| 二叠-三叠纪转折期放射虫动物群的变化 |
| |
| 引用本文： | 冯庆来,张振芳,顾松竹,叶玫.二叠-三叠纪转折期放射虫动物群的变化[J].地质科技情报,2001,20(3):31-34. |
| |
| 作者姓名： | 冯庆来 张振芳 顾松竹 叶玫 |
| |
| 作者单位： | 1. 中国地质大学地球科学学院
2. 中国地质大学 |
| |
| 基金项目： | 国家自然科学基金，49632070,49972002， |
| |
| 摘 要： | 综述了二叠 -三叠纪转折期放射虫动物群的研究进展 ,长兴阶晚期放射虫动物群 90 %以上的种在二叠纪末期灭绝 ,只有少数在浅海灰岩和远洋硅质岩中均能够发现的属种才成功残存到三叠纪 ;三叠纪放射虫的复苏和辐射经历了较长的过程 ,Griesbachian至 Smithian为放射虫残存期 ,Spathian 为放射虫的复苏期 ,Anisian是放射虫的辐射期。Anisian放射虫的辐射受到强缺氧事件的影响。
|
| 关 键 词： | 放射虫 长兴阶至安尼阶 演化 灭绝和复苏 缺氧事件 |
| 文章编号： | 1000-7849(2001)03-0031-04 |
| 修稿时间： | 2001年2月16日 |
RADIOLARIAN FAUNA FROM THE PERMIAN-TRIASSIC TRANSITION |
| |
| Feng Qinglai,Zhang Zhenfang,Gu Songzhu,Ye Mei.RADIOLARIAN FAUNA FROM THE PERMIAN-TRIASSIC TRANSITION[J].Geological Science and Technology Information,2001,20(3):31-34. |
| |
| Authors: | Feng Qinglai Zhang Zhenfang Gu Songzhu Ye Mei |
| |
| Institution: | Feng Qinglai 1 Zhang Zhenfang 2 Gu Songzhu 1 Ye Mei 1 |
| |
| Abstract: | The aim of this article is to present the recent research development about the radiolarian faunas during the Permian Triassic transition Over 90% of the late Changxingian radiolarian species disappeared at the end Permian and only a few species that could be found in both shallow limestones and pelagic cherts survived successfully into the Triassic The survival period spans Griesbachian to Smithian and the recovery period, Spathian, and Radiolaria began to radiate from Anisian stage The radiation of the Middle Triassic radiolarians was intensively controlled by anoxia event |
| |
| Keywords: | radiolaria Changxingian to Anisian faunal change extinction and recovery anoxia event |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
