Results 21 to 30 of about 54,225 (159)
This is an essay in the field of mineral processing engineering. In this paper, a rare earth and associated fluorite resource in Henan Province was studied.
Zheng Zhou +5 more
doaj +1 more source
Petrology and mineralogy of the Ulaan Del Zr-Nb-REE deposit, Lake Zone, Western Mongolia
The Ulaan Del deposit is located in the Lake Zone, Western Mongolia. In the area, middle-late Devonian alkali dykes of the Khalzan Complex are hosted in the middle-late Cambrian granodiorite-tonalite of the Togthohiinshil Complex. The alkali dykes of the
Sanjsuren Oyunbat
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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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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
doaj +1 more source
The Laal-Kan fluorite deposit situated in north margin of the Sanandaj-Sirjan metamorphic belt and Urmia-Dokhtar magmatic arc, NW Iran. The fluorite mineralization in the form of open-space filling, veins and veinlets have been deposited in the contact ...
Rezaei Azizi, Mansour +2 more
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Phenocrystic fluorite in peralkaline rhyolites, Olkaria, Kenya Rift Valley.
The first occurrence of phenocrystic fluorite in a peralkaline rhyolite is reported from Quaternary lavas (agpaitic index 1.11-1.37) erupted from the Greater Olkaria Volcanic Complex, Kenya. Fluorite compositions are almost stoichiometric, with 0.65-1.49
MacDonald, Raymond +5 more
core +3 more sources
Hydrothermal vein-type fluorite deposits are the most important metallogenic type of fluorite deposits in South China, most of which are closely related to granitoid in space; however, the genetic relationship between granitoid and fluorite ...
Gen Li +5 more
core +1 more source
The role of carbonate-fluoride melt immiscibility in shallow REE deposit evolution [PDF]
The Lugiin Gol nepheline syenite intrusion, Mongolia, hosts a range of carbonatite dikes mineralized in rare-earth elements (REE). Both carbonatites and nepheline syenite-fluoritecalcite veinlets are host to a previously unreported macroscale texture ...
Galiova, Michaela +15 more
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Geochemistry of fluorite occurrence from Feke (Adana-Turkey) in the East Taurid Mountains
WOS: 000183262100003A fluorite mineralization is observed within the sediment rock, having dimensions of about 60 m in length and between 0.4-2 m in thickness is found in the Feke (Adana) region.
Uras, Y, Oner, F, Yaman, S
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Fluorite mineralization associated with different types of magmatism is common in the Western Transbaikalia. This study deals with Arshan, Yuzhnoe, and Ulan-Ude fluorite occurrences, which are the most significant examples of carbonatite-related fluorite
Ilya V. Veksler +3 more
core +1 more source

