Overview
A cave on Iheyajima worn from 280-million-year-old chert, held to be the setting of the myth of the heavenly rock door.
Original supplied text (not re-verified)
A cave on Iheyajima worn from 280-million-year-old chert, held to be the setting of the myth of the heavenly rock door.
References
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百科形式の表示に対応しています。内容は公開情報に基づく個別確認が必要であり、現時点で完全な事実確認を示すものではありません。