Matches in SemOpenAlex for { <https://semopenalex.org/work/W3159290096> ?p ?o ?g. }
- W3159290096 abstract "Resolving the geochemical discrepancies in Nb/Ta between the bulk continental crust and its parental mantle melts can provide insights into the processes by which basaltic magmas differentiated into the felsic crust. Deep-seated garnet pyroxenite cumulates (i.e., arclogite) have high Nb/Ta values due to the presence of high Nb/Ta-rutile. For this reason, rutile-bearing arclogites having Nb-rich composition were proposed to complement the low Nb/Ta nature of the continental crust and evolved arc magmas, that is to say, continental arc magma evolution dominantly occurred in the stability field of garnet. However, this suggestion is challenged by the incomplete understanding of the role of rutile in the Nb/Ta fractionation during arc magma evolution due to insufficient partitioning data at low temperatures (T ≤ 1,000°C). Here, we determined Nb and Ta partitioning ratios in rutile-felsic melt systems at 2.0 GPa, 850–1,000°C and ∼4–20 wt.% H2O. Our results confirm that equilibrium crystallization of rutile with respect to Nb and Ta will not impart lower Nb/Ta values to any derivative liquids, whereas diffusive fractionation of Nb/Ta in siliceous melts during the growth of rutile can reduce Nb/Ta ratios in melts. However, a positive correlation between Nb/Ta and Dy/Yb for mature continental arc magmas, incipient continental arc magmas, island arc magmas, and global arc magmas indicates that amphibole rather than rutile-bearing arclogite was responsible for causing low Nb/Ta ratios of many evolved intermediate rocks. Accordingly, the chemical differentiation from primary basaltic to average andesitic compositions of the continental crust mainly occurred in the stability field of amphibole." @default.
- W3159290096 created "2021-05-10" @default.
- W3159290096 creator A5003852242 @default.
- W3159290096 creator A5006901857 @default.
- W3159290096 creator A5015738393 @default.
- W3159290096 creator A5017541508 @default.
- W3159290096 creator A5040843536 @default.
- W3159290096 date "2021-03-01" @default.
- W3159290096 modified "2023-10-02" @default.
- W3159290096 title "Genesis of Intermediate and Silicic Arc Magmas Constrained by Nb/Ta Fractionation" @default.
- W3159290096 cites W1636923407 @default.
- W3159290096 cites W1965635119 @default.
- W3159290096 cites W1968103236 @default.
- W3159290096 cites W1973012528 @default.
- W3159290096 cites W1981716817 @default.
- W3159290096 cites W1985649750 @default.
- W3159290096 cites W1988424225 @default.
- W3159290096 cites W1996340995 @default.
- W3159290096 cites W1999751711 @default.
- W3159290096 cites W2000769549 @default.
- W3159290096 cites W2002733845 @default.
- W3159290096 cites W2003785447 @default.
- W3159290096 cites W2008102846 @default.
- W3159290096 cites W2018166835 @default.
- W3159290096 cites W2020866103 @default.
- W3159290096 cites W2029792090 @default.
- W3159290096 cites W2035283420 @default.
- W3159290096 cites W2037705816 @default.
- W3159290096 cites W2037708864 @default.
- W3159290096 cites W2039050037 @default.
- W3159290096 cites W2041989597 @default.
- W3159290096 cites W2043521417 @default.
- W3159290096 cites W2052594374 @default.
- W3159290096 cites W2058459535 @default.
- W3159290096 cites W2062921306 @default.
- W3159290096 cites W2067336738 @default.
- W3159290096 cites W2071599847 @default.
- W3159290096 cites W2074674283 @default.
- W3159290096 cites W2075358942 @default.
- W3159290096 cites W2075502267 @default.
- W3159290096 cites W2083215688 @default.
- W3159290096 cites W2086369709 @default.
- W3159290096 cites W2086433479 @default.
- W3159290096 cites W2088528371 @default.
- W3159290096 cites W2089561399 @default.
- W3159290096 cites W2092235841 @default.
- W3159290096 cites W2094409770 @default.
- W3159290096 cites W2098262145 @default.
- W3159290096 cites W2099138418 @default.
- W3159290096 cites W2108819209 @default.
- W3159290096 cites W2124162014 @default.
- W3159290096 cites W2129755303 @default.
- W3159290096 cites W2133179126 @default.
- W3159290096 cites W2143575325 @default.
- W3159290096 cites W2145898590 @default.
- W3159290096 cites W2152116821 @default.
- W3159290096 cites W2152642790 @default.
- W3159290096 cites W2159104880 @default.
- W3159290096 cites W2162891705 @default.
- W3159290096 cites W2164589996 @default.
- W3159290096 cites W2170189319 @default.
- W3159290096 cites W2280732563 @default.
- W3159290096 cites W2417074952 @default.
- W3159290096 cites W2503566979 @default.
- W3159290096 cites W2625327173 @default.
- W3159290096 cites W2727180601 @default.
- W3159290096 cites W2792990596 @default.
- W3159290096 cites W2796606959 @default.
- W3159290096 cites W2800725095 @default.
- W3159290096 cites W2807582893 @default.
- W3159290096 cites W2884681080 @default.
- W3159290096 cites W2909262288 @default.
- W3159290096 cites W2918851170 @default.
- W3159290096 cites W2939705497 @default.
- W3159290096 cites W2954253759 @default.
- W3159290096 cites W2982106406 @default.
- W3159290096 cites W2992642828 @default.
- W3159290096 cites W3004776690 @default.
- W3159290096 cites W3005104984 @default.
- W3159290096 cites W4245287945 @default.
- W3159290096 doi "https://doi.org/10.1029/2020jb020708" @default.
- W3159290096 hasPublicationYear "2021" @default.
- W3159290096 type Work @default.
- W3159290096 sameAs 3159290096 @default.
- W3159290096 citedByCount "9" @default.
- W3159290096 countsByYear W31592900962021 @default.
- W3159290096 countsByYear W31592900962022 @default.
- W3159290096 countsByYear W31592900962023 @default.
- W3159290096 crossrefType "journal-article" @default.
- W3159290096 hasAuthorship W3159290096A5003852242 @default.
- W3159290096 hasAuthorship W3159290096A5006901857 @default.
- W3159290096 hasAuthorship W3159290096A5015738393 @default.
- W3159290096 hasAuthorship W3159290096A5017541508 @default.
- W3159290096 hasAuthorship W3159290096A5040843536 @default.
- W3159290096 hasConcept C11872896 @default.
- W3159290096 hasConcept C120806208 @default.
- W3159290096 hasConcept C127313418 @default.
- W3159290096 hasConcept C141646446 @default.
- W3159290096 hasConcept C151730666 @default.
- W3159290096 hasConcept C161509811 @default.