Lanthanum Diffusion in Fluorapatite at 400 °C, 50 MPa and 4–16 wt %
Separations, 2021 Apatite is an important carrier of rare earth elements (REEs) and phosphorite is a potential REEs resource. However, the influence of hydrothermal fluids on the migration and enrichment of REE in apatite remains controversial.
Xiqiang Liu, Hui Zhang, Yunlong Liu
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REE patterns for apatites from Proterozoic phosphatic metasediments, Finland [PDF]
Bulletin of the Geological Society of Finland, 1983 Several occurrences of uranium- and apatite-bearing metasediments are known in the Precambrian of Finland. The characteristic rock types in the occurrences: metaphosphorite, apatite-bearing carbonate and calc-silicate rocks and apatite-quartz-feldspar ...
P. Rehtijärvi
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Известия Томского политехнического университета: Инжиниринг георесурсов, 2018 The relevance of the work is caused by the fact that the study of the coefficients of REE+Y distribution between the minerals-concentrators of these elements and between minerals and sulfate fluids in various alkaline and weakly acidic systems makes it ...
Galina Petrovna Shironosova +1 more
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Sr-BEARING PHOSPHATES OF THE APATITE SUPERGROUP FROM THE ALKALINE ROCKS OF THE KO [PDF]
Минералогия, 2021 The paper presents a mineralogical description of Sr-bearing phosphates of the apatite supergroup found in eudialyte-aegirine-albite rocks of the Konder pluton, Khabarovsk krai.
A.S. Osipov, A.A. Antonov, N.S. Vlasenko
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REE-Nb MINERALIZATION IN TRACHYTES AND RHYOLITES OF THE KHULAM VOLCANO-PLUTONIC COMPLEX, NORTH CAUCASUS [PDF]
Минералогия, 2021 The paper presents the first data on the composition of REE and Nb mineralization in the Middle Jurassic moderately alkaline felsic and moderately acid rocks of the Khulam volcano-plutonic complex at the territory of Kabardino-Balkaria, central part of ...
E.N. Kaigorodova +3 more
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MINERALOGICAL-PETROGRAPHIC FEATURES OF SYENITIC MIGMATITES OF THE ILMENOGORSKY MIASKITE BLOCK (SOUTH URALS) [PDF]
Минералогия, 2019 Syenitic migmatites of the contact of the Ilmenogorsky miaskite block are characterized by high (>500 ppm) contents of REEs, which are mainly hosted in fluorapatite and titanite of the leucosome.
А.B. Nemov +3 more
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Multidisciplinary study of thorium mobility: formation of turkestanite and steacyite analogues, and structural insights using an XRD-directed microcrystal preparation technique. [PDF]
Acta Crystallogr B Struct Sci Cryst Eng MaterA novel focused ion beam and scanning electron microscope‐based technique has been developed for mounting microcrystals on carbon fibre, making them immediately compatible with single‐crystal X‐ray diffraction. This method has been successfully applied to studying the crystal chemistry of a synthetic Th‐bearing, Na analogues of turkestanite and ...
Stachowicz M +7 more
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The origin and composition of carbonatite-derived carbonate-bearing fluorapatite deposits [PDF]
, 2020 Carbonate-bearing fluorapatite rocks occur at over 30 globally distributed carbonatite complexes and represent a substantial potential supply of phosphorus for the fertiliser industry.
Fallon, Emily K +23 more
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Luminescence spectroscopy of natural and synthetic REE-bearing minerals [PDF]
, 2009 This study investigates the photoluminescence (PL), cathodoluminescence (CL), radioluminescence (RL) and ionoluminescence (IL) of natural and synthetic minerals.
Friis, Henrik
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Russian Journal of Earth Sciences, 2023 A thermodynamic study was carried out in order to determine the forms of transport for the entire series of lanthanides and their ratio with changing parameters of a hydrothermal fluid of moderate concentrations of chloride, carbonate and fluoride ...
Shironosova Galina, Prokopyev Ilya
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