牙化石ESR测年信号特性的研究  

A Study on ESR dating characteristics of tooth enamel fossils

作　　者：陈士明[1] 严小敏[1] 胡强[1] 郭时清[1] 范海鹰[1] 郑成法[1] 

机构地区：[1]复旦大学

出　　处：《核技术》1995年第8期495-498,共4页Nuclear Techniques

摘　　要：用电子自旋共振方法考察了动物牙化石样品测年信号的来源和性质．通过与纯物质的比较和使用正电子湮没技术进行的研究表明牙化石珐琅样品顺磁中心是由ＰＯ３－４子产生的Ｆ中心所形成．The characteristics of ESR signals used in the dating of hamal tooth enamel fossils have been investigated. According to the comparison of the results obtained from tooth enamel with those born pure substance and the study by positron annihilation technique, it can be concluded that the paramagnetic centers of tooth enamel is Produced by PO3-4 ion formed F centers.

关 键 词：牙化石 正电子湮没技术 年代 测定 ESR法 

分 类 号：P597.1[天文地球—地球化学]