This paper focuses on a residual ancient aeolian climbing dune from Punta Penaboa (A Coruña, Northwest Spain) showing evidence of post-depositional weathering, particularly the presence of dark brown nodular masses. The partitioning of trace elements between nodular masses and host sand during post-depositional weathering of the dune is investigated in this work, with the main objective of studying the elementa...
Decorated glazed ceramic tiles are used as an ornamental art, constituting an important cultural heritage whose preservation is mandatory. Environmental conditions are responsible for the degradation of exposed ancient tile panels originating various pathologies, related to the development of microorganisms. This is the case of a valuable 18th century blue-and-white Portuguese tile panel called “Cura do Cego,...
Conserving the cultural heritage is a general concern and the use of non-destructive techniques to characterize ancient materials is important. Serious deterioration effects in environmentally exposed ancient glazed ceramic tiles arise from the development of micro-organisms (algae/fungi) within the pore system. Subsequent biodegradation processes are particularly harmful once the decorated glaze is damaged by ...
A investigação arqueológica do espaço hoje integrado no Núcleo Arqueológico da Rua dos Correeiros (NARC, CNS 1950) permitiu a recolha de um considerável número de ânforas de fabrico lusitano. O estudo arqueométrico de algumas destas ânforas, através da análise química por activação neutrónica das suas pastas, e a comparação com estudos composicionais similares existentes para três centros produtores da bacia do...
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