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Title: Secondary REE-minerals in the karst bauxites of the Bahoruco Peninsula (Dominican Republic)
Author: Villanova de Benavent, Cristina
Proenza Fernández, Joaquín Antonio
Torró i Abat, Lisard
Aiglsperger, Thomas Hans
García-Casco, A.
Altamirano Morán, D.R.
Ramírez, A.
Rodríguez, J.
Keywords: Bauxita
Jaciments minerals
República Dominicana
Mineral deposits
Dominican Republic
Issue Date: Jul-2017
Publisher: Sociedad Española de Mineralogía
Abstract: Rare earth elements (REE) are essential for numerous technological applications. Currently about 90% of the worldwide REE demand is supplied by China (Hatch, 2012), and therefore REE are defined as critical metals (Dutta et al., 2016). Bauxites, the main source for Al in the world, gained interest since they are capable of concentrating significant amounts of REE (Liu et al., 2016), and have been recently considered unconventional deposits for REE (Goodenough et al., 2017). Two types of bauxitic deposits are defined: a) lateritic bauxites (formed after intense weathering of an Al-bearing protolith), and b) karst bauxites (of controversial origin, hosted in carbonaceous rocks). One hypothesis of karst bauxite formation suggests dissolution of the carbonates, whereas the other implies an external contribution of Al-bearing minerals during or after carbonate deposition (Bárdossy, 1982).
Note: Reproducció del document publicat a:
It is part of: MACLA. Revista de la Sociedad Española de Mineralogía, 2017, vol. 22, p. 125-126
ISSN: 1885-7264
Appears in Collections:Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)

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