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• W2915016123 endingPage "224" @default.
• W2915016123 startingPage "199" @default.
• W2915016123 abstract "The selenium stable isotope system emerges as a new potential tracer of volatile origin and evolution of the terrestrial planets. Accurate determination of the mantle Se isotope composition requires an assessment of Se isotopic behavior in magmatic processes and potential variations across all mantle reservoirs. Here we report the first high-precision Se isotope and Se–Te abundance data for a suite of basaltic glasses from the Pacific–Antarctic ridge. These MORBs display a narrow range in δ82/76Se values (deviation of 82Se/76Se relative to NIST SRM 3149) between −0.30 ± 0.09‰ and −0.05 ± 0.09‰, with an average of −0.16 ± 0.13‰ (2 s.d., n = 27). We quantify the main processes relevant to MORB petrogenesis in order to better understand the Se–Te elemental behavior in the mantle and investigate if these are systematically related to Se isotope variations. We show that both Se isotopes and S–Se–Te abundances of MORB melts remain unaffected by assimilation of high-temperature hydrothermal fluids and sulfides, whereas the latter has been shown to overprint the 34S/32S ratios. MORB differentiation involving sulfide segregation (sulfide liquid and monosulfide solid solution) significantly fractionates Se and Te (Se/Te ratio ∼ 45–190), with no systematic Se isotope variation. The Se–Te contents of the primary MORB melt corrected for magmatic differentiation can be successfully reproduced by near-fractional decompression melting of a mantle with 170–200 μg g−1 S (as sulfide liquid), which has either (1) “fertile lherzolite-like” Se and Te contents (80 ± 17 and 11 ± 1.7 ng g−1, respectively; 1 s.d.) or (2) distinctly lower Se (49 ± 11 ng g−1) and Te (3.5 ± 1.3 ng g−1) contents depending on the choice of experimental partition coefficients published by different studies. Regardless, our model shows that Se-Te systematics of “fertile” lithospheric peridotites preserve little primary melt depletion signatures and reflect significant, if not complete, metasomatic overprinting. Finally, based on the observed negligible Se isotopic fractionation between sulfide phase and silicate melt, we suggest that MORBs preserve their mantle source isotopic signature (δ82/76Se = −0.16 ± 0.13‰). Our MORB average is similar within uncertainty to chondritic values but significantly lighter than previously published δ82/76Se data for basalts from a variety of geodynamic settings. The subtle but significant Se isotope variation observed within the investigated MORB suite (up to ∼0.25‰) and between other mantle samples analyzed so far may reflect intrinsic source heterogeneity and potential isotopic differences across various mantle reservoirs." @default.
• W2915016123 created "2019-02-21" @default.
• W2915016123 creator A5010002903 @default.
• W2915016123 creator A5023575025 @default.
• W2915016123 creator A5038100477 @default.
• W2915016123 creator A5052783217 @default.
• W2915016123 date "2019-03-01" @default.
• W2915016123 modified "2023-09-23" @default.
• W2915016123 title "Selenium isotope and S-Se-Te elemental systematics along the Pacific-Antarctic ridge: Role of mantle processes" @default.
• W2915016123 cites W1534749586 @default.
• W2915016123 cites W1573196231 @default.
• W2915016123 cites W1631866588 @default.
• W2915016123 cites W1644002313 @default.
• W2915016123 cites W1821593081 @default.
• W2915016123 cites W1828329906 @default.
• W2915016123 cites W1893068022 @default.
• W2915016123 cites W1968554206 @default.
• W2915016123 cites W1969833669 @default.
• W2915016123 cites W1969859799 @default.
• W2915016123 cites W1971419367 @default.
• W2915016123 cites W1971745676 @default.
• W2915016123 cites W1974064481 @default.
• W2915016123 cites W1976273059 @default.
• W2915016123 cites W1976836542 @default.
• W2915016123 cites W1977374882 @default.
• W2915016123 cites W1977711085 @default.
• W2915016123 cites W1981977799 @default.
• W2915016123 cites W1982160628 @default.
• W2915016123 cites W1983545647 @default.
• W2915016123 cites W1984270882 @default.
• W2915016123 cites W1986486072 @default.
• W2915016123 cites W1987734384 @default.
• W2915016123 cites W1988520903 @default.
• W2915016123 cites W1988599392 @default.
• W2915016123 cites W1989736168 @default.
• W2915016123 cites W1990814837 @default.
• W2915016123 cites W1991555995 @default.
• W2915016123 cites W1991894787 @default.
• W2915016123 cites W1995798238 @default.
• W2915016123 cites W1996000677 @default.
• W2915016123 cites W1996491338 @default.
• W2915016123 cites W1998826816 @default.
• W2915016123 cites W1998866430 @default.
• W2915016123 cites W1999516718 @default.
• W2915016123 cites W2001397154 @default.
• W2915016123 cites W2002368048 @default.
• W2915016123 cites W2003733990 @default.
• W2915016123 cites W2005029739 @default.
• W2915016123 cites W2005141427 @default.
• W2915016123 cites W2006909272 @default.
• W2915016123 cites W2008212818 @default.
• W2915016123 cites W2009096968 @default.
• W2915016123 cites W2009725768 @default.
• W2915016123 cites W2011599012 @default.
• W2915016123 cites W2011607179 @default.
• W2915016123 cites W2012023697 @default.
• W2915016123 cites W2017515683 @default.
• W2915016123 cites W2018366877 @default.
• W2915016123 cites W2019496226 @default.
• W2915016123 cites W2020261624 @default.
• W2915016123 cites W2021677295 @default.
• W2915016123 cites W2022104527 @default.
• W2915016123 cites W2022272868 @default.
• W2915016123 cites W2022475942 @default.
• W2915016123 cites W2022552529 @default.
• W2915016123 cites W2022836659 @default.
• W2915016123 cites W2024997176 @default.
• W2915016123 cites W2027357755 @default.
• W2915016123 cites W2029176517 @default.
• W2915016123 cites W2029407151 @default.
• W2915016123 cites W2029667477 @default.
• W2915016123 cites W2031103627 @default.
• W2915016123 cites W2031131838 @default.
• W2915016123 cites W2031348196 @default.
• W2915016123 cites W2034646568 @default.
• W2915016123 cites W2034962368 @default.
• W2915016123 cites W2040473112 @default.
• W2915016123 cites W2040898314 @default.
• W2915016123 cites W2042692134 @default.
• W2915016123 cites W2044839593 @default.
• W2915016123 cites W2044900514 @default.
• W2915016123 cites W2052675726 @default.
• W2915016123 cites W2053367628 @default.
• W2915016123 cites W2055097711 @default.
• W2915016123 cites W2057306801 @default.
• W2915016123 cites W2058678773 @default.
• W2915016123 cites W2059609583 @default.
• W2915016123 cites W2061048095 @default.
• W2915016123 cites W2062104243 @default.
• W2915016123 cites W2062389607 @default.
• W2915016123 cites W2063623510 @default.
• W2915016123 cites W2068036209 @default.
• W2915016123 cites W2068421286 @default.
• W2915016123 cites W2068464003 @default.
• W2915016123 cites W2068593151 @default.
• W2915016123 cites W2074062071 @default.
• W2915016123 cites W2074330508 @default.
• W2915016123 cites W2075005790 @default.

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