SPECTROMETRY ANALYSIS TECHNIQUES FOR LCT PEGMATITE HALO IDENTIFICATION: THE ROLE OF EUROPEAN PROJECTS

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2022

Autores

Cardoso Fernandes, J (Autor) FCUP; Rodrigues, C (Autor) Outra; Alexandre Lima (Autor) FCUP; Ana Teodoro (Autor) FCUP; Ribeiro, MD (Autor) Outra; Roda Robles, E (Autor) Outra; Errandonea Martin, J (Autor) Outra; Garate Olave, I (Autor) Outra

Ata de Conferência Internacional

Título: International Geoscience and Remote Sensing Symposium (IGARSS)

Páginas: 6436-6439

2022 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2022

17 July 2022 through 22 July 2022

Indexação

ISI Web of Knowledge - 2 Citações

Scopus - 4 Citações

Outras Informações

ID Authenticus: P-00X-841

DOI: 10.1109/igarss46834.2022.9883663

Abstract (EN): Lithium-Cesium-Tantalum ( LCT) pegmatites are enriched in several raw materials. However, their small size and the limited penetration depth of the sensors, limits remote sensing approaches. This study evaluates the usefulness of hyperspectral data to identify geochemical halos related to LCT pegmatites by exploiting the information acquired in European projects. It was possible to identify key minerals and related mineralogical changes that can be due to hydrothermal alteration. Partial Least Squares Regression (PLSR) was used to model the abundance of Li, Rb and Cs. The most reliable results were obtained for Cs, with results being influenced by lithological and weathering factors. New outcomes are expected, namely mineral chemistry studies that will complement the hyperspectral results.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4