Multiple origins of Bondi Cave and Ortvale Klde (NW Georgia) obsidians and human mobility in Transcaucasia during the Middle and Upper Palaeolithic

978 11 4180 1 11692 document 4180 Le Bourdonnec et al JAS Obsidienne Georgie in press.pdf application/pdf d8e972f6c5578e0103083c8a7438e0ed MD5 2376023 2014-02-13 12:22:45 http://eprints.iliauni.edu.ge/978/1/Le%20Bourdonnec%20et%20al%20JAS%20Obsidienne%20Georgie%20in%20press.pdf 978 1 1 application/pdf text en public

Le Bourdonnec et al JAS Obsidienne Georgie in press.pdf

4182 2 11697 document 4182 lightbox.jpg image/png 112fc0022e3ae87e1bf1ba7d6be5668e MD5 61360 2014-02-13 13:32:52 http://eprints.iliauni.edu.ge/978/3/lightbox.jpg 978 3 3 image/png other Thumbnails conversion from text to thumbnail_lightbox ge public

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http://eprints.org/relation/isVersionOf http://eprints.iliauni.edu.ge/id/document/4180 http://eprints.org/relation/isVolatileVersionOf http://eprints.iliauni.edu.ge/id/document/4180 http://eprints.org/relation/issmallThumbnailVersionOf http://eprints.iliauni.edu.ge/id/document/4180 archive 92 disk0/00/00/09/78 2014-02-13 16:38:58 2016-06-30 12:29:00 2014-02-13 16:38:58 article show nikoloz_tushabramishvili@iliauni.edu.ge Le Bourdonnec François-Xavier francois-xavier.le-bourdonnec@u-bordeaux3.fr Nomade Sébastien sebastien.nomade@lsce.ipsl.fr Poupeau Gérard Gerard.Poupeau@u- bordeaux3.fr. Guillou Hervé Herve.Guillou@lsce.ipsl.fr Tushabramishvili Nikoloz nikoloz_tushabramishvili@iliauni.edu.ge Moncel Marie-Hélène moncel@mnhn.fr Pleurdeau David pleurdeau@mnhn.fr Agapishvili Tamar atatella@yahoo.com Voinchet Pierre pvoinch@mnhn.fr Mgeladze Ana amgeladze@freeuni.edu.ge Lordkipanidze David dlordkipanidze@museum.ge Multiple origins of Bondi Cave and Ortvale Klde (NW Georgia) obsidians and human mobility in Transcaucasia during the Middle and Upper Palaeolithic pub DS fac_eng public Using PIXE four types of elemental compositions were found among obsidian artefacts from the Bondi Cave and Ortvale Klde, Middle to Upper Palaeolithic sites in NW Georgia. One of those types corresponds to obsidians from the Chikiani source, whose compositions were determined with a very good agreement by PIXE and ICP-AES/MS. The composition of Chikiani obsidians is remarkably constant despite KeAr and 39Ar/40 Ar extrusion ages from ca 2.4 and 2.8 Ma. The compositions of two other groups of obsidian artefacts are similar to source materials from eastern Anatolia and Armenia, in particular Ikisdere, Sarikamis, Gutansar, and Hatis. Obsidian is only a minority component in the lithic assemblages at the Bondi Cave and Ortvale Klde. Both Neanderthal and Modern Human populations used obsidian in particular from Chikiani. Considering that the shortest walking distance to this nearest source is at minimum of about 180 km, and to other potential sources of more than 350 km it is suggested that this material reached these two sites mostly, if not exclusively, by a series of‘down the line’ exchanges 2012 Journal of Archaeological Science 29 5 Elsevier 1317 -1330 TRUE 0305-4403 http://www.sciencedirect.com/science/article/pii/S030544031100447X