Loading...
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 2.26 MB | Adobe PDF |
Advisor(s)
Abstract(s)
O Outeiro Redondo (Sesimbra) é um sítio arqueológico importante da Estremadura Portuguesa, predominantemente ocupado durante o Calcolítico Pleno/Final (segunda metade do III Milénio a.C.). Este estudo foca‑se na caracterização elementar e microestrutural de 12 artefactos em liga de cobre e de um fragmento de cadinho provenientes deste sítio, contribuindo assim para o conhecimento da metalurgia primitiva naquela região.
A metodologia aplicada consistiu em espectrometria de fluorescência de raios ‑X dispersiva de energias, microscopia óptica, microscopia electrónica de varrimento com microanálise de raios ‑X e microdureza Vickers.
O arsénio está presente em todos os fragmentos metálicos, quer como impureza (<2 wt%), quer como elemento de liga (>2 wt%), os quais apresentam constituintes microestruturais característicos de diversos processos termomecânicos. O cadinho mostra evidências de uso em operações metalúrgicas de redução de minérios.
The pre‑historic settlement of Outeiro Redondo located near Sesimbra is an important archaeological site of the Portuguese Estremadura region, predominantly occupied during the Full/Late Chalcolithic period (second half of the 3rd millennium B.C.). The present study focuses on the elemental and microstructural characterization of a group of 12 copper ‑based artefacts and a crucible fragment recovered from this settlement, contributing to the understanding of the Chalcolithic metallurgy in this geographic area. The applied methodology consisted of energy dispersive X ‑ray fluorescence spectrometry, optical microscopy, scanning electron microscopy with energy dispersive spectrometry and Vickers microhardness. Arsenic is present in all the metallic fragments, – whether as impurity (<2 wt%), or as an alloying element (>2 wt%) – which exhibit microstructural features characteristic of several thermomechanical processes. The crucible shows evidence of use in metallurgical operations, namely smelting.
The pre‑historic settlement of Outeiro Redondo located near Sesimbra is an important archaeological site of the Portuguese Estremadura region, predominantly occupied during the Full/Late Chalcolithic period (second half of the 3rd millennium B.C.). The present study focuses on the elemental and microstructural characterization of a group of 12 copper ‑based artefacts and a crucible fragment recovered from this settlement, contributing to the understanding of the Chalcolithic metallurgy in this geographic area. The applied methodology consisted of energy dispersive X ‑ray fluorescence spectrometry, optical microscopy, scanning electron microscopy with energy dispersive spectrometry and Vickers microhardness. Arsenic is present in all the metallic fragments, – whether as impurity (<2 wt%), or as an alloying element (>2 wt%) – which exhibit microstructural features characteristic of several thermomechanical processes. The crucible shows evidence of use in metallurgical operations, namely smelting.
Description
Keywords
História de Portugal Arqueologia Escavações arqueológicas
Citation
Cardoso, João Luís [et al.] - Estudo das evidências de produção metalúrgica no Outeiro Redondo (Sesimbra). In Associação dos Arqueólogos Portugueses - "Arqueologia em Portugal [Em linha] : 150 Anos". Lisboa: A. A. P., 2013. ISBN 978-972-9451-52-2. p. 463-469
Publisher
Associação dos Arqueólogos Portugueses