Magnetic fabric evidences for the Late Paleoproterozoic mafic dyke swarm emplacement, southern margin of the North China craton
华北南缘古元古代末岩墙群侵位的磁组构证据

In the time-space and geochemistry, the radiating Proterozoic mafic dyke swarms in the Mt. Zhongtiao are related to the mafic dyke swarms in the Mt. Wutai-Hengshan, and both of the mafic dyke swarms are related to the Xiong'er volcanic rocks in the Xiong'er-Zhongtiao aulacogen. The macro and micro flow structures (including xenolithes, scours, mineral lineations and orientation of phenocrystals) in the radiating mafic dyke swarms of the Mt. Zhongtiao indicate that the mafic dyke swarm emplaced from SE to NW at an angle. Based on measurement of the anisotropy of magnetic susceptibility (AMS), the dominant orientations of the maximum magnetic susceptilbility and analysis of susceptibility characteristics also indicate that the mafic dyke swarm emplaced from SE to NW from the bottom of the Xiong'er-Zhongtiao aulacogen, and further support that the Late Paleoproterozoic mafic dyke swarms in the North China craton are much related to the Xiong'er-Zhongtiao aulacogen.