|
|||||
|
|
| 水成沉积物回授光释光测年可行性初探 | |
| 引用本文： | 纪洪磊,赵华,王成敏,毛洪亮,卢演俦.水成沉积物回授光释光测年可行性初探[J].地震地质,2010,32(2):320. |
| 作者姓名： | 纪洪磊 赵华 王成敏 毛洪亮 卢演俦 |
| 作者单位： | 1. 中国地质科学院水文地质环境地质研究所,石家庄,050061 2. 中国地质科学院水文地质环境地质研究所,石家庄,050061;中国地震局地质研究所,地震动力学国家重点实验室,北京,100029 3. 中国地震局地质研究所,地震动力学国家重点实验室,北京,100029 |
| 基金项目： | 中国地质科学院水文地质环境地质研究所基本科研业务费项目 |
| 摘 要： | 通过对滹沱河冲洪积物、阳原盆地湖相地层细颗粒石英天然热转移光释光(TT-OSL)信号测量、回授剂量恢复测试以及简单多片光释光(OSL)与回授光释光(Re-OSL)测量结果对比等,探讨了细颗粒石英回授光释光在水成沉积物测年中应用的可能性。结果表明,冲积样品回授光释光信号没有随深度逐步增加的规律,而湖相样品热转移光释光信号随深度逐渐增大;冲洪积物细颗粒石英样品回授光释光不能得出剂量值,剂量不能恢复;而湖相样品回授实验室附加剂量与测得的剂量在2%的误差范围内一致,说明回授光释光测年在一定时间范围内对于湖相样品测年是可行的;细颗粒石英回授释光在测量>10万a的湖相样品年龄方面具有很大的潜力 |
| 关 键 词： | 水成沉积物 细颗粒石英 热转移光释光 回授光释光 |
PRELIMINARY STUDY OF RE-OSL ON WATER-DEPOSITED SEDIMENTS |
|
| JI Hong-lei,ZHAO Hua,WANG Cheng-min,MAO Hong-liang,LU Yan-chou.PRELIMINARY STUDY OF RE-OSL ON WATER-DEPOSITED SEDIMENTS[J].Seismology and Geology,2010,32(2):320. | |
| Authors: | JI Hong-lei ZHAO Hua WANG Cheng-min MAO Hong-liang LU Yan-chou |
| Affiliation: | JI Hong-lei1)ZHAO Hua1,2)WANG Cheng-min1)MAO Hong-liang1)LU Yan-chou2)1)Institute of Hydrogeology and Environmental Geology,CAGS,Shijiazhuang 050061,China2)State Key Laboratory of Earthquake Dynamics,Institute of Geology,China Earthquake Administration,Beijing 100029,China |
| Abstract: | According to measuring the natural TT-OSL signals of the fine-grained quartz from both fluvial and lacustrine sediments,the dose recovery experiment and the comparison of the multiple aliquots fine-grained quartz SMAR and Re-OSL dating results,the possibility of Re-OSL dating with fine-grained quartz for water-deposited sediments has been studied.The results show that,the Re-OSL signals accumulated in the fine-grained quartz from fluvial sediments are lack of regularity with the depth,and the Re-OSL signals of the fine-grained quartz can not yield the dose values;While the Re-OSL signals of the lacustrine sediments increase gradually with the depth.The Re-OSL dose measured and laboratory additional dose are consistent within 2%error range,which indicates that the Re-OSL dating with the fine-grained quartz for lacustrine sediments is feasible to some range of time.The Re-OSL dating method has much potential for dating the lacustrine samples more than 100ka years |
| Keywords: | water-deposited sediments fine-grained quartz TT-OSL Re-OSL |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
