This work investigates the decayed decoration of the ‘Vergine del Carmelo’ chapel, with a particular interest in the residual gildings. Samples of the finishing layers were examined by VIS-UV optical microscopy and scanning electron microscopy coupled with EDX spectrometry, in order to evaluate the unusual degradation phenomena. Mineralogical composition of the stucco substrate was characterized by X-ray diffraction (XRD) and FTIR spectroscopy. The results showed the unexpected presence of a thick layer of brass flakes, applied without any binder, used as a substitute for the damaged original gold leaf, and highlighting a very uncommon selective corrosion process of the brass
The present paper describes the design strategies of an ecosystem of tools and services, currently under construction, developed in cooperation among archaeologists and computer science experts of the Università degli Studi di Milano and architects and topographers of the Politecnico di Milano. This ecosystem is based on the archaeological experience carried out in Tarquinia since 1982 in the frame of the "Tarquinia Project". The project takes into account the analysis and processing of multifaceted archaeological evidences in a context-oriented environment, in which interdisciplinary contributions of several scientist are combined and integrated, in order to grasp the original system of interaction of different branches of the ancient reality.Such a cooperation needs a system of "query/communication" able to integrate archaeological data, artefacts and architectural structures (subsoil and over-ground), cartographic and photographic documentation and scientific contents, achieved in the past and implemented during the field research. The proposed ecosystem aims to provide a set of services for federating different existing data-sources (GIS, including 3D tools), through the definition of a semantic network of relationships among landscapes, stratigraphic layers, structures and artefacts of an excavation site (ArchMatrix). This ecosystem is based on an innovative global design method, focused on the management of raw-data captured and analyzed by different experts in a collaborative way. The aim is to develop a solution able to support analyses and studies grounded in the real needs of the archaeological investigation, by enabling archaeologists in producing archaeological and historical interpretations starting from the real core of the documentation they deal with. In such a framework, the present paper focuses on a novel approach to identify the object of the archaeological research, starting from the needs of field archaeology, and on the design of a system meant to solve problems according to an integrated approach in a unique context of analysis.
The proposal for safeguarding and urban development comes as a multidisciplinary project; it fits well to an innovative vision on the enhancement of a complex cultural heritage system. The "case" is the Koya city centre, located in the Kurdistan region. Thanks an agreement with the Koya University, the key topics of the possible work together are: Preservation, Management and Conservation strategies and techniques for a historic centre. The knowledge starts with "survey" of the present situation, and develops a range of intervention hypotheses and guidelines apt to provide advice for the local stakeholders. The theme has given us the opportunity to think of a possible dialogue between specialists (architect, engineer, planner), starting with the multiple "actors" in situ. Promoting the old and contemporary identity values of the area is a main feature of the work of safeguarding, aiming at encouraging an urban development based on the conservation of the past, the quality of life and an eco-compatible tourism approach.
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