| ESR and U-series ages of coral reef samples from shallow drill holes in the South China Sea |
| |
| 作者姓名： | Ye Yuguang Gao Juncheng He jie Diao Shaobo Liu Xinbo Du Yajing |
| |
| 作者单位： | Institute of Marine Geology, Ministry of Geology and Mineral Resources, Qingdao, 266071, China;National Institute of Metrology, Beijing, 100013, China;Institute of Marine Geology, Ministry of Geology and Mineral Resources, Qingdao, 266071, China;Institute of Marine Geology, Ministry of Geology and Mineral Resources, Qingdao, 266071, China;Institute of Marine Geology, Ministry of Geology and Mineral Resources, Qingdao, 266071, China;National Institute of Metrology, Beijing, 100013, China |
| |
| 摘 要： | The ages of coral reef samples from several shallow drill holes in the South China Sea are determined by ESR and U-series (230Th/234U) methods. The experimental results show ideal agreement between ESR and U-series ages and that the coral reefs were formed in the early Holocene. In the determination of natural total dose of coral reef by use of the additive dose method good results can be obtained by exponential fitting, no matter how the effect of dose saturation is. It was found that the ratio of the natural ESR signal intensity ( I0) to the ESR signal intensity at dose saturation ( Imax) of sample can reflect the significance of a irradiation efficiency-k value. Using the k value of sample determined by the formula given in this paper, the precision of ESR dating of marine carbonates can be improved.
|
| 收稿时间： | 1990/9/22 0:00:00 |
| 修稿时间： | 1990/10/27 0:00:00 |
ESR and U-series ages of coral reef samples from shallow drill holes in the South China Sea |
| |
| Ye Yuguang,Gao Juncheng,He jie,Diao Shaobo,Liu Xinbo,Du Yajing.ESR and U-series ages of coral reef samples from shallow drill holes in the South China Sea[J].Acta Oceanologica Sinica,1991,10(3):423-431. |
| |
| Authors: | Ye Yuguang Gao Juncheng He jie Diao Shaobo Liu Xinbo and Du Yajing |
| |
| Institution: | 1.Institute of Marine Geology, Ministry of Geology and Mineral Resources, Qingdao, 266071, China2.National Institute of Metrology, Beijing, 100013, China |
| |
| Abstract: | The ages of coral reef samples from several shallow drill holes in the South China Sea are determined by ESR and U-series (230Th/234U) methods. The experimental results show ideal agreement between ESR and U-series ages and that the coral reefs were formed in the early Holocene. In the determination of natural total dose of coral reef by use of the additive dose method good results can be obtained by exponential fitting, no matter how the effect of dose saturation is. It was found that the ratio of the natural ESR signal intensity (I0) to the ESR signal intensity at dose saturation (Imax) of sample can reflect the significance of a irradiation efficiency-k value. Using the k value of sample determined by the formula given in this paper, the precision of ESR dating of marine carbonates can be improved. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《海洋学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《海洋学报(英文版)》下载免费的PDF全文 |
|
