The copper is disseminated in small joint surfaces and cracks in the porphyries. 铜浸染在斑岩的细小节理面和裂隙中。
The following definitions apply to any planar surface, e.g. bedding, fault, joint or cleavage planes, veins or mineral deposits. 以下诸定义适用于任何平面，如层面，断层面，节理面或劈理面，岩脉或矿床。
