Science. 1980 Feb 29;207(4434):977-9. doi: 10.1126/science.207.4434.977.
Ages of fossil bones were determined by electron spin resonance spectroscopy. The electron spin resonance signal is associated with lattice defects or trapped centers produced by natural radiation in the bones and gives a measure of the total dose of natural radiation, or the archeological dose. Archeological doses were determined for samples of known age from a variety of sites and used to estimate apparent average annual rates of natural radiation at the sites. The method has the advantage that the sample need not be ground or heated, and it should be useful for dating biological materials.
古生物骨骼的年代是通过电子自旋共振光谱法来确定的。电子自旋共振信号与骨骼中由自然辐射产生的晶格缺陷或陷获中心有关，它反映了自然辐射的总剂量，也就是考古剂量。对来自不同地点的具有已知年代的样本进行了考古剂量测定，并用于估算这些地点的自然辐射的平均年表观速率。该方法的优点是样品不需要研磨或加热，而且它应该对生物材料的年代测定有用。
