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  27 - July - 2021


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2021 Fall Date Project

The MPOD Caretakers want to present meteorite falls on their fall dates. For example, Sikhote Aline on 12 February.

This Project will not dip into the MPOD archives so the Caretakers will appreciate anything you can contribute.

To reserve a date just let us know. Thank you in advance :)

Fall Calendar           Dates reserved so far

 

 
Nadiabondi   contributed by Andreas Ruh   MetBul Link
 


Roll Overs:     #1   #2   #3   #4    


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View all entries for   Meteorite (1)   Contributor (11)


Copyright (c) Andreas Ruh.

Find/Fall Anniversary
11.8 gram individual.   H5

TKW 8.17 kg. Observed fall 27 July 1956, about 5 km west of the village of Nadiabondi, Diapaga Privince, Burkina Faso.


   
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Photo 1

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Photo 4

Found at the arrow (green or red) on the map below

 


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Andreas Ruh
 8/16/2021 4:16:09 AM
References: (1) Eugster, O., Lorenzetti, S., Kraehenbuehl, U., and Marti, K. 2007. Comparison of cosmic-ray exposure ages and trapped noble gases in chondrule and matrix samples of ordinary, enstatite, and carbonaceous chondrites. Meteoritics & Planetary Science 42, Nr 7/8, 1351*1371. (2) Otto J., Loeken T., Weber H. W., and Schultz L. 1996. Gao, Guenie, Souma - One, two, or three falls? Meteoritics & Planetary Science 31: A103 - A104.
Andreas Ruh
 8/16/2021 4:12:20 AM
Jon, I took a look to the cosmic-ray exposure ages of the two falls. Eugster et al. analyzed (among other chondrites) two samples of Nadiabondi. The analysis of matrix and 2 chondrules of the first sample yield average CRE ages around 65 - 74 Ma, whereas bulk analysis of the 2nd sample resultet in an (average) CRE Age of 20.3 Ma. For Gao-Guenie CRE-ages of 1.8 Ma (all Guenie samples, and 2 Gao samples) and ~6 Ma (two Gao samples) were reported (J. Otto et al, 1995). I would consider these sigificant differences in CRE ages as a proof that Nadiabondi was definitely a separate fall from Gao. But I do not have other publications in mind. References: (1) Eugster, O., Lorenzetti, S., Kr*henb*hl, U., Marti, K. 2007. Comparison of cosmic-ray exposure ages and trapped noble gases in chondrule and matrix samples ... (2) Otto J., Loeken T., Weber H. W., and Schultz L. 1996. Gao, G*eni*, Souma*One, two, or three falls? Meteoritics & Planetary Science 31: A103* A104.
Jon Taylor
 8/5/2021 1:42:25 PM
I'm assuming they finally proved that Nadiabondi was definitely a separate fall from Gao, correct? I recall some ongoing debate in the past. Either way, a nice little individual!
Mike Murray
 7/27/2021 8:39:25 PM
Nice little individual. Wow, looks just like Gao.
Bernd Pauli
 7/27/2021 5:07:44 AM
HEINLEIN D. (1999) The meteorite shower of Nadiabondi, Burkina Faso (M! Nov. 1999, Vol. 5, No. 4, p. 20).
 

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