| 释义 |
Basalt-andesite
基本例句
玄武安山岩¹⁰⁰
In the middle Early Jurassic the basin was filled up by the flood and eruptive basaltic andesite of the Nandaling Formation.早侏罗世中期,盆地被溢流和喷发的南大岭组玄武安山岩充填。
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.变质火山岩的原岩为大洋拉张环境下形成的以低钾拉斑玄武岩为主，低钾玄武安山岩次之的火山-次火山岩系，其物源为亏损地幔。 |