Experimental study of clinopyroxenite partial melting and the origin of ultra-calcic melt inclusions

Experimental study of clinopyroxenite partial melting and the origin of ultra-calcic melt inclusions

Ultra-calcic melt inclusions (UCMI: CaO > 13.5 wt% and/or CaO/Al2O3 > 0.9) are magnesian and near-primary liquids trapped in volcanic phenocrysts from mid-ocean ridges, arcs, back-arcs, and ocean islands. UCMI can be subdivided into two classes based on tectonic association and degree of silic...

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Bibliographic Details
Published in:Contributions to mineralogy and petrology Vol. 142; no. 3; pp. 347 - 360
Main Authors: Kogiso, Tetsu, Hirschmann, Marc M.
Format: Journal Article
Language:English
Published: Heidelberg Springer Nature B.V 01-12-2001
Subjects:
Mineralogy
Petrology
Plate tectonics
Silica
Volcanoes
Online Access:Get full text
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Description
Summary:Ultra-calcic melt inclusions (UCMI: CaO > 13.5 wt% and/or CaO/Al2O3 > 0.9) are magnesian and near-primary liquids trapped in volcanic phenocrysts from mid-ocean ridges, arcs, back-arcs, and ocean islands. UCMI can be subdivided into two classes based on tectonic association and degree of silica saturation: those from arcs are nepheline normative and those from all other localities (silicic UCMI) are hypersthene normative.
ISSN:0010-7999
1432-0967
DOI:10.1007/s004100100295