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作者:Olga Vasyukova , Anthony Williams-Jones
来源:[J].LITHOS(IF 3.779), 2020, Vol.356-357
摘要:... We trace the evolution of this magma (olivine nephelinite) through fractional crystallisation of olivine and clinopyroxene followed by plagioclase, K-rich alkali feldspar and arfvedsonite to the final residues of hyper-enriched HFSE granitic pegmatites. In so doing, we sho...
作者:Surendra P Verma
来源:[J].LITHOS(IF 3.779), 2001, Vol.56 (2), pp.141-164
摘要:... The evolved andesitic to rhyolitic magmas could have originated from a basaltic magma through a combined assimilation and fractional crystallisation (AFC) process. Different compositions, representing lower crust (LC) and upper crust (UC) as well as a hypothetical crust si...
作者:Helen M. Williams , Corey Archer
来源:[J].Geochimica et Cosmochimica Acta(IF 3.884), 2011, Vol.75 (11), pp.3166-3178
摘要:... with progressive equilibrium and fractional crystallisation the Cu contents of the sulphides increase as their isotopic composition becomes less extreme and closer to the metal value. The correlation between Δ 65 Cu M–FeS and Δ 57 Fe M–FeS is therefore a product of the...
作者:Michel Bogaerts , Bruno Scaillet , Jean-Paul Liégeois ...
来源:[J].Precambrian Research(IF 4.441), 2003, Vol.124 (2), pp.149-184
摘要:... Major and trace element modelling, as well as Sr–Nd isotopes, show that fractional crystallisation—without assimilation—is the differentiation process for Lyngdal–Tranevåg. Fractionating minerals are clinopyroxene, hornblende, plagioclase, oxides, biotite, apatit...
作者:B. Marty , Y. Sano , C. France-Lanord
来源:[J].Journal of Volcanology and Geothermal Research(IF 2.193), 2001, Vol.108 (1), pp.1-10
摘要:... Since these glasses are very fresh, they provide a unique opportunity to study the behaviour of magmatic volatiles during assimilation–fractional crystallisation–degassing (AFCD). The samples are highly vesicular (up to 18%) and the volatiles trapped in vesicles consist ...
作者:Sarah Freund , Christoph Beier , Stefan Krumm ...
来源:[J].Chemical Geology(IF 3.154), 2013, Vol.347, pp.271-283
摘要:... Modelling suggests that the fractionating magma assimilated up to 30% of hydrothermally altered material after 57% fractional crystallisation of the basaltic magma in a melt lens at less than 2 km depth. In contrast, the basaltic glasses show little assimilation and clin...
作者:Heike Lorenz , Patrick Sheehan , Andreas Seidel-Morgenstern
来源:[J].Journal of Chromatography A(IF 4.612), 2001, Vol.908 (1), pp.201-214
摘要:Abstract(#br)An optimised coupling of liquid chromatography and fractional crystallisation is suggested for efficient enantioseparation. As a first stage, a chromatographic separation, preferably simulated moving bed (SMB) chromatography, is applied to achieve an enantiomeri...
作者:M. S. M. Mantovani , C. J. Hawkesworth
来源:[J].Contributions to Mineralogy and Petrology(IF 3.476), 1990, Vol.105 (3), pp.289-302
摘要:Abstract(#br)A numerical inversion program has been developed to investigate isotope and trace element variations in suites of related rocks in terms of assimilation and fractional crystallisation processes. Major element compositions constrain the degree of fractionation, an...
作者:Chris S. Marien , J. Elis Hoffmann , C.-Dieter Garbe-Schönberg ...
来源:[J].Contributions to Mineralogy and Petrology(IF 3.476), 2019, Vol.174 (4), pp.1-24
摘要:... Previously proposed models for Troodos plagiogranites have included both low-pressure dehydration melting and fractional crystallisation at deeper levels of the oceanic crust. To evaluate both models, oceanic plagiogranites from the Troodos Ophiolite Complex were analyse...
作者:K.M. Haase , S. Krumm , M. Regelous ...
来源:[J].Earth and Planetary Science Letters(IF 4.349), 2011, Vol.309 (3), pp.348-355
摘要:Abstract(#br)Silicic magmas in subduction-related settings are believed to form either by extreme crystal fractionation or by partial melting of crustal rocks, particularly hydrothermally metamorphosed mafic rocks. Oxygen isotopes in combination with Cl concentrations and ra...

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