Along the south and north flanks of the Wudang fault apparent changes are observed in the distribution and depositional characters of the Jiujialu, Xiangbai and Jiusi formations (Lower Carboniferous).

在贵阳乌当断层南北两侧，下石炭统九架炉组、祥摆组和旧司组的分布和沉积特征存在明显的变化。