资源环境科技发展态势分析平台

Archeomagnetism focuses on exploring high‐resolution variations of the geomagnetic field over hundreds to thousands of years. In this study, we carried out a comprehensive study of chronology, absolute and relative paleointensity on a late Neolithic site in central China. Ages of the samples are constrained to be ~3500‐3000 BCE, a period when available paleointensity data are sparse. We present a total of 64 high‐fidelity absolute paleointensities, demonstrating the field varied quickly from ~55 to ~90 ZAm² between ~3500‐3000 BCE. Our results record a new archeomagnetic jerk around 3300 BCE, which is probably non‐dipolar origin. The new results provide robust constraints on global geomagnetic models. We calculated a revised Chinese archeointensity reference curve for future application. The variations of absolute and relative paleointensity versus depth show good consistency, reinforcing the reliability of our results. This new attempt of combining absolute and relative paleointenstiy provides a useful tool for future archeomagnetic research.