Basalt-andesite

基本解釋

Parental magmas are somilar, in composition, to that of high-Al basalt and( or) basaltic andesite.
原始巖漿的成分類似於高鋁玄武巖和()武質(zhì)安山巖。
Cretaceous volcanic rocks outcropped in the central part of Livingston Island consist of a basalt basaltic andesite andesite dacite association principally belonging to calc alkaline series and characters of low potassium and low Mg.
出露在利文斯頓島中部的白堊紀火山巖爲玄武巖－武安山巖－山巖－安巖組郃，基本屬於鈣堿性系列，但具有低鉀拉斑玄武巖的某些特點。
In the middle Early Jurassic the basin was filled up by the flood and eruptive basaltic andesite of the Nandaling Formation.
早侏羅世中期,盆地被溢流和噴發(fā)的南大嶺組玄武安山巖充填。
The protolith of the metavolcanic rocks is a volcanic-subvolcanic rock series composed chiefly of low-K tholeiite with subordinate low-K basaltic andesite formed in an oceanic extensional environment.
變質(zhì)火山巖的原巖爲大洋拉張環(huán)境下形成的以低鉀拉斑玄武巖爲主，低鉀玄武安山巖次之的火山-次火山巖系，其物源爲虧損地幔。
The pyroclastic rock fragments comprise quartzite, schist, gneiss, basalt, andesite, rhyolite and quartz.
火成巖的碎塊成分主要爲石英巖、巖、麻巖、武巖、山巖和流紋巖.