Inclusions in Minerals in Howardite Clasts: Indicators of Processed and Unprocessed Clasts in Unmodified Regolith Breccias (original) (raw)
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Lithos, 2021
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This paper provides a brief overview of current knowledge concerning lithic raw material resources in the Kermanshah plain and their role in Mousterian land use pattern within the study area. For this purpose, the lithic assemblage from Mousterian site of Do-Ashkaft has been analyzed. The author briefly discusses differences in core technology and tool production based on local and non-local types of raw material, and argues that the better quality non-local cherts were used for production of blanks used in formal tools, while local radiolarit was reduced by a more expedient core technology and very rarely retouched into formal tools.
Anthropologie, 2002
L'analyse de l'industrie non étudiée de la grotte Vindija (Croatie), provenant des niveaux du Paléolithique moyen, nécessite une révision des travaux précédents, notamment ceux sur les matières premières ). Au terme de cette révision, plusieurs points sont soulignés. Le premier est l'importance du quartz au Paléolithique moyen, sous estimé au profit du silex. Il est aussi intéressant de noter que les deux ruptures majeures dans l'utilisation des matières premières se situent au début du Paléolithique supérieur et à l'Épigravettien. Pour le silex, en particulier un changement clair intervient au Paléolithique supérieur. Des nodules crayeux de silex se substituent en grande partie aux galets de rivière traditionnellement utilisés au Paléolithique moyen. Ces nouvelles sources d'approvisionnement ne sont malheureusement pas localisées pour l'instant. © 2002 É ditions scientifiques et médicales Elsevier SAS. Tous droits réservés.
Provenance d’artefacts en rhyolite corse : évaluation des méthodes d’analyse géochimique
Comptes Rendus Palevol, 2018
Through the analysis of flint and obsidian artefacts, numerous studies have shown the links that existed between Corsica and Sardinia during Neolithic and Chalcolithic. However, we have almost no information about the movements and exchanges that took place in Corsica itself. Rhyolite, a siliceous volcanic rock, has been exploited in Corsica and disseminated throughout the territory from the early Neolithic. Up to now, only one major study has been conducted in the North of the island, in order to identify, by petrographic analysis, the raw material deposits of these rhyolite artefacts. Petrography is a destructive method; it is thus difficult to apply it to large series of archaeological objects. Our aim was therefore to investigate less invasive analytical methods, based on the geochemistry of rocks, in order to conduct future studies based on these rhyolite remains. We analysed 34 geological samples from four different sources, as well as 31 archaeological samples unearthed at three different archaeological areas. We show that EDXRF is an effective method to discriminate sources but also to characterise artefacts using nondestructive protocol. LA-ICP-MS encounters issues due to heterogeneity of the studied rocks. However, we show that by adjusting our testing protocol this method can complement the EDXRF analysis, which is ineffective on objects that are too thin.
1991
Steatite is a soft, variously coloured and sometimes translucid mineral. It is found in mountainous areas, within metamorphic outcrops, and occasionally as river pebbles. Talcum powder is made by scratching and grinding it. During the Upper Palaeolithic, it was used to make pendants and figurines. Talcum powder was possibly used for tanning hides, but this cannot be definitely proved. Steatite items were found in the Balzi Rossi sites, at the frontier between Italy and France, but most of them were excavated long ago. We discuss the place of origin and stratigraphic position of each of them, and draw comparisons with similar artifacts found in other Italian and French sites. Working techniques, and specially perforating techniques, became more and more complex through time. During the Gravettian-Early Epigravettian, small steatite pebbles were looked for to carve human figurines. This raw material was possibly more easily found at the end of the Upper Palaeolithic, after mountain deglacierisation, when people were able to explore new countries freely.
Archéométrie 2011. XVIIIe Colloque d’Archéométrie du GMPCA, 11-15 Avril 2011, Liège, Belgique. Programme et Résumés, Liège, Université de Liège / Facultés Notre Dame de la Paix, Namur / Groupe des Méthodes Pluridisciplinaires Contribuant à l'Archéologie : 356.