Preliminary Analysis of AMS-14C Dating and C and N Stable Isotopes of Human Bones from the Yuanbaoshan Accumulate Stone Tombs in Chifeng,Inner Mongolia Autonomous Region
Based on preliminary archaeological research,in order to clarify the main periods of construction and use of the Yuanbaoshan accumulate stone tombs in Chifeng,Inner Mongolia,as well as the main periods of utilization,development and even destruction of the remains in later generations,this paper selected human bones unearthed from tombs for AMS-14C dating.Meanwhile,based on the direct dating of human bones,a preliminary analysis of stable carbon and nitrogen isotopes was conducted on human bones.We also attempt to reveal the dietary characteristics of the populations in different time periods and restore their subsistence economy at that time.The AMS-14C dating results show that the age of the Yuanbaoshan accumulate stone tombs can be roughly divided into two periods.The early-stage dates back to 5280～4862 years ago,belonging to the late Hongshan Culture;the late-stage dates back to 3822～3493 years ago,belonging to the Xiajiadian Lower Culture period.Therefore,the Yuanbaoshan accumulate stone tombs were built and used roughly in the late Hongshan Culture period,and were reused and developed by the population of the Xiajiadian Lower Culture period.The results of stable carbon and nitrogen isotope analysis show that the populations of the early and late stages basically lived mainly on C4 based food,namely millet and livestock raised on it.Limited data and evidence also seem to show that the degree of intensive development of millet-based agriculture in the late Hongshan Culture was still different from that in the Xiajiadian Lower Culture period.But no matter what,during the late Hongshan Culture period,millet-based agriculture must have been an important material basis supporting the construction and use of the Yuanbaoshan accumulate stone tombs.
Yuanbaoshan Accumulate Stone TombsAMS-14C DatingStable IsotopesLate Hongshan CultureXiajiadian Lower Culture Period
万方数据
维普
