The Gaoyuzhuang Formation of Mesoproterozoic at Jixian section in Tianjin Municipality is a set of about 1600 m thick carbonates strata and includes four members.

• 摘要天津蓟县剖面中元古界的高于庄组为一套厚度约1600m的碳酸盐岩地层，包括4个段：第1段以潮坪相叠层石白云岩为主；