partial melting of upper mantle 上地幔部分熔融
Leucite tephrite was derived from the more enriched mantle source with lower degree of partial melting of mantle source than alkaline olivine basalt.
相对于碱性橄榄玄武岩，白榴石碱玄岩来自于更加富集的地幔源区，其地幔的部分熔融程度相对较低。
Low REE group and high REE group lamprophyres are 10% and 4% partial melting of the metasomatic enriched mantle.
低ree组和高ree组煌斑岩分别是交代富集地幔约10%和4%部分熔融的产物。
The sapphire-bearing basalts contain abundant iherzolit es that belong to the remnants of the upper mantle left after the removal of basaltic melts from partial melting of the upper mantle.
含蓝宝石的玄武岩中含有大量的二辉橄榄岩，该种岩石是上地幔部分熔融出玄武岩熔体后的上地幔残留物。
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