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Mineralogical study of the Gonçalo Li-pegmatite deposit, Portugal
Authors
J Andersen
R Armstrong
+9 more
Alla Dolgopolova
A Guedes
F Noronha
V Ramos
W Reimer
G Rollinson
Reimar Seltmann
B Simons
Christopher Stanley
Publication date
28 July 2018
Publisher
Norsk Geologisk Forening (NGF)
Abstract
Beside the Scandinavian countries and Serbia, Portugal is among the European countries with the most significant lithium resources. The Li-rich occurrences in Portugal are mainly associated with aplite-pegmatite dykes and sills intruded in granitic and metasedimentary rocks of the Central Iberian and Galicia – Trás-os-Montes geotectonic zones (Carvalho & Farinha, 2004). The Gonçalo Li-pegmatites in the Guarda district (currently only used as decorative stone) have significant economic importance. Among other deposits, Gonçalo is a reference site in the focus of the EU FAME project (www.fame-project.eu) that aims to unlock the development potential of the most promising European Sn-W-Li ore types. Results of optical microscopy, QEMSCAN©, Raman and electron-probe microanalysis of the Gonçalo Li-pegmatite deposit have been employed to determine the mineralogical variability of the pegmatites with the aim to determine the deportment of lithium and potential rare-metal by-products and to guide enhanced mineral processing technologies.Available to download freely and reproduced here with permission of the publisher. The attached file is the published pdf
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Last time updated on 12/06/2020