Koda Shell Mound

Japanese: 幸田貝塚 - こうでかいづか

This is an archaeological site from the early Jomon period in Koda, Matsudo City, Chiba Prefecture. It is located about 20km upstream from the mouth of the Edogawa River, on the western edge of the Shimousa Plateau (at an altitude of about 19m) facing the alluvial lowland, and is a group of shell mounds with a purely salty shell layer consisting of clams, cockles, etc. Fourteen small shell mounds are scattered around the edge of the plateau that juts out like a peninsula. This archaeological site has been known for a long time, and attracted attention in 1930 due to an investigation by the Oyama Institute of Prehistory. Several small-scale excavations were attempted thereafter, and in 1940, excavations by Yajima Seisaku uncovered the remains of two pit dwellings from the Hanazumi Lower Layer period.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

千葉県松戸市幸田にある縄文時代前期の遺跡。江戸川の河口から上流へ約20km，沖積低地に面した下総台地の西辺部(標高約19m)にあり，貝層がハマグリ，ハイガイなどで構成される純鹹（じゆんかん）の貝塚群である。14ヵ所の小貝塚が，半島状に突出した台地の縁辺部に点在する。古くより知られた遺跡で，1930年，大山史前学研究所の調査により注目されるところとなった。その後，小規模な発掘が幾度か試みられたが，40年，矢島清作の発掘によって，花積下層式期の竪穴住居跡2基が発見された。

出典　株式会社平凡社世界大百科事典第２版について　情報

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