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引言煌斑岩是一种脈状侵入岩。1936年克諾勃夫比較簡括地总結了煌斑岩的定义:“煌斑岩系一种相当於正长岩和閃长岩的深色脈岩,具有粒状或斑状結构。倘若是斑状結构,則斑晶几乎全部是由深色矿物組成,而长石祇見之於石基中”。事实上,此定义尚不够全面,因为除去最常見的相当於正长岩和閃长岩的煌斑岩外,还发現一些相当於辉长岩和鹼性岩的煌斑岩。煌斑岩和主要侵入体往往在矿物成分与化学成分上
Introduction The lamprophyre is a vein-invasive rock. In 1936 Knopf summed up the definition of the lamprophyre more succinctly: “The lamprophyre is a dark veined rock that is equivalent to syenite and diorite, with granular or macular structures. In the case of plaques , Then almost all the macular crystals are composed of dark minerals, and feldspar seen in the stone base. ” In fact, this definition is not comprehensive enough, except that some of the lamprophyres, equivalent to gabbro and alkaline rocks, are found in addition to the most common lamprophyres, which are equivalent to syenite and diorite. Lamprophyre and major intrusions are often found in mineral and chemical components