| 沉积物的ESR测年 |
| |
| 引用本文： | 业渝光,刁少波,和杰,高钧成.沉积物的ESR测年[J].地球学报,1996,17(Z1):168-175. |
| |
| 作者姓名： | 业渝光 刁少波 和杰 高钧成 |
| |
| 作者单位： | 地质矿产部海洋地质研究所，青岛;地质矿产部海洋地质研究所，青岛;地质矿产部海洋地质研究所，青岛;中国计量科学研究院，北京 |
| |
| 基金项目： | 国家自然科学基金（49173177项）和地质行业科学技术发展基金（90053项）联合资助项目 |
| |
| 摘 要： | 对沉积物中石英ESR测年的特性进行了较为详细地研究，可用沉积物中石英的Ge心信号进行ESR测年；根据石英E心饱和功率较小这一特性，采用较大的微波功率可以测得较老海洋沉积物（大于0.5Ma）的ESR年龄；石英E心的异常较照剂量响应是判断海岸风成沙环境的一个标志。此外，还介绍了沉积物ESR测年在地质上的应用。
|
| 关 键 词： | 沉积物 石英Ge心 ESR测年 |
ESR Dating of the Sediments |
| |
| Ye Yuguang,Diao Shaobo,He Jie and Gao Juncheng.ESR Dating of the Sediments[J].Acta Geoscientia Sinica,1996,17(Z1):168-175. |
| |
| Authors: | Ye Yuguang Diao Shaobo He Jie and Gao Juncheng |
| |
| Institution: | Institute of Marine Geology, MGMR, Qingdao, Shandong;Institute of Marine Geology, MGMR, Qingdao, Shandong;Institute of Marine Geology, MGMR, Qingdao, Shandong;National Institute of Metrology, Beijing |
| |
| Abstract: | The characteristics of ESR dating of quartz in sediments were researched in more detaie, the signals of Ge centres of quartz in sediments can be used for ESR dating. Based on the characteristic that the saturation power of E centers in quartz is smaller, the ESR ages of older marine sediments (more than 500ka) can be obtained by using a higher microwave power. The abnomality of E centers of quartz can be used as an indicator to distinguish the environment of coastal eolian sand. In addition, some geological applica-tions of ESR dating of the sediments were introduced. |
| |
| Keywords: | sediments Ge centres of quartz ESR dating |
|
| 点击此处可从《地球学报》浏览原始摘要信息 |
| 点击此处可从《地球学报》下载免费的PDF全文 |
|
