| In this paper,we studied the prosium in China and studied the typology analysis and staging of dysprosium,and then carried on the research on related problems.The following are the main points:First,based on the literature,we preliminarily determined the approximate shape of the dysprosium recorded in the literature,and conducted a textual research on the other appellations in the literature records,and determined that "the beginning vector" was not the dysprosium;Subsequently,the literature and archaeological findings were used to identify the objects suspected of dysprosium,and to determine that the pingyang tomb was only unearthed in M140,and the bronze was not dysprosium.Secondly,it is divided into two categories: dysprosium and dysprosium,by means of typology in the present study.According to the different shape of the arrowheads,the separation can be divided into the flat diamond arrowhead type,the flat blade arrowhead,the arrowhead type and the arrowhead type.Among them,type B is divided into two subtypes according to whether there is a waist.Type C is divided into three subtypes according to the shape of arrowheads,and type D is divided into three subtypes according to different shapes of arrowheads.The body is divided into three arrowheads and long flat cone-shaped arrowheads according to different arrowheads.According to the evolution law of dysprosium,dysprosium was divided into four phases,and the first phase was the first phase.The second and third paragraphs are the second period,which is about the eastern han dynasty to the sui and tang dynasties.The fourth stage is the third period,and the period is the liao period,but the present archaeological excavations are concentrated in the early and middle periods of the liao dynasty.The fifth paragraph is the fourth period,the period of the yuan Ming and qing dynasties.On the basis of staging,the time changes of the distribution of dysprosium were investigated.In the mid-and late spring and autumn period,there were few excavations and widespread distribution.During the period of the eastern han dynasty and the sixteen kingdoms period of the wei and jin dynasties,there were many unearthed sites,mainly in the hulunbuer plateau of Inner Mongolia.During the sui and tang dynasties,there was a sudden decrease in the location of the excavated sites.Only xinjiang and the hulunbuir plateau in the northeast of Inner Mongolia were seen.In the third period,the location of the excavated site increased sharply,which was in the jurisdiction of liao dynasty,and it was frequently found near the upper capital of liao dynasty.During the yuan and Ming dynasties,only two were found in the present archaeological work.Combined with literature,whistling arrow distribution range and quantity of change is closely related with the rise and fall migration of ethnic minorities,from the second phase of the clear,whistling arrow found in hulunbuir plateau,but with the extension of colophon xianbei migrating south,central and southern Inner Mongolia began whistling arrow unearthed,with the establishment of xianbei ethnic minority group regime and their degree of deepening,whistling arrow is documented,but it is rare for buried.With qidan people powerful,to the establishment of the liao,whistling arrow unearthed Numbers began to surge,and from the qidan nobles or officials,burial,and this is the period whistling arrow throughout the liao attends Beijing near the reason,as the liao localization and weak,whistling arrow began to disappear in LiaoMu. |