| 藏南定日县贡扎上白垩统浮游有孔虫生物地层新资料 |
| |
| 引用本文： | 石和,李国忠,赵鹏肖,李祥辉,赵兵. 藏南定日县贡扎上白垩统浮游有孔虫生物地层新资料[J]. 成都理工大学学报(自然科学版), 2006, 33(2): 134-140 |
| |
| 作者姓名： | 石和 李国忠 赵鹏肖 李祥辉 赵兵 |
| |
| 作者单位： | 1. 成都理工大学沉积地质研究院,成都,610059
2. 郑州工业贸易学校,郑州,450007 |
| |
| 摘 要： | 报道了西藏南部定日的上白垩统浮游有孔虫生物地层新资料,在厚291 m的贡扎剖面中共采集了699个有孔虫样品,平均的样品间距约40 cm,每两个样品间的间距代表约50 000a的时间间隔.根据获得的有孔虫化石及其在地层中的分布,识别出和建立了剖面的12个浮游有孔虫化石带,较为准确地确定了相邻化石带的界线,在此基础上对剖面进行了年代地层的划分.
|
| 关 键 词： | 浮游有孔虫 上白垩统 化石带 年代地层 贡扎 西藏 西藏南部 定日 上白垩统 浮游有孔虫 生物地层 新资料 Upper Cretaceous foraminifera materials Tibet 划分 年代地层 化石带 识别 分布 时间间隔 代表 间距 样品 共采 |
| 文章编号： | 1671-9727（2006）02-0134-07 |
| 收稿时间： | 2005-06-15 |
| 修稿时间： | 2005-06-15 |
New biostratigraphic materials of planktic foraminifera of the Upper Cretaceous from Gongza, Dingri, southern Tibet, China |
| |
| SHI He,LI Guo-zhong,ZHAO Peng-xiao,LI Xiang-hui,ZHAO Bing. New biostratigraphic materials of planktic foraminifera of the Upper Cretaceous from Gongza, Dingri, southern Tibet, China[J]. Journal of Chengdu University of Technology: Sci & Technol Ed, 2006, 33(2): 134-140 |
| |
| Authors: | SHI He LI Guo-zhong ZHAO Peng-xiao LI Xiang-hui ZHAO Bing |
| |
| Abstract: | Some new planktic foraminifera materials of the Upper Cretaceous on Dingri, sou Tibet are provided in this paper. 699 samples were collected systematically from Gongza section, thickness of 291 m. An average space is about 40 cm between two samples, implying an average duration of about 0.05 Ma. According to their distribution of the planktic foraminifera fossils obt from this section, 12 planktic foraminifera fossil zones are distinguished, their boundaries are de accurately on this section. On this basis, the boundaries of the chronostratigraphic units on section are discussed. |
| |
| Keywords: | planktic foraminifera fossil zones chronostraligraphy Upper Cretaceous Gongza Tibet |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
