A case study for scientific research prior to conservation of marine metal artefacts
Janneke van der Stok-Nienhuis (Universiteit van Amsterdam)
Elisabeth Kuiper (Universiteit van Amsterdam)
Tonny Beentjes (Universiteit van Amsterdam)
Ineke Joosten (Cultural Heritage Agency of the Netherlands)
L van Eijk (TU Delft - RST/Neutron and Positron Methods in Materials)
Z. Zhou (TU Delft - RST/Neutron and Positron Methods in Materials)
Maarten R. van Bommel (Universiteit van Amsterdam)
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Abstract
A rare find of a high-status 17th century oval box, retrieved from a shipwreck, provided a unique opportunity to research the construction and finishing layers of an object that is untouched for 350 years. This case study was used to demonstrate the extent of data that can be gained from analytical techniques prior to conservation. The amalgam-gilt brass object was studied by optical and electron microscopy, X-radiography, micro-computed X-ray tomography, neutron tomography, X-ray fluorescence, X-ray diffraction, Rutherford backscattering spectrometry, proton-induced X-ray emission and gas chromatography. The results have led to a characterisation of the manufacturing methods used on the box and to a better understanding of the practicality of modern analytical methods and techniques in (maritime) archaeological research.
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