High-pressure Partial Melting of Mafic Lithologies in the Mantle
نویسندگان
چکیده
منابع مشابه
Experimental evidence supports mantle partial melting in the asthenosphere
The low-velocity zone (LVZ) is a persistent seismic feature in a broad range of geological contexts. It coincides in depth with the asthenosphere, a mantle region of lowered viscosity that may be essential to enabling plate motions. The LVZ has been proposed to originate from either partial melting or a change in the rheological properties of solid mantle minerals. The two scenarios imply drast...
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15 صفحه اولPartial melting and melt segregation in a convecting mantle
Various causes for mantle melting (decompression, heating or release of water) combined with current estimates of upper mantle temperatures and the state of stress in the lithosphere suggest that in many regions the asthenosphere might be partially molten, but melts may not always be able to rise to the surface. The governing equations describing melting, melt segregation, compaction and deplet...
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ژورنال
عنوان ژورنال: Journal of Petrology
سال: 2004
ISSN: 1460-2415
DOI: 10.1093/petrology/egh057