当裂变原子的碎片在固体物质中留下损伤痕迹时形成裂变径迹。实际上,裂变的通常是铀原子。在地质应用方面,记录径迹最重要的固体是矿物。当然,其他原子核也是重要的。径迹可以记录在大部分绝缘固体或半绝缘固体中。它们可以作为测定地质年代的工具最先是由普赖斯和沃尔克提出的。从那以后,大量文献报道了许多应用于测定从最近的考古材料到 Fission tracks are formed when fragments of fission atoms leave traces of damage in the solid material. In fact, the fission is usually uranium atoms. In geological applications, the most important solid that records traces is the mineral. Of course, other nuclei are also important. Traces can be recorded in most solid or semi-insulating solids. They can be first proposed by Price and Volcker as tools for the determination of geologic age. Since then, a large body of literature has reported many applications to the determination of recent archaeological materials