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Eo-Bul: domestic bovines superimposed by elephants?

 
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AlessandroMN


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MessagePosté le: Jeu 24 Mai - 22:05 (2018)    Sujet du message: Eo-Bul: domestic bovines superimposed by elephants? Répondre en citant

Superimpositions are often a matter of interpretation. Of course, we do not need a debate each time we document a superimposition, especially if confirmed by hundreds of similar superimpositions. However, superimpositions that look like an oddity require particular attention. The Eo-Bul elephant superimposing cattle figures presented by Yves Gauthier in 2017 during the Allevard meeting underwent public debate. I am grateful to Yves for the chance to discuss such interesting topic. Now, on the Cahiers N19, I read of such superimposition as a fact. It is not

The alternative explanation is missing in the paper, dismissed without reason. Here following I summarise the alternative interpretation of the odd superimposition photographed in Eo-Bul with a sketch and a comment in three steps:
1.    In the pre-pastoral era, perhaps during the fifth millennium before the CE, somebody painted a big elephant, drawn by contour, with a solid white infill. The white infill saturated the porosity of the sandstone (sandstone usually is a very porous rock)
2.    Much later, perhaps during the 1st millennium before the CE, someone painted two cattle figures with a prominent udder (i.e. domestic animals). The red paint penetrated into the rock porosity only where no older painting was present. The red paint of the cattle figures adhered to the ancient painted elephant but did not fill the rock porosity. Thus the red constituted a thin film on white.
3.    Aeolian weathering ablated the red colour superimposed on the elephant, but it affected less dramatically the elephant since the white paint deeply imbued the rock. The result? An apparent inversion of the superimposition relations and a clear-cut boundary between paintings. Both paintings continue to fade.
 
Nevertheless, I remember that it was possible to see (in Allevard, not on the printed picture) some red traces attributable to the forebody of the lower cattle.
Moreover, I recall that the white elephants in the Gherbescina shelter are visible without DStretch while the red elephants, although better protected by the shelter ceiling, are invisible to the naked eye. The white paint used by the archaic artists behaved like cement, much more resistant than the red. Maybe the binders or the chemical reactions with the rock were different. However, the “Ennedi Ancient White” is very robust (e.g. Sivré III).
 
I think that the superimposition of the Eo-Bul Elephant on cattle is purely apparent. There are Uweinat Roundhead that superimposes animals (dogs) at Bu Hlega in the Uweinat but likely because of a similar effect on feldspars (porous by weathering).  Apparent “Inversion” of superimpositions is a possible phenomenon to be always considered.
 
Now, enjoy my sketch.




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MessagePosté le: Jeu 24 Mai - 22:05 (2018)    Sujet du message: Publicité

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