FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4210536970> ?p ?o ?g. }

• W4210536970 endingPage "106608" @default.
• W4210536970 startingPage "106608" @default.
• W4210536970 abstract "The geochemical variations of magmas across and along supra-subduction zones (SSZ) have been commonly attributed to profound changes in the phase and chemical compositions of the mantle source and subduction-derived melt and fluid fluxes, as well as the physical parameters (e.g. depth, temperature, oxygen fugacity etc) of slab dehydration, mineral breakdown and melting. Here we test the variability of the Late Quaternary primitive magmas in the southern and northern parts of the meridionally oriented Eastern Volcanic Belt (EVB) of Kamchatka, with a slab depth varying from 60 to 160 km. Eight high-Mg (Mg# > 60 mol%) basalts were characterized for major, trace and platinum-group element (PGE) abundances, as well as the compositions of olivine phenocrysts and olivine-hosted spinel inclusions. The basalts in our study are geochemically typical of SSZ magmas and contain similar liquidus assemblages of forsteritic olivine (Mg# 78–92 mol%), low-Ti Cr-spinel and clinopyroxene. Although the absolute abundances of major and trace elements, and their ratios, in the basalts fluctuate to some extent, the observed variability cannot be correlated with any of considered parameters in the geometry of the Kamchatka SSZ and conditions of melting. This unexpected result led to the evaluation of the platinum-group element (PGE) systematics against the lithophile and chalcophile trace element geochemistry and the compositions of phenocrysts. Total whole-rock PGE content varies from 2.3 to 11.7 ppb, whereas the normalized PGE concentration patterns are typical for supra-subduction zones magmas and broadly similar in all studied samples. They are enriched in Rh, Pd and Pt relative to mid-ocean ridge basalts (MORB) and have nearly identical concentrations of Ir-group PGE. The only parameter that correlates well with PGE contents is the average Mg# of olivine phenocrysts from 84 to 90.3 mol%. This is interpreted to result from minor cryptic fractionation of sulfide melt, together with primitive olivine, in low-to-mid crustal conditions. Negative Ru anomalies on chondrite-normalized diagrams correspond to the Fe2+/Fe3+ ratios in spinel (a proxy for magma redox conditions), which reflects a replacement of monosulfide solid solution by laurite in the mantle wedge during oxidation." @default.
• W4210536970 created "2022-02-08" @default.
• W4210536970 creator A5006313426 @default.
• W4210536970 creator A5007677980 @default.
• W4210536970 creator A5044403879 @default.
• W4210536970 creator A5048528469 @default.
• W4210536970 creator A5049841759 @default.
• W4210536970 creator A5071295123 @default.
• W4210536970 creator A5073345072 @default.
• W4210536970 creator A5074408202 @default.
• W4210536970 creator A5075307359 @default.
• W4210536970 creator A5077216533 @default.
• W4210536970 creator A5088821201 @default.
• W4210536970 creator A5090483109 @default.
• W4210536970 date "2022-03-01" @default.
• W4210536970 modified "2023-10-18" @default.
• W4210536970 title "Platinum-group elements in Late Quaternary high-Mg basalts of eastern Kamchatka: Evidence for minor cryptic sulfide fractionation in primitive arc magmas" @default.
• W4210536970 cites W1256612416 @default.
• W4210536970 cites W1967784536 @default.
• W4210536970 cites W1969859799 @default.
• W4210536970 cites W1974064481 @default.
• W4210536970 cites W1974505893 @default.
• W4210536970 cites W1987223996 @default.
• W4210536970 cites W1988547375 @default.
• W4210536970 cites W1992907521 @default.
• W4210536970 cites W1997659134 @default.
• W4210536970 cites W2001397154 @default.
• W4210536970 cites W2011238896 @default.
• W4210536970 cites W2018519636 @default.
• W4210536970 cites W2028867855 @default.
• W4210536970 cites W2032863629 @default.
• W4210536970 cites W2036365790 @default.
• W4210536970 cites W2041020109 @default.
• W4210536970 cites W2044129104 @default.
• W4210536970 cites W2045764404 @default.
• W4210536970 cites W2047900361 @default.
• W4210536970 cites W2047965201 @default.
• W4210536970 cites W2050673994 @default.
• W4210536970 cites W2056509981 @default.
• W4210536970 cites W2056670083 @default.
• W4210536970 cites W2057218369 @default.
• W4210536970 cites W2057306801 @default.
• W4210536970 cites W2058473905 @default.
• W4210536970 cites W2069053606 @default.
• W4210536970 cites W2071123829 @default.
• W4210536970 cites W2077960475 @default.
• W4210536970 cites W2078424797 @default.
• W4210536970 cites W2080980907 @default.
• W4210536970 cites W2081684341 @default.
• W4210536970 cites W2081865852 @default.
• W4210536970 cites W2087673255 @default.
• W4210536970 cites W2089421850 @default.
• W4210536970 cites W2091524492 @default.
• W4210536970 cites W2096082517 @default.
• W4210536970 cites W2098701409 @default.
• W4210536970 cites W2106059276 @default.
• W4210536970 cites W2111173087 @default.
• W4210536970 cites W2113102407 @default.
• W4210536970 cites W2116745296 @default.
• W4210536970 cites W2121891215 @default.
• W4210536970 cites W2122467685 @default.
• W4210536970 cites W2128405318 @default.
• W4210536970 cites W2279867500 @default.
• W4210536970 cites W2291506047 @default.
• W4210536970 cites W2415803713 @default.
• W4210536970 cites W2416860342 @default.
• W4210536970 cites W2514367960 @default.
• W4210536970 cites W2604587559 @default.
• W4210536970 cites W2616698005 @default.
• W4210536970 cites W2621014626 @default.
• W4210536970 cites W2623595407 @default.
• W4210536970 cites W2625327173 @default.
• W4210536970 cites W2745738676 @default.
• W4210536970 cites W2756248751 @default.
• W4210536970 cites W2756326136 @default.
• W4210536970 cites W2756364970 @default.
• W4210536970 cites W2810000934 @default.
• W4210536970 cites W2887420364 @default.
• W4210536970 cites W2897004164 @default.
• W4210536970 cites W2903588900 @default.
• W4210536970 cites W2943655136 @default.
• W4210536970 cites W2954253759 @default.
• W4210536970 cites W2990690357 @default.
• W4210536970 cites W3016737161 @default.
• W4210536970 cites W3091940935 @default.
• W4210536970 cites W3118422090 @default.
• W4210536970 cites W3133784732 @default.
• W4210536970 cites W3207805732 @default.
• W4210536970 doi "https://doi.org/10.1016/j.lithos.2022.106608" @default.
• W4210536970 hasPublicationYear "2022" @default.
• W4210536970 type Work @default.
• W4210536970 citedByCount "5" @default.
• W4210536970 countsByYear W42105369702022 @default.
• W4210536970 countsByYear W42105369702023 @default.
• W4210536970 crossrefType "journal-article" @default.
• W4210536970 hasAuthorship W4210536970A5006313426 @default.
• W4210536970 hasAuthorship W4210536970A5007677980 @default.
• W4210536970 hasAuthorship W4210536970A5044403879 @default.

• next