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Análise de pinturas rupestres do Abrigo do Janelão (Minas Gerais) por microscopia raman
(Sociedade Brasileira de Química, 2011)
Rock art paintings from Abrigo do Janelão (Minas Gerais, Brazil) were non-destructively investigated by Raman Microscopy, aiming at the identification of materials used, their interaction and degradation. This technique ...
Obtención y caracterización estructural de compositos a partir de sub-productos de agave y coco
(2011-11-25)
Microstructured and moldable materials were designed, obtained and
characterized as composites from by-products of Cocus nucifera L. and Agave
angustifolia Haw. Powders and leached sustances with crosslinking agents ...
Micro-spectroscopic analysis of pigments and carbonization layers on prehispanic rock art at the Oyola's caves, Argentina, using a stratigraphic approach
(Elsevier Science, 2016-11)
Samples of prehispanic rock art from Oyola's archaeological site, near the city of Catamarca, Argentina have been analyzed using micro-Raman spectroscopy, SEM-EDS and BSD, and optical microscopy. These samples are ...
Characterization of biominerals in species of Canna (Cannaceae)
(Universidad de Costa Rica, 2010-12)
Plant biominerals are not always well characterized, although this information is important for plant physiology and can be useful for taxonomic purposes. In this work, fresh plant material of seven wild neotropical species ...
Stable calcium isotope speciation and calcium oxalate production within beech tree (Fagus sylvatica L.) organs
(Springer, 2018-01-04)
In this study, we linked Ca speciation with isotope composition in plants. To do this, we performed leachate experiments to access the soluble Ca, structurally bound Ca and insoluble Ca (i.e., water and weak acid resistant) ...
Detection of unexpected copper sulfate decay compounds on late gothic mural paintings: Assessing the threat of environmental impact
(Elsevier Science, 2021-10)
A multianalytical study was proposed for the study of late-gothic wall paintings preserved inside the Romanic church of Saint Ementerio and Saint Celedonio of Goikolexea (Basque Country, Spain), erected in the 15th century ...