The Ar-40/Ar-39 dating of the early Jehol Biota from Fengning, Hebei Province, northern China
文献类型：期刊论文
| 作者 | He, HY; Wang, XL; Jin, F; Zhou, ZH ; Wang, F; Yang, LK; Ding, X; Boven, A; Zhu, RX; huaiyuhe@mail.igcas.ac.cn
|
| 刊名 | GEOCHEM GEOPHY GEOSY
 |
| 出版日期 | 2006 |
| 卷号 | 7期号:4页码:1-8 |
| 关键词 | Early Evolution Cretaceous Age Dinosaur Yixian Origin Birds |
| ISSN号 | 1525-2027 |
| 英文摘要 | The bird fossil-bearing deposits at the Jiecaigou section, correlative to the Dabeigou Formation, in Fengning, Hebei Province, northern China, is well known for yielding a fossil assemblage representing the earliest evolutionary stage of the Jehol Biota. The precise age of the fossil-bearing deposits, however, is unknown. The Ar-40/Ar-39 age spectrum obtained on bulk K-feldspars from the tuff layer about 2 m below the bird fossil-bearing layer gave a plateau age of 129.0 +/- 1.3 Ma (2 sigma, full external error) and an isochron age of 132.3 +/- 4.5 Ma (2 sigma, full external error). Seventeen total-fusion Ar-40/Ar-39 ages on K-feldspars from the interbedded tuff about 6 m below the fossil-bearing layer resulted in a weighted mean of 130.7 +/- 1.4 Ma (2 sigma, full external error). These dates suggest an age of similar to 131 Ma for the early Jehol Biota and combined with previous dating indicate that this biota lasted at least from 131 Ma to 120 Ma (Late Hauterivian to Aptian). These dates also represent the earliest absolute age for known enantiornithine birds in the world. |
| URL标识 | 查看原文 |
| 公开日期 | 2013-11-27 |
| 源URL | [http://119.78.100.205/handle/311034/5004]  |
| 专题 | 古脊椎动物与古人类研究所_古低等脊椎动物研究室 |
| 通讯作者 | huaiyuhe@mail.igcas.ac.cn |
| 推荐引用方式 GB/T 7714 | He, HY,Wang, XL,Jin, F,et al. The Ar-40/Ar-39 dating of the early Jehol Biota from Fengning, Hebei Province, northern China[J]. GEOCHEM GEOPHY GEOSY,2006,7(4):1-8. |
| APA | He, HY.,Wang, XL.,Jin, F.,Zhou, ZH.,Wang, F.,...&huaiyuhe@mail.igcas.ac.cn.(2006).The Ar-40/Ar-39 dating of the early Jehol Biota from Fengning, Hebei Province, northern China.GEOCHEM GEOPHY GEOSY,7(4),1-8. |
| MLA | He, HY,et al."The Ar-40/Ar-39 dating of the early Jehol Biota from Fengning, Hebei Province, northern China".GEOCHEM GEOPHY GEOSY 7.4(2006):1-8. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。