二叠纪末期的全球淹没事件

THE LATE PERMIAN GLOBAL FLOODING EVENTS

摘要: 本文根据华南层序地层学分析,着重研究了晚二叠世的淹没事件。研究表明,晚二叠世海平面变化曲线不同于C.A.Ross和J.R.Ross(1987)的海平面变化曲线。根据华南地区和世界其它地区的古生物分析和层序地层分析,晚二叠世海平面变化结论如下:(1)二叠纪末期,全球发生海泛淹没事件,海平面急剧上升,而不是下降,(2)晚二叠世晚期的海进开始于吴家坪末期,至长兴期末期(二叠纪末期)达到高峰时期。
- 晚二叠世 /
- 淹没事件 /
- 海平面变化
Abstract: This paper examines the Late Permian flooding events on the basis of sequence strati-graphic analysis from South China.The late Permian sea-level curve is different from the sea-level curve drawn by C.A.Ross and J.R.Ross (1987).According to the Palaeonto-logical and sequence stratigraphic analysis from South China and other areas of the world, two conclusions about the Late Permian eustatic fluctuations are drawn in the following. (1)As the global marine flooding event took place during Permian-Triassic time,the sea level rose rapidly rather than its falling at the end of the Permian;(2)The late Late Permi-an transgression commenced during the latest Wujiapingian (late Late Permian),followed by the transgressive maximum during the latest Changxingian (Latest Permian).
- Late Permian /
- flooding event /
- sea-level change