Abstract:Division and correlation of the Cambrian-ofdovision strata below the Huaiyuan in-teruption of sedimentation in Shandong Province has been conducled by the authors. These strata are divided into two groups,seven formations and five members,i.e. 14formal stratigraphic units in total.The Liguan-,the Zhushadong-and the Mantou for-mations consist mainly of clastic rocks,and are thus named as the Changqing group;TheZhangxia-,Gushan-,Chaomidian and Sanshanzi formations consist mainly of carbon- ate rocks and are s...