magmatic activity的用法和样例：
例句
- The formation of the geothermal area has related with structure magma activity and depths structure variation since the Mesozoic-Cenozoic Era.
易家河地热区的形成主要与中新生代以来深层构造变异带的构造岩浆活动有关。 - The yankees closed shells and instructions of qinghai-tibet plateau uplift period intracontinental orogenic movement of magmatic activity.
指示洋壳闭合后，青藏高原隆升期的陆内造山运动中的岩浆活动。
