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<p>A group of metal objects excavated at Qasr-e Abu Nasr in south-central Iran in the 1930s, now in the collection of the Metropolitan Museum of Art, has been analyzed to examine metalworking techniques and metallurgical processes. Thirty-three objects were studied and analyzed by micro-X-ray fluorescence, scanning electron microscopy-energy dispersive X-ray spectroscopy, and metallography techniques. The results of these analyses show a wide range of copper alloy compositions including impure copper, tin bronze, brass, leaded tin bronze, leaded brass and leaded ternary Cu-Sn-Zn (gunmetal) alloys. Also, two silver-copper and one pewter object were identified among the analyzed objects. The results of this interdisciplinary study provide new insights onto the archaeology of Qasr-e Abu Nasr, as well as present new information about the history and evolution of copper-base metallurgy on the Iranian Plateau during the Sasanian and early Islamic periods.</p>

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Sasanian and early Islamic copper-base metalworking at Qasr-e Abu Nasr, south-central Iran

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年1月10日

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  • Omid Oudbashi,
  • Henry P. Colburn,
  • Federico Carò

摘要

A group of metal objects excavated at Qasr-e Abu Nasr in south-central Iran in the 1930s, now in the collection of the Metropolitan Museum of Art, has been analyzed to examine metalworking techniques and metallurgical processes. Thirty-three objects were studied and analyzed by micro-X-ray fluorescence, scanning electron microscopy-energy dispersive X-ray spectroscopy, and metallography techniques. The results of these analyses show a wide range of copper alloy compositions including impure copper, tin bronze, brass, leaded tin bronze, leaded brass and leaded ternary Cu-Sn-Zn (gunmetal) alloys. Also, two silver-copper and one pewter object were identified among the analyzed objects. The results of this interdisciplinary study provide new insights onto the archaeology of Qasr-e Abu Nasr, as well as present new information about the history and evolution of copper-base metallurgy on the Iranian Plateau during the Sasanian and early Islamic periods.