而煌斑岩原始岩浆可能并不存在，煌斑岩是普遍类型的基性岩浆在源区或侵位过程中遭受地壳混染的衍生物；
Perhaps there are no lamprophyre magmas, and lamprophyres derive from common basic magmas which are contaminated by the crust in their source or the process of emplacement.
其早期破裂阶段以碱性的基性岩浆活动为特征，以大红山群、河口群中的火山岩为代表。
The early stage of crust rupture was characterized by alkaline mafic igneous activities in the Dahongshan Group and Hekou Group.
岩墙群的构造形态和流动构造表明鲁西基性岩墙群是基性岩浆侵位到先存的张性破裂中的产物，岩墙自北部向南部侵入。
The flow structures and geometry evidences of the dykes indicate that the magma source of these dykes intruded the pre-existing tensional rupture.
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