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• W2891501724 endingPage "63" @default.
• W2891501724 startingPage "46" @default.
• W2891501724 abstract "Negative Cerium (Ce) anomalies are observed in chondrite-normalized Rare Earth Element patterns from various volcanic arc suites. These anomalies are well defined in volcanic rocks from the Mariana arc and have been interpreted as the result of addition of subducted sediments to the arc magma sources. This study combines 143Nd/144Nd and 138Ce/142Ce isotope measurements in Mariana volcanic rocks that have Ce anomalies ranging from 0.97 to 0.90. The dataset includes sediments sampled immediately before subduction at the Mariana Trench (Sites 801 and 802 of ODP Leg 129) and primitive basalts from the Southern Mariana Trough (back-arc basin). Binary mixing models between the local depleted mantle and an enriched end-member using both types of sediment (biosiliceous and volcaniclastic) found in the sedimentary column in front of the arc are calculated. Marianas arc lavas have Ce and Nd isotopic compositions that require <2.5% of a sediment component derived from the volcaniclastics. With this proportion of sediment, most of the Ce/Ce* range measured in lavas is reproduced. Thus, this study confirms that the origin of the Ce anomalies in the Mariana arc magmas can be principally attributed to recycling of trench sediments through active subduction. The participation of a component derived from biosiliceous sediments does not explain the Ce-Nd isotope composition of the lavas because the involved proportion is too high (up to 8%) in comparison to results obtained from other geochemical proxys. Using this end-member, the modeled Ce anomalies are also too high (0.91–0.84) in comparison to those measured in lavas. Various processes and conditions are able to generate Ce anomalies: oxygen fugacity, residual mineral phases, partial melting, fractional crystallization and tropical weathering. Their influence in the case of Mariana volcanic arc magmas seems to be very limited but partial melting effect may explain the lowest measured Ce/Ce* values. Magmatic processes cannot be definitely ruled out in producing Ce anomalies in other arc system environments. Additional experimental data, however, are needed for a better understanding of the behavior of cerium relative to its neighboring elements. Also, this study highlights the importance of using local depleted mantle and sediments to model the isotopic compositions of arc lavas." @default.
• W2891501724 created "2018-09-27" @default.
• W2891501724 creator A5006371003 @default.
• W2891501724 creator A5019827486 @default.
• W2891501724 creator A5023011839 @default.
• W2891501724 creator A5023740413 @default.
• W2891501724 creator A5040096418 @default.
• W2891501724 creator A5040237658 @default.
• W2891501724 creator A5079327675 @default.
• W2891501724 date "2018-11-01" @default.
• W2891501724 modified "2023-10-13" @default.
• W2891501724 title "Origin of negative cerium anomalies in subduction-related volcanic samples: Constraints from Ce and Nd isotopes" @default.
• W2891501724 cites W1220526507 @default.
• W2891501724 cites W1518424961 @default.
• W2891501724 cites W1534749586 @default.
• W2891501724 cites W1566514932 @default.
• W2891501724 cites W1636995053 @default.
• W2891501724 cites W1650671565 @default.
• W2891501724 cites W1675648967 @default.
• W2891501724 cites W1950511920 @default.
• W2891501724 cites W1969859799 @default.
• W2891501724 cites W1972379022 @default.
• W2891501724 cites W1974795382 @default.
• W2891501724 cites W1975384952 @default.
• W2891501724 cites W1976273059 @default.
• W2891501724 cites W1977764033 @default.
• W2891501724 cites W1981852420 @default.
• W2891501724 cites W1989475913 @default.
• W2891501724 cites W1989480829 @default.
• W2891501724 cites W1990661530 @default.
• W2891501724 cites W1990737863 @default.
• W2891501724 cites W1990804700 @default.
• W2891501724 cites W1992599299 @default.
• W2891501724 cites W1994930702 @default.
• W2891501724 cites W1998707404 @default.
• W2891501724 cites W2000027357 @default.
• W2891501724 cites W2000174130 @default.
• W2891501724 cites W2008364272 @default.
• W2891501724 cites W2009641230 @default.
• W2891501724 cites W2010809235 @default.
• W2891501724 cites W2011607179 @default.
• W2891501724 cites W2013557419 @default.
• W2891501724 cites W2014832120 @default.
• W2891501724 cites W2015088208 @default.
• W2891501724 cites W2019602420 @default.
• W2891501724 cites W2022696550 @default.
• W2891501724 cites W2024496784 @default.
• W2891501724 cites W2029286352 @default.
• W2891501724 cites W2029602159 @default.
• W2891501724 cites W2030800261 @default.
• W2891501724 cites W2031557774 @default.
• W2891501724 cites W2031928338 @default.
• W2891501724 cites W2032466071 @default.
• W2891501724 cites W2034173314 @default.
• W2891501724 cites W2034487808 @default.
• W2891501724 cites W2034767561 @default.
• W2891501724 cites W2037114051 @default.
• W2891501724 cites W2037136824 @default.
• W2891501724 cites W2037232404 @default.
• W2891501724 cites W2042559327 @default.
• W2891501724 cites W2049566684 @default.
• W2891501724 cites W2051790411 @default.
• W2891501724 cites W2055274306 @default.
• W2891501724 cites W2057560563 @default.
• W2891501724 cites W2058314652 @default.
• W2891501724 cites W2062218969 @default.
• W2891501724 cites W2064155459 @default.
• W2891501724 cites W2064241548 @default.
• W2891501724 cites W2067413419 @default.
• W2891501724 cites W2070490601 @default.
• W2891501724 cites W2070920581 @default.
• W2891501724 cites W2073451667 @default.
• W2891501724 cites W2074029482 @default.
• W2891501724 cites W2075740607 @default.
• W2891501724 cites W2077578738 @default.
• W2891501724 cites W2077985074 @default.
• W2891501724 cites W2078840355 @default.
• W2891501724 cites W2080860526 @default.
• W2891501724 cites W2088223235 @default.
• W2891501724 cites W2090781688 @default.
• W2891501724 cites W2095681242 @default.
• W2891501724 cites W2095760544 @default.
• W2891501724 cites W2099138418 @default.
• W2891501724 cites W2102062459 @default.
• W2891501724 cites W2102690624 @default.
• W2891501724 cites W2104218361 @default.
• W2891501724 cites W2104830403 @default.
• W2891501724 cites W2105269167 @default.
• W2891501724 cites W2107692552 @default.
• W2891501724 cites W2108126573 @default.
• W2891501724 cites W2108597026 @default.
• W2891501724 cites W2111173087 @default.
• W2891501724 cites W2115888854 @default.
• W2891501724 cites W2119438235 @default.
• W2891501724 cites W2133674985 @default.
• W2891501724 cites W2138716902 @default.
• W2891501724 cites W2148423848 @default.
• W2891501724 cites W2156666418 @default.

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