olivine basalt

基本解釋

The rocks of the up member are andesite, basalt-andesite and olivine basalt.
上段主要為安山巖、玄武安山巖和橄欖玄武巖。
Leucite tephrite was derived from the more enriched mantle source with lower degree of partial melting of mantle source than alkaline olivine basalt.
相對(duì)于堿性橄欖玄武巖，白榴石堿玄巖來自于更加富集的地幔源區(qū)，其地幔的部分熔融程度相對(duì)較低。
Abundant mantle-derived xenocrysts such as olivine, orthopyroxene and clinopyroxene can be found in the basalt.
該玄武巖中含有豐富的幔源橄欖石、斜方輝石和單斜輝石捕擄晶。
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