Dissolution of orthopyroxene in basanitic magma between 0.4 and 2 GPa: further implications for the origin of Si-rich alkaline glass inclusions in mantle xenoliths
Article Abstract:
Equilibrium dissolution experiments between 0.4 and 2 GPa were conducted to determine the possibility that Si-Al-rich alkaline glass inclusions may have also originated from the dissolution of orthopyroxene in basanitic or Si-poor alkaline melt. Complex reaction zones consisting of olivine, clinopyroxene and Si-rich alkaline glass that have the same composition as that seen in mantle xenoliths were observed. Results also suggested that the formation of Si-rich alkaline glass pools by the orthopyroxene/melt reaction is a common process during the formation of xenoliths.
Publication Name: Contributions to Mineralogy and Petrology
Subject: Earth sciences
ISSN: 0010-7999
Year: 1999
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Mechanisms of orthopyroxene dissolution in silica-undersaturated melts at 1 atmosphere and implications for the origin of silica-rich glass in mantle xenoliths
Article Abstract:
A study investigated the structure of melts derived from the dissolution of orthopyroxene in three different alkali-rich silica-undersaturated melts. Findings revealed that a common composition of silicon oxide contents results from the combination of the boundary layer melts. Results indicated that certain silica-heavy melts may have been created through the dissolution of xenolith orthopyroxene at low pressure probably by their silica-undersaturated host magmas.
Publication Name: Contributions to Mineralogy and Petrology
Subject: Earth sciences
ISSN: 0010-7999
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
Mechanisms of orthopyroxene dissolution in silica-undersaturated melts at 1 atmosphere and implications for the origin of silica-rich glass in mantle xenoliths
Article Abstract:
A study investigated the structure of melts derived from the dissolution of orthopyroxene in three different alkali-rich silica-undersaturated melts. Findings revealed that a common composition of silicon oxide contents results from the combination of the boundary layer melts. Results indicated that certain silica-heavy melts may have been created through the dissolution of xenolith orthopyroxene at low pressure probably by their silica-undersaturated host magmas.
Publication Name: Contributions to Mineralogy and Petrology
Subject: Earth sciences
ISSN: 0010-7999
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
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