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Title: GEOPHYSICAL EXPLORATION IN ARGEMELA DISTRICT, FUNDAO, PORTUGAL – VLF RESULTS
GEOPHYSICAL EXPLORATION IN ARGEMELA DISTRICT, FUNDAO, PORTUGAL – VLF RESULTS

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Ricardo Ribeiro; Rui Moura; Ana Carvalho; Alexandre Lima; Charles Gumiaux
10.5593/sgem2024/1.1/s05.62
10.5593/sgem2024/1.1
1314-2704
978-619-7603-67-5
English
24
1.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
5.Applied and Environmental Geophysics
Raw materials are essential for Europe’s industrial base, as they are used to produce vital goods and technologies. The European Comission’s assessment identifies lithium and tin as critical and strategic raw materials due to rising demand. A PhD thesis aims to create a 3D geological model of the Argemela District in Central Portugal to provide vital information about the genesis of the hydrothermal tin and lithium mineralizations founded in the region. The study places emphasis on the very-low-frequency (VLF) electromagnetic method as a tool to provide information about the mineralization, lithologic contacts, and structural features that can be related to the mineralizations. Argemela district has two main areas, the Argemela Tin and Lithium Mine and the Argemela Hill Top. VLF data was collected and analyzed, showing that low resistivity may be associated with mineralization in the Argemela Mine, while high resistivity may be linked to the Argemela microgranite in the Argemela Hill Top. This geophysical method is effective in non-invasively mapping subsurface features, assisting in the development of a comprehensive 3D geological model and enhancing resource evaluation.
[1] European Commission, Directorate-General for Internal Market, Industry, Entrepreneurship and SMEs, Grohol, M., Veeh, C. (2023). Study on the critical raw materials for the EU 2023: final report, Publications Office of the European Union. https://data.europa.eu/doi/10.2873/725585
[2] Inverno, C., & Ribeiro, M. L. (1980). Fracturacao e cortejo filoneano nas Minas da Argemela (Fundao). Comun. Serv. Geolo. Portugal, 66, 185-193
[3] Charoy, B., & Noronha, F. (1996). Multistage Growth of a Rare-Element, Volatile-Rich Microgranite at Argemela (Portugal). Journal of Petrology, 37(1), 73-94. https://doi.org/10.1093/petrology/37.1.73
[4] Michaud, J. (2019). Rare Metal Granites - Origin, Emplacement and Mechanisms of the Magmatic-Hydrothermal Transition. University of Orlean. Orleans, France, p. 330.
[5] Ribeiro, R., Capela, D., Ferreira, M., Martins, R., Jorge, P., Guimaraes, D., & Lima, A. (2021). X-ray Fluorescence and Laser-Induced Breakdown Spectroscopy Analysis of Li-Rich Minerals in Veins from Argemela Tin Mine, Central Portugal. Minerals, 11(11), 1169. https://www.mdpi.com/2075-163X/11/11/1169
[6] Milsom, J. (2003). Field geophysics (3rd ed.). Wiley.
This work is supported by Portuguese National Funds through the FCT – Fundacao para a Ciencia e a Tecnologia, I.P. (Portugal), projects UIDB/04683/2020 (https://doi.org/10.54499/UIDB/04683/2020) and UIDP/04683/2020 (https://doi.org/10.54499/UIDP/04683/2020). Ricardo Ribeiro and Ana Carvalho were financially supported within the compass of their respective PhD thesis, SFRH/BD/140266/2018 and ref. 2022.10315.BD by national funds through FCT.
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https://doi.org/10.5593/sgem2024/1.1/s05.62
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
491-498
1 - 7 July, 2024
website
9890
Lithium, Tin, VLF, Argemela

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