The rocks of the up member are andesite, basalt-andesite and olivine basalt.
上段主要为安山岩、玄武安山岩和橄榄玄武岩。
According to the main rock-forming minerals in them, the Cenozoic volcanic rocks are mainly alkali olivine basalt, basanite and nephelinite.
郯庐断裂带中段的新生代火山岩以碱性系列的碱性橄榄玄武岩、碧玄岩和霞石岩为主，其中又以钠质亚系的岩石为主。
The rock types include amygdaloidal basalt, dolerite, massive basalt, olivine basalt and andesite-basalt, which belong to the alkali basalt series.
岩石类型包括杏仁状玄武岩、粗玄岩、块状玄武岩、橄榄玄武岩和安山玄武岩，属碱性玄武岩系列。
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。
The volcanic rocks in the study area all belong to sub alkaline series including olivine basalt, andesite and dacite, from basic to intermediate, and to acid.
研究区内火山岩从基性—中性—中酸性都有出露，包括橄榄玄武岩、安山岩和英安岩，且都属于非碱性系列。
The microscopic observation and homogenization temperature determination experiment of melt inclusions in plagioclase and olivine in basalt phenocrysts from the Mariana Trough were made.
对马里·亚纳海槽玄武岩斜长石和橄榄石斑晶中的熔融包裹体进行了镜下观察和均一化测温实验。
The microscopic observation and homogenization temperature determination experiment of melt inclusions in plagioclase and olivine in basalt phenocrysts from the Mariana Trough were made.
对马里·亚纳海槽玄武岩斜长石和橄榄石斑晶中的熔融包裹体进行了镜下观察和均一化测温实验。
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