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中元古界团山子组由一套碳酸盐岩构成，发育若干类型的“环潮坪型碳酸盐米级旋回层序”，米级旋回层序的１∶４垂直叠加形式表明了旋回性地层记录的米兰柯维奇性质。根据米级旋回层序在长周期三级层序中的有规律叠加形式，在该组中识别出４个三级层序，它们构成一个二级超层序。依据三级层序的相序组构及时空变化特征，即可建立团山子组的地层格架。团山子组旋回层序特征表明，这套时限大致为１７００～１６５０Ｍａ的前寒武系，也存在类似于显生宙“温室效应”地史时期普遍发育的、与米兰柯维奇旋回有关的旋回性沉积记录。
The Mesoproterozoic Tethuzi Formation is composed of a suite of carbonate rocks, with several types of “tidal flat carbonate-scale cycles” developed. The 1: 4 vertical superposition of the Mi-cycle sequences indicates a cyclonic Sex Stratigraphic Record of Milan Covey Nature. According to the regular superposition of the Mi-level cycles in the long-period third-order sequences, four third-order sequences are identified in this group, which form a second-level super-sequence. According to the sequence structure and temporal-spatial variation of the third-order sequence, the stratigraphic framework of the Tuan-Shan sub-formation can be established. The Cyclones of the TuanShanzi Formation show that this set of Precambrian systems with a duration of approximately 1700 ~ 1650Ma also have similar cycles to the Milankovitch cycle, similar to the “Greenhouse Effect” of the Phanerozoic. recording.