节点文献
碳-14考古断代原理
The theory of judging the era by using carbon-14 in archaeology
【摘要】 放射性元素碳 - 1 4的半衰期为 5 730年。自然界中活着的生物体中碳 - 1 4含量应为定值 ,生物死亡之后 ,碳 - 1 4含量按一定规律衰减。考古学家根据死亡后生物体内碳 - 1 4含量相对于其原始量的变化来断定它所属年代。
【Abstract】 Half-life of radioactive element carbon-14 is 5730 year. In natural world the content of carbon-14 in live being is constant. After death the content of carbon-14 reduces gradually according to definite disciplinarian. Archaeologist can judge what era the dead being belongs to according to the amount comparison of the original content of carbon-14 in live being with that in dead being.
- 【文献出处】 吉林特产高等专科学校学报 ,Journal of Jilin Local Specialty College , 编辑部邮箱 ,2004年03期
- 【分类号】K85
- 【被引频次】4
- 【下载频次】391