Studies of san'in region

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Studies of san'in region 13
2020-12-31 発行


A Study on the spread of iron implements in the Chugoku region during the Yayoi period
Ege, Kazuhiro Shimane University Museum
This study aimed to discover the phase of the Yayoi period that saw the spread of iron implements in the Chugoku region. To do so, it analyzes the spread of the distribution of settlement remains from which iron implements were excavated and describes the composition and quantity of such tools in each phase. The results show that the iron implements’ distribution network includes one route up the main rivers from the Sea of Japan and the Seto Inland Sea, as well as an east-west route, which crossed each water system of the Chugoku Mountains inland. In Suo, Aki, southern Bicchu, Bizen, and Sanin, the quantity of iron implements increased at the end of the Yayoi period. The ratio of iron arrowheads was high in Suo, Aki, southern Bicchu, and Bizen, but on the other hand, the ratio of iron industrial tools such as spear-style planning tools and knives was high in Sanin. The results show that the increase in iron implements impacted the emergence of the tombs of the chiefs, such as with the abundant grave goods and large-scale grave mounds. This is because the chiefs’ power increased when they controlled the distribution of the iron implements.