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• W2103295372 abstract "[1] Melting anomalies in the Earth's upper mantle have often been attributed to the presence of mantle plumes that may originate in the lower mantle, possibly from the core-mantle boundary. Globally, mantle plumes exhibit a large range in buoyancy flux that is proportional to their temperature and volume. Plumes with higher buoyancy fluxes should have higher temperatures and experience higher degrees of partial melting. This excess heat in mantle plumes could reflect either (1) an enrichment of the heat-producing elements (HPE: U, Th, K) in their mantle source leading to an increase of heat production by radioactive decay, (2) material transport from core to mantle (either advective or diffusive), or (3) conductive heat transport across the core-mantle boundary. The advective/diffusive transport of heat may result in a physical contribution of material from the core to the lower mantle. If core material is incorporated into the lower mantle, mantle plumes with a higher buoyancy flux should have higher core tracers, e.g., increased 186Os, 187Os, and Fe concentrations. Geophysical and dynamic modeling indicate that at least Afar, Easter, Hawaii, Louisville, and Samoa may all originate at the core-mantle boundary. These plumes encompass the whole range of known buoyancy fluxes from 0.9 Mg s−1 (Afar) to 8.7 Mg s−1 (Hawaii), providing evidence that the buoyancy flux is largely independent of other geophysical parameters. In an effort to explore whether the heat-producing elements are the cause of excess heat we looked for correlations between fractionation-corrected concentrations of the HPE and buoyancy flux. Our results suggest that there is no correlation between HPE concentrations and buoyancy flux (with and without an additional correction for variable degrees of partial melting). As anticipated, K, Th, and U are positively correlated with each other (e.g., Hawaii, Iceland, and Galapagos have significantly lower concentrations than, e.g., Tristan da Cunha, the Canary Islands, and the Azores). We also find no correlation between Fe and buoyancy flux. The apparent lack of correlations suggests that excess heat may be a result of conductive heat contribution from the core or from the adjacent boundary layer. Thus, the formation of mantle plumes along the core-mantle boundary may be largely controlled by distance of enriched material from the core-mantle boundary." @default.
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• W2103295372 date "2008-06-01" @default.
• W2103295372 modified "2023-09-26" @default.
• W2103295372 title "Heat sources for mantle plumes" @default.
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• W2103295372 cites W1594412726 @default.
• W2103295372 cites W1656874552 @default.
• W2103295372 cites W1681073458 @default.
• W2103295372 cites W1914890451 @default.
• W2103295372 cites W1968426779 @default.
• W2103295372 cites W1969859799 @default.
• W2103295372 cites W1977202349 @default.
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• W2103295372 cites W1988224659 @default.
• W2103295372 cites W1994010532 @default.
• W2103295372 cites W1997588990 @default.
• W2103295372 cites W1997652165 @default.
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• W2103295372 cites W2003954508 @default.
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• W2103295372 cites W2009107964 @default.
• W2103295372 cites W2011497196 @default.
• W2103295372 cites W2015927751 @default.
• W2103295372 cites W2016690871 @default.
• W2103295372 cites W2017043022 @default.
• W2103295372 cites W2024219013 @default.
• W2103295372 cites W2026147422 @default.
• W2103295372 cites W2026780523 @default.
• W2103295372 cites W2027862110 @default.
• W2103295372 cites W2037340163 @default.
• W2103295372 cites W2037624729 @default.
• W2103295372 cites W2038711102 @default.
• W2103295372 cites W2042423268 @default.
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• W2103295372 cites W2063948740 @default.
• W2103295372 cites W2067123129 @default.
• W2103295372 cites W2067183899 @default.
• W2103295372 cites W2069302116 @default.
• W2103295372 cites W2078206071 @default.
• W2103295372 cites W2078417878 @default.
• W2103295372 cites W2079552810 @default.
• W2103295372 cites W2081656000 @default.
• W2103295372 cites W2081839958 @default.
• W2103295372 cites W2082384972 @default.
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• W2103295372 doi "https://doi.org/10.1029/2007gc001933" @default.
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