黒潮圏の先史文化 (黒潮圏の第4紀古環境特集号)

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概要

• 論文の詳細を見る

• The Kuroshio, or Black Current, originates to the east of the Philippine Islands and flows north to Taiwan and the Nansei (Ryukyu) Islands. The main stream of the current washes the Pacific Ocean coast of Honshu, the main island of Japan, and then passes between Mikura and Hachijo, two of the Izu Islands. It then proceeds eastward and gradually dies out.The Kuroshio has been called a "road in the sea" as it has facilitated the introduction of southern culture to Japan since prehistoric times. In the Nansei Island area, coral lagoon fishing and shellfish collection reached a high technical level. Trade in the large conch shells of the southern seas developed and many examples have been found in islands situated along the route of the current. This proves that it also functioned as a "Shell Route".The Izu Islands have also been influenced by their location on the current. Prehistoric cultural similarities have been noted between the island of Hachijo and the Nansei Islands, also the Kinai area and even the Ogasawara and Mariana Islands located far south of the Izu Islands.The culture of the prehistoric Kuroshio region was characterized by the knowledge of highly advanced ocean sailing techniques enabling contact between the remote islands and the main islands of Japan. This long-distance seamanship has its root in the adventurous fishing activities of the Jomon people of the Holocene.About 3, 500 years ago, the sea-borne Mongoloids who settled the islands of Southeast Asia began to spread and expand into Oceania. However, in contemporary Jomon Japan, people from the island of Kyushu had already crossed the Kuroshio Current to the Nansei Islands. Some had even reached the Okinawa Islands-about 6, 500 years ago. At about this time, prehistoric people had also reached Hachijo in the Izu Islands. So the spread of the Jomon people into the southern islands actually predates that of the "Sea Mongoloids" by several thousand years. This movement of the Jomon people must undoubtedly also have some relationship to the even larger scale dispersal of people in the wider northwest Pacific region.

• 日本第四紀学会の論文

著者

• 小田 静夫

  東京都教育庁・文化課

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• 黒潮圏の先史文化 (黒潮圏の第4紀古環境特集号)
• 中村論文に対する論評 (中部日本における後期更新世の諸問題--とくに寒冷気候について)

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