Today, accelerator mass spectrometry (AMS) technology enables us to carry out very precise measurements of radiocarbon (14C). Unfortunately, due to fluctuations in the 14C calibration curve, the resulting calibrated time intervals vary from decades up to centuries in calibrated age. Within a time scale of several decades, we can find several time intervals on the 14C calibration curve which correspond with periods of rapid increases in atmospheric 14CO2 activity. Some of these “high slope” parts of the calibration curve could be used for fine time resolution for radiocarbon dating of individual samples. Nevertheless, there are certain limitations owing to the properties of the samples measured. We have prepared a time-resolution curve for the 14C dating method, applying calibration curve IntCal13 and assuming an uncertainty of 14C analyses ±15 yr BP (for recent samples). Our curve of the time resolution covers the last 50 ka. We found several time intervals with time resolution below 50 yr BP for the last 3 ka. Several time intervals which can enable substantially better time resolution compared to neighboring parts of the calibration curve were also found for periods older than 3 ka.

今天，加速器质谱（AMS）技术使我们能够进行非常精确的放射性碳（14 C）测量。不幸的是，由于14 C校准曲线的波动，导致的校准时间间隔在几十年到几百年的校准年龄内变化。在几十年的时间范围内，我们可以在14 C校准曲线上找到几个时间间隔，这些时间间隔对应于大气中14 CO 2的快速增加时期。活动。校准曲线的这些“高斜率”部分中的一些可用于为单个样品的放射性碳测年提供精细的时间分辨率。尽管如此，由于所测样品的特性，仍存在一定的局限性。我们为14 C测年方法准备了时间分辨率曲线，应用了校正曲线IntCal13，并假设14 C的不确定度分析±15 yr BP（对于最近的样品）。我们的时间分辨率曲线涵盖了最后50 ka。我们发现最后3 ka的几个时间间隔的时间分辨率低于50 yr BP。在比3 ka更长的时间段中，还发现了几个时间间隔，这些时间间隔与校准曲线的相邻部分相比可以实现更好的时间分辨率。