Calcareous nannofossil assemblage in paintings chalk ground for provenance analysis: three original paintings compared to european source materials
نویسندگان
چکیده
Abstract Chalk has been used since Antiquity for various purposes, and Gothic preparatory layers of painted cultural heritage objects. Several materials are called chalk in Cultural Heritage, but this work especially focuses on composed calcareous nannofossils (up to 98%). These fossil remains photoautotrophic algae generally smaller than 30 μm. They mainly visible as platelets shapes under a cross-polarised or scanning electron microscope. The provenance can be determined using due their well-known paleobiogeographic localities. already proxies the 90s rarely paintings. In work, 6 historical mining areas were chosen: Germany (Ruegen), France (Champagne, Meudon), Belgium (Mons), England (Norfolk) Italy (Bologna). Natural processed reference compared 3 original difference between chalks nannofossil assemblages was shown multivariate statistical analysis based species relative abundance. Marker defined each locality. One painting material could not originated preservation its assemblage, origins rock from two other paintings geographically located France.
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ژورنال
عنوان ژورنال: Heritage Science
سال: 2023
ISSN: ['2050-7445']
DOI: https://doi.org/10.1186/s40494-023-00974-9