Results 11 to 20 of about 54,225 (159)
Multistage fluorite mineralization in the southern Black Forest, Germany: evidence from rare earth element (REE) geochemistry [PDF]
European Journal of Mineralogy, 2023 The Black Forest hosts a wide range of hydrothermal mineralization, including fluorite–barite vein deposits. In a detailed investigation of the Finstergrund and Tannenboden deposits in the Wieden mining district (southern Black Forest), the diversity ...
R. Hintzen +5 more
doaj +2 more sources
Геодинамика и тектонофизика, 2023 The article presents new data on the age and isotopic (Sr, Nd) characteristics of the Yuzhnoe and Ulan-Ude REE-fluorite occurrences, paragenetically related to alkaline carbonatite magmatism.
A. A. Redina +4 more
doaj +2 more sources
Bastnäsite nanoparticles in carbonatite-syenite-hosted REE deposit
, 2019 SEM images of the bastnäsite in the Maoniuping REE deposit, showing that bastnäsite is associated with fluorite (a). High magnification SEM images of the bastnäsite associated with fluorite (b). The SEM-EDS patterns of bastnäsite associated with fluorite,
rui liu (5295116)
core +18 more sources
Mineralium Deposita, 2010 El Hammam is the only fluorite mine in Morocco (production 100,000 t/year). The fluorite mineralization is in an array of fluorite-calcite veins and is characterized by unusually high REE content in carbonate minerals (1,400 ppm in calcite; up to 2,000 ppm in siderite) and in fluorite (about 600 ppm).
Cheilletz, Alain +4 more
core +5 more sources
Hydrothermal alteration processes in monzogranite: a case study from the Eastern Desert of Egypt: implications from remote sensing, geochemistry and mineralogy [PDF]
Geochemical TransactionsThe South Eastern Desert (SED) of Egypt is one of the most promising areas in Egypt; it is widely explored for exploring the rare earth elements (REEs) and uranium-bearing ores. It is a main part of the Arabian-Nubian Shield (ANS). Therefore, the present
Amira M. El Tohamy
doaj +2 more sources
Beyond d-Band Catalysis: A Critical Review and Descriptor Framework for Rare-Earth Engineering in Lithium-Sulfur Batteries. [PDF]
Adv Sci (Weinh)Rare‐earth catalysts regulate lithium–sulfur battery chemistry through f‐orbital–mediated interactions, enabling simultaneous polysulfide adsorption and catalytic conversion on conductive carbon hosts. This synergistic control suppresses the shuttle effect, accelerates redox kinetics, and guides stable Li2S nucleation, providing a mechanistic framework
Wang F +5 more
europepmc +2 more sources
Rare earth element-bearing fluorite deposits of Turkey: An overview [PDF]
, 2021 Rare Earth Element (REE)-bearing fluorite deposits in Turkey occur in association with Cenozoic post-collisional alkaline-carbonatite systems and can be divided into three groups: (1) carbonatite-associated; (2) those associated with subalkaline to ...
Kasapci, Cem +4 more
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Reply to the comment by M. Bouabdellah et al. on the paper “A late Triassic age for the El Hammam high-REE fluorite deposit (Morocco): mineralization related to the central Atlantic magmatic Province?” [PDF]
Mineralium Deposita, 2010 Field, field, field... we acknowledge M. Bouabdellah, D. Banks and A. Klugel for reminding us that geology starts with strong field work. Alkaline-type rocks effectively do occur in the El Hammam district and have not been considered in our paper. However, the presence of lamprophyric dykes as mentioned by several authors cited by Bouabdellah et al ...
Cheilletz, Alain +2 more
openaire +2 more sources
Materials Proceedings, 2023 Fluorite-rich sludge is the main waste from dicalcium phosphate (DCP) production. This sludge consists of 40–60% of CaF2, which precipitates during the reaction between fluorapatite (the main component of raw phosphorite material) and HCl.
Marcin Płachciak +3 more
doaj +1 more source
Геодинамика и тектонофизика, 2022 The Burpala massif located in the Northern Baikal region contains ore-bearing pegmatites, carbonatites and apatite-fluorite rocks with Zr-Nb-REE-rare-metal mineralization.
I. A. Sotnikova +2 more
doaj +1 more source