2024-03-28T10:29:27Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00011634
2023-11-13T06:05:07Z
879:1183:1184:1235
与那国島遺跡ポイントおよび沖縄本島付近海底から得られた炭酸塩質サンプルの<14>^C年代測定
<14>^C age measurement of carbonate samples recovered from the Iseki Point off Yonaguni-jima and the sea-floor off Okinawa-jima
木村, 政昭
Kimura, Masaaki
中村, 俊夫
Nakamura, Toshio
石川, 賀子
Ishikawa, Yoshiko
open access
名古屋大学年代測定資料研究センター 天然放射性元素測定小委員会
本文データは学協会の許諾に基づきCiNiiから複製したものである
^<14>C ages of 18 samples recovered from the sea-floor off Yonaguni-jima and offOkinawa-jima were measured by Tandetron Accelerator Mass Spectrometry of Dating and Materials Research Center in Nagoya University. ^<14>C ages reveal that this area may have been submerged by eustatic rise of seawater during the postglacial stage. Artificial pyramidal configuration of the Iseki Point off Yonaguni-jima may have been made older than 6,000 years on shore, based on ^<14>C age determination and geological observation by scuba diving. ^<14>C ages of stalactite recovered from submarine caves off Ryukyu Islands shallower than 40m showed about 40,000 to 20,000 years BP. These ages are coincident with that of the regression in Wurm glacial age. These is no evidence of large-scaled crustal movement in this area after the postglacial age. Therefore, these stalactite caves may have been formed on the coast during regression stage of the glacial age. In conclusion, the sea-floor near islands in the middle to southern Ryukyu Arc has not been suffered from a big crustal movement and then this area has been mainly submerged by the eustatic movement in late Pleistocene time.
タンデトロン加速器質量分析計業績報告 Summaries of Researches Using AMS 1999 (平成11)年度
名古屋大学年代測定資料研究センター 天然放射性元素測定小委員会
2000-03
jpn
departmental bulletin paper
VoR
https://doi.org/10.18999/sumrua.11.210
http://hdl.handle.net/2237/13507
https://nagoya.repo.nii.ac.jp/records/11634
10.18999/sumrua.11.210
名古屋大学加速器質量分析計業績報告書
11
210
230
https://nagoya.repo.nii.ac.jp/record/11634/files/KJ00000187361.pdf
application/pdf
1.1 MB
2018-02-20