显生宙一级层序的银河年旋回响应：重要的进展与争论

张英杰, 王龙

Response of First-Order Sequence to the Galactic Year Cycle in the Phanerozoic:An Important Progress and Topic

Yingjie Zhang, Long Wang

图2 发生在显生宙期间的多个旋回性超事件（据参考文献[33,34,35,36,37]修改） (a)地磁正极性所占百分比；(b)大气圈O2浓度；(c)CO2浓度；(d)北美火山活动曲线；A:方解石海；B:文石海；C:尚不确定

Fig. 2 Several cyclic superevents occurring in the Phanerozoic (modified after references [33~37]) (a)Percentage of positive geomagnetic polarity; (b)Atmosphere O2 concentration; (c)CO2 partial pressure; (d)North American volcanic activity curve. A:Calcite sea；B:Aragonite sea；C:Unknown