porphyry copper deposits

• 斑岩铜矿

porphyry copper deposits的用法和样例：

例句

1. Dexing Copper Mine is an especially large porphyry copper mine in the world.
   德兴铜矿是世界级特大型斑岩铜矿。
2. In many porphyry copper deposits, additional enrichment of the metal has been caused by surficial weathering.
   在许多斑岩铜矿矿床中，地表风化使得金属铜进一步富集。