25 documents found, page 1 of 3
Exploring and Mapping Marine Placers in Vigo Estuary Shoreline Using GIS Cartog...
Ng Cutipa, L; Lobato, A; González, J; Georgalas, P; Zananiri, I; Cardoso Fernandes, J; Teodoro, CMarine placer deposits are accumulations of heavy minerals in coastal areas, both on beaches and in shallow water, usually consisting of ilmenite, rutile and zircon, and less commonly rare earth minerals (REEs) such as monazite and xenotime. This study investigates marine placer deposits in the Vigo Estuary (NW Spain), focusing on integrating diverse on and offshore cartographic data (geology, mineral resources...
S34I Project: Secure and Sustainable Supply of Raw Materials for EU Industry
Ana Teodoro; Cardoso Fernandes, J; Gheorghe, M; Falabella, F; Calò, F; Pepe, A; Hanelli, D; Knobloch, A; La Rosa, R; Farahnakian, F; Georgalas, GPThe Secure and Sustainable Supply of Raw Materials for EU Industry - S34I project is researching and innovating new data-driven methods to analyze Earth Observation (EO) data, supporting systematic mineral exploration and continuous monitoring of extraction, closure, and post-closure activities to increase European autonomy regarding raw materials (RM) resources, and to use EO not only for the management of tec...
Innovative Hyperspectral Data Fusion for Enhanced Mineral Prospectivity Mapping
La Rosa, R; Steffen, M; Storch, I; Knobloch, A; Cardoso Fernandes, J; Carvalho, M; Barrios, MS; Sánchez Migallón, JM; Nygren, P; Williams, VTo meet the European Unions growing demand for critical raw materials in the transition to green energy, this study presents a novel, cost-effective, and non-invasive methodology for mineral prospectivity mapping. By integrating hyperspectral data from satellite, airborne, and ground-based sources with deep learning techniques, we enhance mineral exploration efficiency. We employ Bayesian Neural Networks (BNNs)...
Evaluation of EnMAP Hyperspectral Data for the Identification of Placers in the...
Araújo, L; Cardoso Fernandes, J; Azzalini, A; Carvalho, M; Lima, A; González, J; Teodoro, ACCritical Raw Materials are crucial to achieve the European Unions (EU) goals of a climate-neutral economy by 2050. The high supply risk led the EU to prioritise domestic mineral exploration. This study, part of the S34I - SECURE AND SUSTAINABLE SUPPLY OF RAW MATERIALS project, utilised remote-sensing-based methods to identify and map heavy-mineral (HM) placer deposits in the Ria de Vigo, located in Galicia, Spa...
GREENPEG exploration for pegmatite minerals to feed the energy transition: firs...
Müller, A; Reimer, W; Wall, F; Williamson, B; Menuge, J; Brönner, M; Haase, C; Brauch, K; Pohl, C; Lima, A; Teodoro, A; Cardoso Fernandes, JThe GREENPEG project, which is funded by the European Commission Horizon 2020 Climate action, environment, resource efficiency and raw materials programme, aims to develop multimethod exploration toolsets for the identification of European, buried, small-scale (0.015 million m3 ) pegmatite ore deposits of the NbYF (NYF) and LiCsTa (LCT) chemical types. The project is being coordinated by the Natural History Mus...
Automated Lineament Extraction applied to high-resolution imagery Worldview-3 a...
Santos, D; Mendes, A; Azzalini, A; Cardoso Fernandes, J; Lima, A; Ana TeodoroLineament extraction is a commonly used technique in mineral exploration to identify geological structures such as fault scarps, joints, and folds. However, the accuracy of this technique can be limited by factors such as the low spatial resolution of the data. This study aims to address these limitations by exploring the potential of high spatial resolution data for extracting linear structures in Tysfjord, no...
The INOVMineral Project's Contribution to Mineral Exploration-A WebGIS Integrat...
Cardoso Fernandes, J; Santos, D; de Almeida, CR; Vasques, JT; Mendes, A; Ribeiro, R; Azzalini, A; Lia Duarte; Moura, R; Alexandre Lima; Ana TeodoroDue to the current energetic transition, new geological exploration technologies are needed to discover mineral deposits containing critical materials such as lithium (Li). The vast majority of European Li deposits are related to Li-Cs-Ta (LCT) pegmatites. A review of the literature indicates that conventional exploration campaigns are dominated by geochemical surveys and related exploration tools. However, oth...
Sentinel data for critical raw materials (CRM) exploration: First results of th...
Cardoso Fernandes, J; Carvalho, M; Azzalini, A; Rodrigues, G; Monteiro, G; Alexandre Lima; Ana TeodoroTo achieve sustainable development goals, it is crucial to ensure the best practices through the whole mining cycle of critical raw materials (CRM) used in high-Tech, low-carbon goods (batteries, wind turbines, electronics). This is the aim of the SECURE AND SUSTAINABLE SUPPLY OF RAW MATERIALS FOR EU INDUSTRY (S34I) Horizon Europe (HE) project that began on January 1st, 2023. S34I is investigating new data-driv...
Mapping NYF pegmatite outcrops through high-resolution Worldview-3 imagery
Santos, D; Mendes, A; Azzalini, A; Cardoso Fernandes, J; Lima, A; Ana TeodoroSeveral studies on remote sensing and mineral exploration have been developed or improved in the last decade. However, the low spatial resolution of satellites is a recurring problem in many cases where the mineral or rock is much smaller than the pixel size of the satellite images. This phenomenon, called sub-pixel occurrence, generates an extremely mixed pixel that difficult the performance of conventional cl...
Spectral Analysis to Improve Inputs to Random Forest and Other Boosted Ensemble...
Santos, D; Cardoso Fernandes, J; Lima, A; Muller, A; Bronner, M; Teodoro, ACAs an important source of lithium and rare earth elements (REE) and other critical elements, pegmatites are of great strategic economic interest for present and future technological development. Identifying new pegmatite deposits is a strategy adopted by the European Union (EU) to decrease its import dependence on non-European countries for these raw materials. It is in this context that the GREENPEG project wa...