Matches in SemOpenAlex for { <https://semopenalex.org/work/W2020996507> ?p ?o ?g. }
- W2020996507 endingPage "82" @default.
- W2020996507 startingPage "72" @default.
- W2020996507 abstract "This paper examines phase equilibria and mass balance constraints on Fe enrichment in tholeiitic liquids in plutonic environments. The peak of Fe enrichment is thought to roughly coincide with magma saturation in Fe–Ti oxides; and olivine starts to react with the liquid at about the same time. This crucial stage of crystallization is examined in detail using a compilation of chemical analyses of 64 experimental charges that comprise liquids (quenched glasses) equilibrated with the liquidus assemblage of olivine, plagioclase, high-Ca pyroxene, and low-Ca pyroxene. Some samples also contain Fe–Ti oxides. It is shown that the 4-phase liquidus assemblage does not constrain a narrow range of liquid compositions. The concentrations of SiO2 in the selection of experimental glasses vary broadly from 42 to 66 wt.%. Silica content shows strong negative correlations with FeO and CaO/Al2O3, and strong positive correlation with alkalis. Extreme Fe enrichment above 22 wt.% FeO is observed only in alkali-free or alkali-poor liquids. Broad compositional variations for the multiply-saturated liquids are attributed to strong non-ideality and complex concentration-activity relationships in ferrobasaltic melts. Liquid immiscibility characteristic of Fe-rich silicate liquids is the ultimate consequence of non-ideality. Petrogenetic implications of phase equilibria and mass balance constraints are discussed for a classical example of the Skaergaard intrusion in East Greenland, where the trend of extreme Fe enrichment has been in contention. It is proposed that seemingly conflicting results of experiments on Skaergaard natural cumulate rocks and model melt compositions can be reconciled if it is assumed that silicate liquid immiscibility in Skaergaard started not at the very end of crystallization but earlier, soon after the start of ilmenite and magnetite crystallization." @default.
- W2020996507 created "2016-06-24" @default.
- W2020996507 creator A5024342576 @default.
- W2020996507 date "2009-07-01" @default.
- W2020996507 modified "2023-09-30" @default.
- W2020996507 title "Extreme iron enrichment and liquid immiscibility in mafic intrusions: Experimental evidence revisited" @default.
- W2020996507 cites W1964224363 @default.
- W2020996507 cites W1966397334 @default.
- W2020996507 cites W1966593827 @default.
- W2020996507 cites W1973144803 @default.
- W2020996507 cites W1979536186 @default.
- W2020996507 cites W1981304929 @default.
- W2020996507 cites W1981839355 @default.
- W2020996507 cites W1982255582 @default.
- W2020996507 cites W1996089667 @default.
- W2020996507 cites W1999519724 @default.
- W2020996507 cites W2005236071 @default.
- W2020996507 cites W2009794756 @default.
- W2020996507 cites W2019940244 @default.
- W2020996507 cites W2020051329 @default.
- W2020996507 cites W2021145441 @default.
- W2020996507 cites W2034422408 @default.
- W2020996507 cites W2036710144 @default.
- W2020996507 cites W2042572559 @default.
- W2020996507 cites W2042692134 @default.
- W2020996507 cites W2051795402 @default.
- W2020996507 cites W2055736194 @default.
- W2020996507 cites W2058780954 @default.
- W2020996507 cites W2070416200 @default.
- W2020996507 cites W2072206013 @default.
- W2020996507 cites W2074864034 @default.
- W2020996507 cites W2087339805 @default.
- W2020996507 cites W2101342695 @default.
- W2020996507 cites W2124378120 @default.
- W2020996507 cites W2130054268 @default.
- W2020996507 cites W2144115675 @default.
- W2020996507 cites W2147118259 @default.
- W2020996507 cites W2149911147 @default.
- W2020996507 cites W2151413612 @default.
- W2020996507 cites W2156333576 @default.
- W2020996507 cites W2163144293 @default.
- W2020996507 cites W2315818844 @default.
- W2020996507 cites W2317472552 @default.
- W2020996507 cites W2318249287 @default.
- W2020996507 cites W2320377082 @default.
- W2020996507 cites W2324495186 @default.
- W2020996507 cites W2328646489 @default.
- W2020996507 cites W2330204384 @default.
- W2020996507 cites W2331067066 @default.
- W2020996507 cites W2331765596 @default.
- W2020996507 cites W2333414322 @default.
- W2020996507 cites W2995406297 @default.
- W2020996507 cites W4376453781 @default.
- W2020996507 doi "https://doi.org/10.1016/j.lithos.2008.10.003" @default.
- W2020996507 hasPublicationYear "2009" @default.
- W2020996507 type Work @default.
- W2020996507 sameAs 2020996507 @default.
- W2020996507 citedByCount "40" @default.
- W2020996507 countsByYear W20209965072012 @default.
- W2020996507 countsByYear W20209965072013 @default.
- W2020996507 countsByYear W20209965072014 @default.
- W2020996507 countsByYear W20209965072015 @default.
- W2020996507 countsByYear W20209965072016 @default.
- W2020996507 countsByYear W20209965072017 @default.
- W2020996507 countsByYear W20209965072018 @default.
- W2020996507 countsByYear W20209965072019 @default.
- W2020996507 countsByYear W20209965072020 @default.
- W2020996507 countsByYear W20209965072021 @default.
- W2020996507 countsByYear W20209965072023 @default.
- W2020996507 crossrefType "journal-article" @default.
- W2020996507 hasAuthorship W2020996507A5024342576 @default.
- W2020996507 hasConcept C11872896 @default.
- W2020996507 hasConcept C120806208 @default.
- W2020996507 hasConcept C121332964 @default.
- W2020996507 hasConcept C127313418 @default.
- W2020996507 hasConcept C139347428 @default.
- W2020996507 hasConcept C145653223 @default.
- W2020996507 hasConcept C151730666 @default.
- W2020996507 hasConcept C161509811 @default.
- W2020996507 hasConcept C167284885 @default.
- W2020996507 hasConcept C17409809 @default.
- W2020996507 hasConcept C178790620 @default.
- W2020996507 hasConcept C183222429 @default.
- W2020996507 hasConcept C183282558 @default.
- W2020996507 hasConcept C185592680 @default.
- W2020996507 hasConcept C198091228 @default.
- W2020996507 hasConcept C199289684 @default.
- W2020996507 hasConcept C203036418 @default.
- W2020996507 hasConcept C2776230739 @default.
- W2020996507 hasConcept C2777335606 @default.
- W2020996507 hasConcept C2778998827 @default.
- W2020996507 hasConcept C2779181077 @default.
- W2020996507 hasConcept C2779870107 @default.
- W2020996507 hasConcept C2780364934 @default.
- W2020996507 hasConcept C44280652 @default.
- W2020996507 hasConcept C67236022 @default.
- W2020996507 hasConcept C97355855 @default.
- W2020996507 hasConceptScore W2020996507C11872896 @default.