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作者根据宁芜盆地中生代火山岩具幔源成因,盆地东西两缘的茅山褶皱带和巢含褶皱带呈对称分布、相向倒转并逆冲于中新生代地层之上,以及区域深部结构特点等地质事实,提出了茅山推覆构造形成的盆缘对冲模式。同时认为,区域内壳下小尺度地幔对流及其所导引的裂谷型火山活动是造成这种盆缘对冲的基本原因。
According to the mantle origin of the Mesozoic volcanic rocks in the Ninghuo basin, the authors present a symmetrical distribution of the Maoshan fold belt and the fold-fold belt in the nest between the east and west edges of the basin, reversing and thrusting toward the Meso-Cenozoic strata, and geological features of the deep structural features of the area , Proposed the basin margin hedge pattern formed by the Maoshan nappe structure. At the same time, it is considered that the convection of small-scale mantle and the rifting-type volcanic activity guided by it are the basic reasons for this basin hedging.