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近年,在大兴安岭柴河地区开展1∶5万区调时发现了碎斑熔岩体.区内发育晚侏罗世满克头鄂博组(J3m)、玛尼吐组(J3mn)及白音高老组(J3b)火山岩,广泛分布在二十四道沟、敖尼尔-四道沟及柴河-固里河3个火山喷发盆地中.所发现的固里河、敖尼尔两个碎斑熔岩体,即是白音高老期火山活动晚期侵出的重要组成部分.固里河碎斑熔岩体呈一北东向延伸的椭圆形穹状岩体,可划分出内部相(似斑状)、过渡相(霏细质)和边缘相(玻质)3个相带,主要由流纹质碎斑熔岩构成;敖尼尔碎斑熔岩主体呈近东西向,平面上呈似蘑菇状,可划分出2～3个相带,其岩石类型基本同固里河碎斑熔岩体.它们的发现,对研究大兴安岭地区火山岩的形成、演化及指导找矿等具有重要意义.
In recent years, crustal lava bodies were found in the region of Chaihe, Daxinganling, with a range of 1: 500 000. Late Jurassic Mankesou Obo Formation (J3m), Manitou Group (J3mn) J3b) volcanic rocks are widely distributed in three volcanic eruption basins such as Twenty-four Dao, Ao Neier-Sidou ditch and Chaihe-Gu Lihe.The two rifted magmatic rocks, , Which is an important component of the late Baiyao period volcanic activity invasion.Guliehe crustal lava body is a north-east extending oval dome rock body, can be divided into the internal phase (like spot), the transition The facies (feldspathies) and marginal facies (vitrinites) consist of three facies belts, which are mainly composed of rhyolitic plagioclase lavas. The main body of the Ao Neier plagioclase lavas is near east-west and mushroom-like in plane, 2 ~ 3 facies belts, and their rock types are basically the same as that of the Gu Lihe crushed lava body.These findings are of great significance for studying the formation, evolution and prospecting of volcanic rocks in the Greater Xing’an Mountains.