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• W1997086514 endingPage "200" @default.
• W1997086514 startingPage "184" @default.
• W1997086514 abstract "Arc magmatism is a complex process involving generation of primary melts in the mantle wedge and chemical refinement of these melts into differentiated products akin to continental crust. Interaction of magmas (cooling, crystallization and assimilation) with the overlying crust, particularly if it is thick, is one way by which primary basalts are refined into more evolved compositions. Here, we explore the role of the mantle lithosphere as a trap and/or reactive filter of magmas. We use mantle xenoliths from the Sierra Nevada continental arc in California as a probe into sub-Moho processes. Based on clinopyroxene modal abundance and major, minor and moderately incompatible trace element concentrations, the peridotites define a refertilization trend that increases with depth, grading from clinopyroxene-poor (<5%), undeformed spinel peridotites equilibrated at <3 GPa (<90 km) to clinopyroxene-rich (10–20%), porphyroclastic garnet peridotites equilibrated between 3 and 3.5 GPa (90–105 km), the latter presumably approaching the top of the subducting slab. The petrology and geochemistry of the xenoliths suggest that the fertile peridotites were originally depleted spinel peridotites, which were subsequently refertilized. Incompatible trace element geochemistry reveals a pervasive cryptic metasomatic overprint in all peridotites, suggesting involvement of small amounts of subduction-derived fluids from the long-lived Farallon plate beneath western North America. However, bulk reconstructed δOSMOW18 values of the peridotites, including the most refertilized, fall between 5.4 and 5.9‰, within the natural variability of unmetasomatized mantle (∼5.5±0.2‰). Together with Sm, Yb, and Ca compositional data, the oxygen isotope data suggest that the role of slab or sediment melts in refertilizing the peridotites was negligible (<5% in terms of added melt mass). Instead, binary mixing models suggest that many of the Sierran garnet peridotites, particularly those with high clinopyroxene modes, had up to 30% mantle-derived melt added. Our data suggest that refertilization of the deep arc lithosphere, via melt entrapment and clinopyroxene precipitation, may be an important process that modifies the composition of primary arc magmas before they reach the crust and shallowly differentiate. Comparison of our data with a global compilation of arc-related mantle xenoliths suggests that sub-Moho refertilization may be more extensive beneath mature arcs, such as continental arcs, compared to juvenile island arcs, possibly because of the greater thickness of crust and lithosphere beneath mature and island arcs." @default.
• W1997086514 created "2016-06-24" @default.
• W1997086514 creator A5000404492 @default.
• W1997086514 creator A5009480444 @default.
• W1997086514 creator A5052287151 @default.
• W1997086514 date "2014-07-01" @default.
• W1997086514 modified "2023-10-11" @default.
• W1997086514 title "Thickening, refertilization, and the deep lithosphere filter in continental arcs: Constraints from major and trace elements and oxygen isotopes" @default.
• W1997086514 cites W1527757327 @default.
• W1997086514 cites W1671054346 @default.
• W1997086514 cites W1912123584 @default.
• W1997086514 cites W1966685022 @default.
• W1997086514 cites W1968610719 @default.
• W1997086514 cites W1969859799 @default.
• W1997086514 cites W1972012993 @default.
• W1997086514 cites W1972672798 @default.
• W1997086514 cites W1972746128 @default.
• W1997086514 cites W1976087859 @default.
• W1997086514 cites W1979082610 @default.
• W1997086514 cites W1979734965 @default.
• W1997086514 cites W1986807080 @default.
• W1997086514 cites W1991334434 @default.
• W1997086514 cites W1994048706 @default.
• W1997086514 cites W1994847567 @default.
• W1997086514 cites W1999075746 @default.
• W1997086514 cites W2001131533 @default.
• W1997086514 cites W2002041994 @default.
• W1997086514 cites W2004993774 @default.
• W1997086514 cites W2005284674 @default.
• W1997086514 cites W2007908801 @default.
• W1997086514 cites W2007917142 @default.
• W1997086514 cites W2010280096 @default.
• W1997086514 cites W2012487111 @default.
• W1997086514 cites W2016701904 @default.
• W1997086514 cites W2017353146 @default.
• W1997086514 cites W2021014922 @default.
• W1997086514 cites W2023320566 @default.
• W1997086514 cites W2024814277 @default.
• W1997086514 cites W2024953052 @default.
• W1997086514 cites W2026475967 @default.
• W1997086514 cites W2027323798 @default.
• W1997086514 cites W2034422408 @default.
• W1997086514 cites W2035087231 @default.
• W1997086514 cites W2036383361 @default.
• W1997086514 cites W2036507994 @default.
• W1997086514 cites W2038407831 @default.
• W1997086514 cites W2040470138 @default.
• W1997086514 cites W2045479126 @default.
• W1997086514 cites W2045986371 @default.
• W1997086514 cites W2046141409 @default.
• W1997086514 cites W2046329920 @default.
• W1997086514 cites W2051671391 @default.
• W1997086514 cites W2056346345 @default.
• W1997086514 cites W2058000599 @default.
• W1997086514 cites W2059740743 @default.
• W1997086514 cites W2060439178 @default.
• W1997086514 cites W2060655431 @default.
• W1997086514 cites W2061546868 @default.
• W1997086514 cites W2062471418 @default.
• W1997086514 cites W2062995566 @default.
• W1997086514 cites W2064394720 @default.
• W1997086514 cites W2065384792 @default.
• W1997086514 cites W2065792542 @default.
• W1997086514 cites W2069192479 @default.
• W1997086514 cites W2069330001 @default.
• W1997086514 cites W2071336893 @default.
• W1997086514 cites W2071631388 @default.
• W1997086514 cites W2073666723 @default.
• W1997086514 cites W2073905559 @default.
• W1997086514 cites W2075199408 @default.
• W1997086514 cites W2075566610 @default.
• W1997086514 cites W2076365481 @default.
• W1997086514 cites W2077222169 @default.
• W1997086514 cites W2078129745 @default.
• W1997086514 cites W2080034753 @default.
• W1997086514 cites W2080368015 @default.
• W1997086514 cites W2080588955 @default.
• W1997086514 cites W2080872690 @default.
• W1997086514 cites W2081433597 @default.
• W1997086514 cites W2082692284 @default.
• W1997086514 cites W2084422999 @default.
• W1997086514 cites W2086433479 @default.
• W1997086514 cites W2093116459 @default.
• W1997086514 cites W2096943763 @default.
• W1997086514 cites W2099914884 @default.
• W1997086514 cites W2100376263 @default.
• W1997086514 cites W2101782242 @default.
• W1997086514 cites W2103819079 @default.
• W1997086514 cites W2117438620 @default.
• W1997086514 cites W2119104917 @default.
• W1997086514 cites W2119438235 @default.
• W1997086514 cites W2119775570 @default.
• W1997086514 cites W2120265417 @default.
• W1997086514 cites W2120794222 @default.
• W1997086514 cites W2121075714 @default.
• W1997086514 cites W2123975486 @default.
• W1997086514 cites W2124644030 @default.
• W1997086514 cites W2127203865 @default.

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