The magma source is beleived to be located in the Yanliao aulacogen of the craton.The magma flowed upward at a certain angle along the trend of the dykes from ESE(or E)to NW-NNW (or W).

• 该区的岩墙群的岩浆源位于东侧的燕辽拗拉槽处,岩浆沿岩墙走向以一定仰角由ESE(或E)朝NW-NNW(或W)向流动,具板内裂谷模式。