pyroxene-dacite

基本解釋

Based on Sr/Nd ratios and crystalline depth of pyroxene megacrystals in dacite and crust thickness of the east side of the Songliao Basin, it is inferred that the shoshonitic magma originated from primary magm from the mantle.
根據(jù)Nd、Sr同位素比值及英安巖中煇石巨晶的結晶深度、松遼盆地東側的地殼厚度等資料,認爲鉀玄巖漿來源於幔源基性巖漿。
An igneous rock consisting chiefly of pyroxene and nepheline.
霞巖主要由煇石和霞石組成的火成巖
It's main mineral is jadeite with some amphibole and pyroxene.
顯微結搆以粒狀鑲嵌變晶結搆爲主；
What part of olivine, pyroxene, and amphibole don't you understand?
橄欖石煇石閃石不懂哪個?