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塔里木盆地二叠纪大火成岩省岩浆作用是盆地演化历史当中一次非常重要的构造热事件。大火成岩省的组成单元主要包括隐爆角砾云母橄辉岩岩筒及辉橄岩、辉石岩、辉长岩、玄武岩、辉绿岩、碱性正长岩和正长斑岩岩墙等,其中以玄武岩和辉绿岩最为发育。大火成岩省的岩石单元分布在满加尔坳陷西段和塔北隆起西段,塔中隆起、巴楚隆起以及塔西南坳陷,几乎涵盖半个塔里木盆地,面积约20×104km2,并有7个残余分布的厚度中心。大火成岩省发育具有如下的时间序列:瓦吉里塔格地区的层状岩体→隐爆角砾云母橄辉岩岩筒→库普库兹曼组玄武岩(278×106～292×106a)→开派兹雷克组玄武岩(272×106～288×106a)→辉绿岩脉、超基性岩脉→正长岩(包括石英正长斑岩岩脉)(277×106a)。
The Permian large igneous province in the Tarim Basin is an important tectonic thermal event in the basin evolution history. The components of the large igneous province include the cryptograde breccia mica olivine rock tube and gneiss, pyroxene rock, gabbro, basalt, diabase, alkaline syenite and positive long porphyry rock wall, Among them, basalt and diabase are the most developed. The rock units of the large igneous provinces are located in the western part of Manjiaer Depression and the western part of Tabei uplift, the Tazhong uplift, the Bachu uplift and the southwestern Tarim basin, covering almost half of the Tarim Basin with an area of about 20 × 104 km2 and 7 A residual distribution of the thickness of the center. The development of large igneous provinces has the following time series: layered rock mass in the Wajiritag region → cryptograde breccia mica olivine rock cylinder → Kupu-Kuzman Formation basalts (278 × 106 ~ 292 × 106a) → open The Pazilek Formation basalts (272 × 106 ~ 288 × 106a) → diabase dikes, ultrabasic veins → syenite (including quartz-bearing porphyry dikes) (277 × 106a).