Pengxian copper deposit is hosted by metamorphosed pyroclastic rock and basicintermediate lava. This paper deals with minor element and REE geochemistry and genesis of the host rock.

• 彭县铜矿床含矿火山岩由各类变质火山碎屑岩及中基性熔岩所组成。本文探讨了各类含矿火山岩微量元素及稀土元素地球化学特征，并初步揭示了合矿火山岩的成因。