"Farka\u0161, Juraj" . "Calcium isotopic ratios and rare earth element abundances in refractory inclusions from Allende CV3 chondrite"@en . "S" . "Refractory inclusions in primitive meteorites are the oldest objects formed in the Solar System. They exhibit large mass-dependent isotopic effects in many elements, including Si, Mg and Ca, indicative of their complex origin. We report data for both mass dependent (d) and mass-independent (e) Ca isotopic effects, and rare earth element (REE) abundances in six refractory inclusions from the Allende meteorite. Data reveal mass-dependent Ca isotopic effects in these refractory inclusions, with d44/40Ca ranging from -5.60 to +0.35, which are significantly lower than that of the bulk silicate Earth. Importantly, d44/40Ca is correlated with REE patterns: refractory inclusions with Group II REE patterns have lighter Ca isotope compositions compared to those with Group I REE patterns. The studied refractory inclusions form negative 44Ca/40Ca-Tm/Er trends, implying segregation of up to 3% of an ultrarefractory evaporation residue from a chondritic reservoir prior to the formation of refractory inclusions."@en . "41330" . . "Calcium Isotopes Refractory Inclusions Allende Chondrite"@en . . "CZ - \u010Cesk\u00E1 republika" . . "RIV/60460709:41330/12:51803!RIV13-MSM-41330___" . . "RIV/60460709:41330/12:51803" . "Shichun, Huang" . "125797" . . . . "Stein, Jacobsen" . "[B523F5ED1654]" . "1"^^ . . "14"^^ . "GEOCHIMICA ET COSMOCHIMICA ACTA" . . "Refractory inclusions in primitive meteorites are the oldest objects formed in the Solar System. They exhibit large mass-dependent isotopic effects in many elements, including Si, Mg and Ca, indicative of their complex origin. We report data for both mass dependent (d) and mass-independent (e) Ca isotopic effects, and rare earth element (REE) abundances in six refractory inclusions from the Allende meteorite. Data reveal mass-dependent Ca isotopic effects in these refractory inclusions, with d44/40Ca ranging from -5.60 to +0.35, which are significantly lower than that of the bulk silicate Earth. Importantly, d44/40Ca is correlated with REE patterns: refractory inclusions with Group II REE patterns have lighter Ca isotope compositions compared to those with Group I REE patterns. The studied refractory inclusions form negative 44Ca/40Ca-Tm/Er trends, implying segregation of up to 3% of an ultrarefractory evaporation residue from a chondritic reservoir prior to the formation of refractory inclusions." . . . . "Calcium isotopic ratios and rare earth element abundances in refractory inclusions from Allende CV3 chondrite" . "5"^^ . "Calcium isotopic ratios and rare earth element abundances in refractory inclusions from Allende CV3 chondrite" . "77" . "2012" . "000299010400017" . . "Petaev, Michail" . "Gang, Yu" . "0016-7037" . "Calcium isotopic ratios and rare earth element abundances in refractory inclusions from Allende CV3 chondrite"@en .