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• W3013516698 abstract "Abstract. The reaction between melt derived by mafic heterogeneities and peridotites in an upwelling mantle may form hybrid olivine-free pyroxenites. In order to evaluate the impact of these lithologies on the chemistry of primitive magmas and their ability to give rise to new mantle heterogeneities, we experimentally investigate the melting relations at 2 GPa of the model olivine-free pyroxenite Px1 (XMg=0.81, SiO2=52.9 wt %, Al2O3 = 11.3 wt %, CaO = 7.6 wt %). The subsolidus assemblage consists of clinopyroxene, orthopyroxene, and garnet. At 2 GPa, the solidus of Px1 is located between 1250 and 1280 ∘C, at a temperature about 70 ∘C lower than the solidus of fertile lherzolite. At increasing melt fraction, the sequence of mineral phase disappearance is garnet–clinopyroxene–orthopyroxene. Across the solidus, partial melting of Px1 is controlled by reaction garnet + clinopyroxene = liquid + orthopyroxene, and above 1300 ∘C, once garnet is completely consumed, by reaction clinopyroxene + orthopyroxene = liquid. Orthopyroxene is the liquidus phase, and at 1480 ∘C olivine-free pyroxenite Px1 is completely molten indicating a melting interval of about 200 ∘C. Isobaric melt productivity is similar to garnet clinopyroxenites, and it is more than 3 times that of a fertile lherzolite at 1400 ∘C. Px1 partial melts cover a wide range of XMg (0.57–0.84), with SiO2, Al2O3 and Na2O decreasing and Cr2O3 increasing with the degree of melting. CaO content in partial melts increases as long as clinopyroxene is involved in melting reactions and decreases after its exhaustion. At 2 GPa and for melting degrees higher than 10 %, Px1 produces MgO-rich basaltic andesites matching the composition of eclogitic melts in terms of silica and alkali contents but with significantly higher XMg values. These melts differ from those derived from lherzolites at 2 GPa by higher SiO2 and lower CaO contents. Their high silica activity makes them very reactive with mantle peridotite producing hybrid orthopyroxene-rich lithologies and residual websterites. Melt–rock reactions likely prevent direct extraction of melts produced by olivine-free pyroxenites." @default.
• W3013516698 created "2020-04-03" @default.
• W3013516698 creator A5012486594 @default.
• W3013516698 creator A5028204473 @default.
• W3013516698 date "2020-03-23" @default.
• W3013516698 modified "2023-09-30" @default.
• W3013516698 title "Melting relations of anhydrous olivine-free pyroxenite Px1 at 2&amp;#8201;GPa" @default.
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• W3013516698 cites W1974731988 @default.
• W3013516698 cites W1976868752 @default.
• W3013516698 cites W1983316554 @default.
• W3013516698 cites W1985893553 @default.
• W3013516698 cites W1993661498 @default.
• W3013516698 cites W2003446684 @default.
• W3013516698 cites W2003948785 @default.
• W3013516698 cites W2008782416 @default.
• W3013516698 cites W2027293310 @default.
• W3013516698 cites W2030870291 @default.
• W3013516698 cites W2035833878 @default.
• W3013516698 cites W2037065402 @default.
• W3013516698 cites W2038979071 @default.
• W3013516698 cites W2039067288 @default.
• W3013516698 cites W2042423268 @default.
• W3013516698 cites W2042692134 @default.
• W3013516698 cites W2046141409 @default.
• W3013516698 cites W2049044264 @default.
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• W3013516698 cites W2056122128 @default.
• W3013516698 cites W2058000599 @default.
• W3013516698 cites W2061501868 @default.
• W3013516698 cites W2068398280 @default.
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• W3013516698 cites W2124223242 @default.
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• W3013516698 cites W2127503576 @default.
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• W3013516698 doi "https://doi.org/10.5194/ejm-32-251-2020" @default.
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