Restudies on the appearance process of mounded tombs in Hokuriku region of JAPAN SEA coastal area

本研究旨在以新的研究视角，探讨日本东海沿海北陆地区墓葬的形成过程、“海路”文化的影响以及控制互动与贸易的酋长。作为一个案例研究，我们重点研究了富山县Himi市的Aoshimada墓群。通过两次学术会议、对广岛A1墓室墓葬品的调查和对广岛a2墓室的发掘，明确了A1墓室早期后期（4世纪中后期）（约70米，锁眼形墓室）的概况。A2丘比这个稍新一些。此外，与早期最后一段估计的柳花山墓群阶段（107.5米，后四边形的锁孔墓群）中没有土葬，而在青山A1墓群同一阶段的区域中出现了60-70米等级的土葬。因此，认为柳栽野山期出现了一个统治广大地区的大酋长。在此之前的阶段，青山瘤很重要。另外，对于富山县规模最大的青山A1和柳奈达山古冢在Himi地区的建设，估计主要因素是日本海和一个泻湖，一个内陆的互动和贸易方式将与诺东地区联系起来。这对研究日本海沿岸富山、野户地区的墓群形成过程具有重要意义。

The purpose of this research is to consider appearance process of mounded tombs in Hokuriku region of Japan SEA coastal area from a new study viewpoint, influences of culture by "coastal route "and chiefs who controls interaction and trade. As a case study, we focused on the Aoshimada -mounded tomb group located in Himi city, Toyama prefecture.Through of twice study meetings, investigation of grave goods about Aoshimada-A1 tumulus, and excavation of Aoshimada-A2 tumulus, it became clear around the latter portion of early stage (middle -latter portion of fourth century) about A1 tumulus (around 70m, keyhole-shaped mounded tomb. A2 tumulus is slightly newer than this. Furthermore, there is not mounded tomb in the stage of Yanaidanunooyama tumulus (107.5m, keyhole tomb with a quadrangular rear portion) estimated with the last portion of early stage, whereas mounded tombs of 60-70m grade appear in areas for the same stage of Aoshimada A1 tumulus. Therefore, It is thought that a major chief dominating wide area appears in the stage of Yanaidanunooyama tumulus. Aoshimada tumulus is important when think about the stage just before that.In addition, as for Aoshimada A1 and Yanaidanunooyama tumulus of the greatest scale in Toyama prefecture being built in Himi area, it is estimated main factors that the Japan Sea and a lagoon, an inland way of interaction and trade to be connected with Noto region. It is important when study appearance process of mounded tombs in Toyama and Noto region, Japan Sea coastal area.