CAJ | 학술논문

通过浙江湖州黄芝山剖面的研究,发现其长兴组顶部存在清晰古风化壳残积物,本文描述了该古风化壳的沉积特征.精细的牙形石古生物地层学研究表明,该古风化壳代表的平行不整合面位于Clarkina meishanensis meishanensis带的底部,其层位相当于浙江煤山D剖面的25层底部,与二叠纪末生物集群灭绝主灭绝期层位基本一致.所以深入研究该古风化壳对探讨二叠纪末海平面变化和生物集群灭绝具有重要意义.
통과절강호주황지산부면적연구,발현기장흥조정부존재청석고풍화각잔적물,본문묘술료해고풍화각적침적특정.정세적아형석고생물지층학연구표명,해고풍화각대표적평행불정합면위우Clarkina meishanensis meishanensis대적저부,기층위상당우절강매산D부면적25층저부,여이첩기말생물집군멸절주멸절기층위기본일치.소이심입연구해고풍화각대탐토이첩기말해평면변화화생물집군멸절구유중요의의.
Well-preserved weathering crust is discovered at the top of the Changxing Formation in Huangzhishan section? Huzhou? Zhejiang. The characteristics of the weathering crust are described in this paper. The unconformity represented by the weathering crust is located at the lowermost part of Clarkina meishanensis meishanensis Zone. In stratigraphic horizon, it can be correlated with the bottom of the Bed 25 at the Meishan Section D and is coincident with the main episode of the mass extinction at the end-Permian. Therefore, it is very significative for discussing the sea-level change and the causes of the mass extinction at the end-Permian to study the weathering crust in detail.