Lower Jurassic

• 早侏罗世

Lower Jurassic的用法和样例：

例句

1. The strong balloon swelling is dominant and tectonic extension is subordinate during the emplacement mechanism of early Jurassic alkali granite.
   早侏罗世碱性花岗岩体岩浆就位过程中以强力的气球膨胀作用为主，构造扩展机制为辅。