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华北陆块南缘（河南段）出露的富碱侵入岩类集中分布于卢氏－确山一线。岩石类型主要分为三大类：①碱性岩类，即含有似长石或碱性暗色矿物的正长岩类；②碱性花岗岩类，包括钠铁闪石花岗岩以及孪生的钾长花岗岩类；③石英正长岩类，包括碱性长石为主的石英正长岩、英碱正长岩和花岗正长（斑）岩类。在空间上构成一条富碱岩浆岩带，据岩石组合自北而南划为三个亚带：北部碱性岩亚带、中部碱性花岗岩类亚带和南部石英正长（斑）岩亚带。在形成时间上富碱岩浆活动集中于晚元古代末期（７００Ｍａ±）和海西晚期（３００Ｍａ±）。
The alkali-rich intrusive rocks exposed in the southern margin of the North China block (Henan section) are concentrated in the Lushi - indeed mountain line. The rock types are mainly divided into three categories: (1) Alkaline rocks, ie, syenite, which contains feldspathic or alkaline dark mineral; (2) alkaline granites, including sodium-iron-amphibole granites and twin k- ; ③ quartz syenite, including the basic feldspar-based quartz syenite, Alkali-alkali syenite and granite is positive (spot) rock. It is composed of an alkaline-alkali magmatic belt in the north and a positive quartz (plagioclase) sub-zone in the south . Al-rich magmatic activity concentrated on the late Proterozoic (700Ma ±) and late Hercynian (300Ma ±) during the formation time.