Interdisciplinary methodology for the characterisation of archaeological metal grave goods from the Museum of Patagonia by PIXE, DRX, and SEM/EDS

Author:

Schweickardt Josefina M.12ORCID,Pérez Pablo D.23ORCID,Morán Mauricio12,Villelli Marcia Bianchi24,Cantargi Florencia1

Affiliation:

1. Laboratorio Argentino de Haces de Neutrones (LAHN) Comisión Nacional de Energía Atómica (CNEA) Bariloche Argentina

2. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Bariloche Argentina

3. Centro Atómico Bariloche (CAB) Comisión Nacional de Energía Atómica (CNEA) Bariloche Argentina

4. Instituto de Investigaciones en Diversidad Cultural y Procesos de Cambio (IIDyPCa) Universidad Nacional de Río Negro (UNRN) Bariloche Argentina

Abstract

AbstractWe present a study of a selection of metal ornaments belonging to archaeological funerary goods from Patagonic Indigenous groups. They are part of the ‘Andrés Giai’ Collection, under the guard of the Museum of Patagonia (Nahuel Huapi National Park [PNNH]; National Parks Administration [APN]), Argentina. The absence of contextual information and its current conservation status motivated the design of an interdisciplinary methodology to develop an Integral Conservation Plan that considered the selection of analytical techniques. Here, we implemented complementary nondestructive characterisation techniques such as particle induced X‐ray emission (PIXE), X‐ray diffraction (XRD) and scanning electron microscopy coupled with energy dispersive X‐ray spectroscopy (SEM/EDS). We developed a methodology enabling us to characterise each piece with respect to its metallic composition and degradation products, and in certain cases, their manufacturing process. These findings have contributed with essential information for the tailored conservation treatment proposal. Moreover, they provided key information in regard to the reconstruction of contextual data for each piece. In addition, the methodology proposed for the Integral Conservation Plan takes into account an optimisation of the techniques to be used in order to minimise unnecessary handling of goods whilst ensuring an appropriate use of technological and economic resources whilst minimising time on potentially unconclusive measurements and results.

Funder

Consejo Nacional de Investigaciones Científicas y Técnicas

Comisión Nacional de Energía Atómica, Gobierno de Argentina

Publisher

Wiley

Reference39 articles.

1. The role of surface analysis in the strategies for conservation of metallic artefacts from the Mediterranean Basin

2. Degradation mechanisms occurring in precious metallic artefacts

3. Barrio J. (2002).Aspectos de la investigación analítica sobre el deterioro y los criterios de intervención en los vidrios romanos de la villa de El Saucedo (Talavera de la Reina Toledo).Conservación del Patrimonio evolución y nuevas perspectivas. I Congress GEIIC Valencia España 2002 310‐316. IIC Sapnish Group.

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