Flint in its diverse natural occurrences: geo-­‐tools for a better definition of the sourcing of secondary outcrops

Paul Fernandes (1) , Michel Piboule (2) , Médard Thiry (3) , Céline Bressy-Leandri (4) , François-Xavier Le Bourdonnec (5) , Pascal Tallet (1) , Jean-­‐paul Raynal (6)

1 Paléotime
2 UJF - Université Joseph Fourier - Grenoble 1
3 GEOSCIENCES - Centre de Géosciences
4 DRAC Corse - Direction Régionale des Affaires Culturelles - Corse
5 IRAMAT-CRP2A - IRAMAT-Centre de recherche en physique appliquée à l’archéologie
6 Max Planck Institute for Evolutionary Anthropology [Leipzig]

Precise identification of siliceous geo-resources used during prehistory still poses many problems, and archaeologists make ever-increasing demands for this data. The purpose is to provide a database containing an exact and descriptive identity for each different type of geological flint found within a region. The parameters we have chosen to characterize are the mineralogical composition (by optical microscopy, SEM, microprobe, cathodo-luminescence), microfacies characteristics (identified during microscopy and SEM image analysis), porosity measurements (by image analysis and porosimeter), and the presence and distribution of major and trace elements (using ICP, LA-ICP-MS, XRF, PIXE, Raman and SEM-EDS) at the surface or in the cracks in the matrix.

Domaines: Sciences de la Terre

Paul Fernandes, Michel Piboule, Médard Thiry, Céline Bressy-Leandri, François-Xavier Le Bourdonnec, et al.. Flint in its diverse natural occurrences: geo-­‐tools for a better definition of the sourcing of secondary outcrops. On the Rocks’, Xth International Symposium on Knappable Materials., Sep 2015, Barcelona, Spain. ⟨hal-01236679⟩