论文部分内容阅读
在考古学、人类学和地质学研究中,已经有了许多年代测定法,但~(14)C 法所测年龄的上限值为4—5万年,而 K—Ar 法所能测的年龄则超过百万年。此间留下一大段时间“空白”。ESR 测定的年龄正好填补了这段“空白”,而且它的测试对象比裂变径迹法更广泛。ESR 法测年龄是以查明天然物质中不配对电子的局部状态为基础的。自然界存在着由微弱射线辐照过的矿物、化石和考古遗迹,它们受到晶格级的损伤,
There have been many dating methods in archeology, anthropology, and geology, but the upper limit of age measured by the ~ (14) C method is 4-5 million years, and the K-Ar method can measure Age is more than a million years. Leave a long time here “blank.” The age of ESR just fills this “gap,” and its test targets are broader than fission track methods. The ESR method is based on the determination of the local state of unpaired electrons in natural materials. In nature there are minerals, fossils and archaeological remains that have been irradiated by weak radiation and are damaged by lattice-level damage,