The Donglongshan site in Shangluo city has been the only locus with abundant remains of the Xia Culture and continuous stratum from the Longshan to Shang Cultures discovered in Shaanxi province to date. Based on the 1...The Donglongshan site in Shangluo city has been the only locus with abundant remains of the Xia Culture and continuous stratum from the Longshan to Shang Cultures discovered in Shaanxi province to date. Based on the 14C-AMS dating of 9 charcoal samples which were collected during excavation and the calibration of these serial samples by Oxcal3.1,the Early Xia Culture at the Donglongshan site should be dated to 1900~1600 BC,which was later than the Late Longshan culture but prior to the Early Shang Culture according to the result in ’The Xia-Shang-Zhou Chronological Project’.展开更多
自然环境变迁影响古代文明的发展与更替,被越来越多的学者所关注和认可。本文对陕西省商洛市东龙山遗址从仰韶、龙山文化至夏、商、周代时期连续的文化遗存和全新世黄土-古土壤序列进行了磁化率测量、孢粉分析、动物化石分类鉴定,考古...自然环境变迁影响古代文明的发展与更替,被越来越多的学者所关注和认可。本文对陕西省商洛市东龙山遗址从仰韶、龙山文化至夏、商、周代时期连续的文化遗存和全新世黄土-古土壤序列进行了磁化率测量、孢粉分析、动物化石分类鉴定,考古遗址调查和^(14)C加速器测年,为的是进一步探讨环境变迁与考古文化更替之间的内在联系。在该遗址区域内分别选定3个全新世黄土-古土壤剖面和考古遗址采集样品,进行高精度^(14)C加速器测年,根据测年数据建立合适的贝叶斯校正模型,以此进行^(14)C系列样品的贝叶斯校正,首次建立了该地区全新世黄土-古土壤地层和考古遗址的^(14)C年代序列。马兰黄土与全新世黄土-古土壤交界处的^(14)C年龄为9470~9130 cal BP,复合古土壤下部形成时期为8020~7940 cal BP:复合古土壤上部形成时期为4970~4840 cal BP;新黄土开始堆积时间为2960~2840 cal BP。仰韶文化始于复合古土壤下部形成之后:龙山文化始于复合古土壤上部形成时期;夏、商代始于4080~3840 cal BP;周代始于新黄土开始堆积时间。通过对东龙山地区环境代用指标的分析,揭示了该地区进入全新世初期时,气候逐渐转暖,此后古土壤开始发育,仰韶文化、龙山文化和夏代、商代文化繁盛期的出现均与温暖湿润的气候环境相关联,自周代以后,气候转为干冷,开始堆积新黄土。而在仰韶文化与龙山文化交替时段(5000 cal BP),龙山文化与夏代、商代交替时段(4000 cal BP)以及周代晚期(3000 cal BP)发生的降温事件在全球均有记录,这3次短暂而突然的气候降温事件的交替出现,导致温度和降水逐渐下降和减少,促进了古人类文明发展的兴衰更替。展开更多
文摘The Donglongshan site in Shangluo city has been the only locus with abundant remains of the Xia Culture and continuous stratum from the Longshan to Shang Cultures discovered in Shaanxi province to date. Based on the 14C-AMS dating of 9 charcoal samples which were collected during excavation and the calibration of these serial samples by Oxcal3.1,the Early Xia Culture at the Donglongshan site should be dated to 1900~1600 BC,which was later than the Late Longshan culture but prior to the Early Shang Culture according to the result in ’The Xia-Shang-Zhou Chronological Project’.
文摘自然环境变迁影响古代文明的发展与更替,被越来越多的学者所关注和认可。本文对陕西省商洛市东龙山遗址从仰韶、龙山文化至夏、商、周代时期连续的文化遗存和全新世黄土-古土壤序列进行了磁化率测量、孢粉分析、动物化石分类鉴定,考古遗址调查和^(14)C加速器测年,为的是进一步探讨环境变迁与考古文化更替之间的内在联系。在该遗址区域内分别选定3个全新世黄土-古土壤剖面和考古遗址采集样品,进行高精度^(14)C加速器测年,根据测年数据建立合适的贝叶斯校正模型,以此进行^(14)C系列样品的贝叶斯校正,首次建立了该地区全新世黄土-古土壤地层和考古遗址的^(14)C年代序列。马兰黄土与全新世黄土-古土壤交界处的^(14)C年龄为9470~9130 cal BP,复合古土壤下部形成时期为8020~7940 cal BP:复合古土壤上部形成时期为4970~4840 cal BP;新黄土开始堆积时间为2960~2840 cal BP。仰韶文化始于复合古土壤下部形成之后:龙山文化始于复合古土壤上部形成时期;夏、商代始于4080~3840 cal BP;周代始于新黄土开始堆积时间。通过对东龙山地区环境代用指标的分析,揭示了该地区进入全新世初期时,气候逐渐转暖,此后古土壤开始发育,仰韶文化、龙山文化和夏代、商代文化繁盛期的出现均与温暖湿润的气候环境相关联,自周代以后,气候转为干冷,开始堆积新黄土。而在仰韶文化与龙山文化交替时段(5000 cal BP),龙山文化与夏代、商代交替时段(4000 cal BP)以及周代晚期(3000 cal BP)发生的降温事件在全球均有记录,这3次短暂而突然的气候降温事件的交替出现,导致温度和降水逐渐下降和减少,促进了古人类文明发展的兴衰更替。
