source zone的用法和样例：
例句
- Their source was like an asthenospheric mantle of ocean-island basalt and geosphere was also involved in the magma rising and eructating process.
其源区可能是源于一种似洋岛玄武岩源的软流圈地幔源，并且在岩浆上侵喷发过程发生了岩石圈的卷入。 - Geochemical studies show that magma of these two series originated from the same impoverished mantle source, with the source rock being spinel peridotite.
地球化学研究证明，这两个系列的岩浆起源于同一贫化型地幔源区，源岩类型为尖晶石橄榄岩。
