A5021936575- Cultural Heritage Materials Analysis
- Building materials and conservation
- Conservation Techniques and Studies
- X-ray Spectroscopy and Fluorescence Analysis
- Laser Material Processing Techniques
- Archaeology and ancient environmental studies
- Geology and Paleoclimatology Research
- Nuclear Physics and Applications
- Groundwater and Isotope Geochemistry
- Laser-induced spectroscopy and plasma
- Advanced X-ray and CT Imaging
- Lichen and fungal ecology
- Metallurgy and Cultural Artifacts
- Geological formations and processes
- Archaeology and Historical Studies
- Groundwater flow and contamination studies
- CO2 Sequestration and Geologic Interactions
- Image Processing and 3D Reconstruction
- Advanced X-ray Imaging Techniques
- Concrete and Cement Materials Research
- Endodontics and Root Canal Treatments
- Plant nutrient uptake and metabolism
- X-ray Diffraction in Crystallography
- Smart Materials for Construction
- Mineralogy and Gemology Studies
University of Évora
2014-2024
Ca' Foscari University of Venice
2008
University of Bologna
1988-2006
University of Cambridge
1989-2002
ABSTRACT Concretions cemented mainly by siderite, Mg‐calcite and iron monosulphide are common in late Holocene marsh sandflat sediments on parts of the north Norfolk coast. Field experiments have shown that concretions actively forming reduced which sulphate‐reducing bacteria active. δ 13 C values ranging from −3 to −11·8% (mean −5·9%0) suggest carbonate is derived partly marine sources microbial degradation organic matter. 18 O ranged −6·4% + 0·8% −1·0%) suggesting precipitated porewaters...
During the Islamic period, ceramic workshops were commonly established in settlements throughout Gharb al-Andalus region (Western Iberia at time), to produce ceramics for local supply. Along middle valley of Tagus river (i.e., nowadays central Portugal), hundreds sherds, either glazed or common wares, recovered over different archaeological excavations. At site Serradinho, located Muge (Municipality Salvaterra de Magos, Santarem District, a fortuitous finding was unearthed during...
An experimental study was conducted to assess the nature and extent of biodeterioration limestone in Batalha Monastery Portugal. Stone fragments covered with microbial biofilms lichenous crusts were investigated using Optical Microscopy (OM), Low Vacuum Scanning Electron Energy Dispersive Spectroscopy (LV-SEM + EDS), X-ray micro-Diffractometry (μ-XRD). Microbial samples collected from stone surface, cultured, analyzed NGS metagenomic DNA test classify bacterial communities associated...
Abstract Scanning electron microscopy in secondary (SEM) and back-scattered (BSEM) mode associated with energy-dispersive X-ray spectroscopy has been used to investigate decay features biological colonization of calcareous granitic building stones monuments rock outcrops the UK, Portugal Spain. In combination physical caused by lichen hyphae penetrating stone substrate, this study reveals how chemical attack organic acid exudates derived from metabolic activity lichens leading...
An integrated, multi‐analytical approach combining the high sensitivity of SR‐μXRF, light element capability PIXE/PIGE under a helium flux and spatial resolution BSEM + EDS was used to characterize chemical composition corrosion glass samples (first fourth centuries ad ) from an important, but scarcely investigated, Roman region south‐west Iberia (southern Portugal). The geochemical trends associations major, minor trace elements were investigated shed on production techniques, provenance...
Hypogenic caves represent unique environments for the development of specific microbial communities that need to be studied. Caves with rock art pose an additional challenge due fragility paintings and engravings colonization which may induce chemical, mechanical aesthetic alterations. Therefore, it is essential understand thrive in these monitor activity effects on host order better preserve safeguard ancestral artforms. This study aims at investigating Palaeolithic representations found...