| Autor: |
Rotolo Silvio G., Carapezza Maria Luisa, Correale Alessandra, Martin Franco Foresta, Hahn Gregor, Hodgetts Alastair G.E., La Monica Mariangela, Nazzari Manuela, Romano Pierangelo, Sagnotti Leonardo, Siravo Gaia, Speranza Fabio |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Open Archaeology, Vol 6, Iss 1, Pp 434-453 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2300-6560 |
| DOI: |
10.1515/opar-2020-0120 |
| Popis: |
This paper provides new petrochemical and paleomagnetic data from obsidian sub-sources on the island of Pantelleria, exploited since the Neolithic. Data has been obtained from 14 obsidian samples from 4 locations: Fossa della Pernice (2 sites), Salto la Vecchia and Balata dei Turchi. Here, we aim to better characterize these obsidians using a cross-disciplinary and multi-analytical approach, to further understand their archaeological significance. Major element analyses (EMP) have enabled two compositional super-groups to be distinguished: (i) Fossa della Pernice, less peralkaline and (ii) Balata dei Turchi–Salto la Vecchia, distinctly more peralkaline and having almost identical chemical patterns. Trace element analyses (LA-ICP-MS) corroborate major element groupings, with the Balata dei Turchi–Salto la Vecchia super-group being further characterized by a pronounced negative europium anomaly. Glass H2O contents (FT-IR) reveal an overlap among all the sub-sources (H2O = 0.1–0.3 wt. %). Magnetic methods have refined the petrochemical groupings, permitting further distinction between Balata dei Turchi–Salto La Vecchia and the Fossa della Pernice super-groups. The occurrence of sub-microscopic (< 1 μm) ferromagnetic minerals results in different magnetic susceptibility and Natural Remanent Magnetization values and allows the best distinction among the products from the chosen sites. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
