| 偃师商城宫城建筑基址夯土的光释光测年初步研究 |
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| 引用本文： | 张家富,苗建民,王学荣,周力平. 偃师商城宫城建筑基址夯土的光释光测年初步研究[J]. 核技术, 2003, 26(1): 40-44 |
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| 作者姓名： | 张家富 苗建民 王学荣 周力平 |
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| 作者单位： | 北京大学环境学院地理系地表过程分析与模拟教育部重点实验室,北京,100871;故宫博物院文保科技部,北京100009;中国社会科学院考古研究所,北京,100710 |
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| 基金项目： | 国家自然科学基金 (NSFC4992 5 3 0 7),教育部留学回国人员科研启动基金资助 |
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| 摘 要： | 用光释光测年技术对河南偃师商城宫城部分宫殿和围墙基址夯土进行了定年。在夯土基址的建造过程中,有些石英颗粒可能见光而使其光释光信号被释放回零,光释光‘时钟’重新开始计时。本文用单片再生剂量法测夯土中粗颗粒石英的等效剂量,测得的等效剂量值的分布说明石英颗粒的光释光信号在基址建造过程中有不同程度的晒退。据晒退相对彻底的石英颗粒得出的夯土光释光年龄分别是4.0ka、2.2ka和2.5ka。尽管这些年龄值与考古年龄存在差异,但表明用光释法测年技术对宫殿建筑基址夯土进行定年是可行的。
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| 关 键 词： | 光释光测年技术 宫殿建筑基址夯土 偃师商城 |
| 修稿时间： | 2002-05-21 |
Optical dating of tamped earth from the Yanshi walled city |
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| ZHANG Jiafu MIAO Jianmin WANG Xuerong ZHOU Liping. Optical dating of tamped earth from the Yanshi walled city[J]. Nuclear Techniques, 2003, 26(1): 40-44 |
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| Authors: | ZHANG Jiafu MIAO Jianmin WANG Xuerong ZHOU Liping |
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| Affiliation: | ZHANG Jiafu 1 MIAO Jianmin 2 WANG Xuerong 3 ZHOU Liping 1 1 |
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| Abstract: | The tamped earth from the construction base of the city walls in the Yanshi walled city in Luoyang, China, was dated using the optical dating technique. The optical ages of the tamped earth samples are 4.0ka, 2.2ka and 2.5 ka respectively. Although these ages are older or younger than the archaeological ages, which imply that some quartz grains were exposed to daylight during the construction of the city walls, the optical dating technique is suitable for dating tamped earth. |
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| Keywords: | Optical dating Tamped earth The Yanshi walled city |
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