"Allen, Charlotte" . "Chakhmouradian, Anton" . "Carbonatites are known to contain the highest concentrations of rare-earth elements (REE) among all igneous rocks. The REE distribution of carbonatites is commonly believed to be controlled by that of the rock-forming Ca minerals (i.e., calcite, dolomite, ankerite) and apatite because of their high modal content and tolerance for the substitution of Ca by light REE (LREE). Contrary to this conjecture, calcite from the Miaoya carbonatite (China), analyzed in situ by laser-ablation inductively-coupled-plasma mass-spectrometry, is characterized by low REE contents (100--260 ppm) and relatively flat chondrite-normalized REE distribution patterns [average (La/Yb)CN = 1.6]. The carbonatite contains abundant REE-rich minerals, including monazite and fluorapatite, both precipitated earlier than the REE-poor calcite, and REE-fluorocarbonates that postdated the calcite. Hydrothermal REE-bearing fluorite and barite veins are not observed at Miaoya. The textural and analytical evidence indicates that the initiall" . "NL - Nizozemsko" . . . "118" . "1-2" . "Trace-element modeling of the magmatic evolution of rare-earth-rich carbonatite from the Miaoya deposit, central China"@en . . . "RIV/62156489:43410/10:00156507!RIV11-MSM-43410___" . "Cheng, Xu" . "Trace-element modeling of the magmatic evolution of rare-earth-rich carbonatite from the Miaoya deposit, central China"@en . "5"^^ . . "Trace-element modeling of the magmatic evolution of rare-earth-rich carbonatite from the Miaoya deposit, central China" . . . . . . "0024-4937" . . "[362D19743D56]" . . . "43410" . "Trace-element modeling of the magmatic evolution of rare-earth-rich carbonatite from the Miaoya deposit, central China" . . . "1"^^ . "Carbonatites are known to contain the highest concentrations of rare-earth elements (REE) among all igneous rocks. The REE distribution of carbonatites is commonly believed to be controlled by that of the rock-forming Ca minerals (i.e., calcite, dolomite, ankerite) and apatite because of their high modal content and tolerance for the substitution of Ca by light REE (LREE). Contrary to this conjecture, calcite from the Miaoya carbonatite (China), analyzed in situ by laser-ablation inductively-coupled-plasma mass-spectrometry, is characterized by low REE contents (100--260 ppm) and relatively flat chondrite-normalized REE distribution patterns [average (La/Yb)CN = 1.6]. The carbonatite contains abundant REE-rich minerals, including monazite and fluorapatite, both precipitated earlier than the REE-poor calcite, and REE-fluorocarbonates that postdated the calcite. Hydrothermal REE-bearing fluorite and barite veins are not observed at Miaoya. The textural and analytical evidence indicates that the initiall"@en . "Z(MSM6215648902)" . "Campbell, Ian" . . . "Lithos" . "REE minerals; calcite; carbonatite; molybdenite; REE deposits; China; fractional crystalization; mantle source; Miaoya"@en . "RIV/62156489:43410/10:00156507" . "Kynick\u00FD, Jind\u0159ich" . "11"^^ . "293191" . . . . .