Magmatic water content in HIMU basalts from the Cook-Austral Islands: constraints on degassing processes and source composition from clinopyroxene phenocrysts

The amount of water recycled during subduction is unclear. Water/Ce estimates in HIMU (high- 238 U/ 204 Pb) basalts are variable, ranging from 250 in glasses and melt inclusions. Because clinopyroxene (cpx) is a common early liquidus phase and the cpx/melt partitioning of water is well constrained,...

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Veröffentlicht in:	Contributions to mineralogy and petrology 2024-09, Vol.179 (9), p.83, Article 83
Hauptverfasser:	Bruce-Etzel, Leslie A., Marshall, Edward W., Lassiter, John C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Basalt Carbon dioxide Constraints Crystallization Degassing Earth and Environmental Science Earth Sciences Entrapment Fluids Geology Inclusions Islands Lava Lead isotopes Liquidus Magma Magmatic water Melts Mineral Resources Mineralogy Moisture content Olivine Original Paper Pressure Sparging Subduction Trace elements Transition zone Water Water budget Water content Water loss Water resources Water reuse
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