L�dia Quental
Multispectral and hyperspectral remote sensing as a source of knowledge in the Portuguese sector of the Iberian Pyrite Belt
Quental, L�dia; Gon�alves, P.; de Oliveira, D.; Batista, M. J.; Matos, J. X.; Sousa, A. J.; Marsh, S.; Carreiras, J.; Dias, R.
Authors
P. Gon�alves
D. de Oliveira
M. J. Batista
J. X. Matos
A. J. Sousa
STUART MARSH STUART.MARSH@NOTTINGHAM.AC.UK
Professor of Geospatial Engineering
J. Carreiras
R. Dias
Abstract
ABSTRACT: Remote sensing is an invaluable tool to increase geological and mining knowledge, due to its screening view and variable discrimination and identification capabilities of the target materials. In this study an overview of remote sensing research developed and ongoing within the Portuguese sector of the Iberian Pyrite Belt (PSIPB) since 2000 is given. Multispectral and hyperspectral datasets were processed using hybrid methods, related both to general and detailed characterization, to: 1) support geological, mineral and hydrothermal mapping, 2) generate products derived from multivariate analysis and band ratios, 3) enhance correlation with radiometric data, 4) provide elements for environmental assessment concerning mining activity, 5) map Acid Mine Drainage (AMD) based on spectral field signatures, 6) quantify AMD based on high correlation mineralogical mapping, and 7) monitor AMD. The results highlight the importance of the quantitative digital support given by remote sensing tools within the Portuguese Sector of the Iberian Pyrite Belt (PSIPB), ruled by georesource exploitation in different stages of the Mine Lyfe Cycle.
RESUMO: A deteção remota é uma ferramenta valiosa para aumentar o conhecimento geológico e mineiro, devido à visão sinótica e à capacidade variável de discriminação e identificação dos materiais-alvo. Neste trabalho dá-se uma visão geral da investigação através dos trabalhos de deteção remota desenvolvidos e em curso no Setor Português da Faixa Piritosa Ibérica (SPFPI) desde 2000. Os dados multiespectrais e hiperespectrais foram processados usando métodos híbridos quer para a sua caracterização geral quer detalhada para: 1) apoiar a cartografia geológica, de mineralizações e sistemas hidrotermais, 2) gerar produtos de análise multivariada e rácios de bandas, 3) melhorar a correlação com dados radiométricos 4) fornecer elementos para avaliação ambiental em áreas mineiras, 5) cartografar a drenagem ácida de mina (DAM) com assinaturas espectrais de campo, 6) quantificar a DAM através de cartografia mineralógica de alta correlação, e 7) monitorizar a DAM. Destaca-se a importância do suporte digital quantitativo dado por ferramentas de deteção remota no SPFPI, regido pela exploração de georrecursos em diferentes fases do Ciclo de Vida das Minas.
Citation
Quental, L., Gonçalves, P., de Oliveira, D., Batista, M. J., Matos, J. X., Sousa, A. J., …Dias, R. (2020). Multispectral and hyperspectral remote sensing as a source of knowledge in the Portuguese sector of the Iberian Pyrite Belt. Comunicações Geológicas, 107(Especial III), 21-39
Journal Article Type | Article |
---|---|
Acceptance Date | Oct 23, 2020 |
Online Publication Date | Oct 27, 2020 |
Publication Date | Oct 27, 2020 |
Deposit Date | Nov 3, 2020 |
Publicly Available Date | Nov 3, 2020 |
Journal | Comunicações Geológicas |
Print ISSN | 0873-948X |
Electronic ISSN | 1647-581X |
Publisher | Laboratório Nacional de Energia e Geologia (LNEG) |
Peer Reviewed | Peer Reviewed |
Volume | 107 |
Issue | Especial III |
Pages | 21-39 |
Keywords | Multispectral, Hyperspectral, Portuguese sector of the Iberian Pyrite Belt (PSIPB), Multi-source data, Spectral information |
Public URL | https://nottingham-repository.worktribe.com/output/5007428 |
Publisher URL | http://hdl.handle.net/10400.9/3337 |
Related Public URLs | https://www.lneg.pt/wp-content/uploads/2020/07/Volume_107_III.pdf |
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Multispectral and hyperspectral remote sensing as a source of knowledge in the Portuguese sector of the Iberian Pyrite Belt
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