMC, Cambridge, UK.
  • 21. Jarosewich E., 1990 – Chemical analyses of meteorites: A compilation of stony and iron meteorite analyses. Meteoritics 25, 323–337.
  • 22. Kohman T.P., Bender M.L., 1967 – Nuclide production by cosmic rays in meteorites and on the Moon. High-Energy Nuclear Reactions in Astrophysics. In: High-Energy Nuclear Reactions in Astrophysics − A collection of articles, edited by Shen B.S.P. and Benjamin W.A., New York, N.Y., 169– 245.
  • 23. Krot A.N., Ignova M.A., 1992 – Cr-rich chondrules and inclusions in ordinary chondrites. Abstracts of the 23rd Lunar and Planetary Science Conference, 23, 729.
  • 24. Leya I., Masarik J., 2009 – Cosmogenic nuclides in stony meteorites revisited. Meteoritics & Planetary Sciences 44, 1061– 1086.
  • 25. Lomena I.S.M., Touré F., Gibson E.K., Jr., Clanton U.S., Reid A.M., 1976 – Aioun el Atrouss – A new hypersthene achondrite with eucritic inclusions. Meteoritics 11, 51 57.
  • 26. Mattick R.E., 1982 – Project report West African states (ECOWAS) region investigation, (IR)WA-5. Assessment of the petroleum, coal, and geothermal resources of the economic community of West African states (ECOWAS) region. United States Department of the Interior, US Geological Survey.
  • 27. Popova O., Borovička J., Hartmann W.K., Spurný P., Gnos E., Nemtchinov I., Trigo-Rodríguez J.M., 2011 – Very low strenghts of interplanetary meteoroids and small asteroids. Meteoritics & Planetary Science 46 (10), 1525–1550.
  • 28. Pugh R., Ruzicka A., Hutson M., Schmeer B., 2004 – Eyewitness reports for the June 3, 2004 Pacific Northwest fireball. http://astrowww.phys.uvic.ca/-tatum/fireball/, June 3, 2004.
  • 29. Ruzicka A., Grossman J.N., Garvie L., 2014 – The Meteoritical Bulletin, No. 100, 2014 June. Meteoritics & Planetary Science 49 (8), E1–E101.
  • 30. Spergel M.S., Reedy R.C., Lazareth O.W., Levy P.W., Slatest L.A., 1986 – Cosmogenic neutron-capture-produced nuclides in stony meteorites. 16th Proceedings of the Lunar & Planetary Science Conference, Journal of Geophysical Research, Supplement: 91, D483–D494.
  • 31. Wasson J.T., Kallemeyn G.W., 1988 – Compositions of Chondrites. In: Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences: 325, (1587), The Solar System: Chemistry as a Key to Its Origin, 535–544.
  • 32. Wickens G.E., Seif El Din A.G., Sita G., Nahal I., 1995 – Role of Acacia Species in the rural economy of Dry Africa and the Near East. FAO Conservation guide no. 27.
  • 33. Wimmer K., 2009 – Studies of meteorite drag-shape factors during dark flight. Bolides and Meteorite Falls, Prague, May 10–15, abstract, 25.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-231b333e-b99e-48d4-a5d8-baf5606ee63e
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