- 著者
-
藤井 昭二
中村 俊夫
Mappa Haruna
- 出版者
- 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
- 雑誌
- 名古屋大学加速器質量分析計業績報告書
- 巻号頁・発行日
- no.2, pp.70-75, 1991-03
There are very fine marine terrace along the Bira to Pasir Putih coast southern part of south Sulawesi. These marine terrace consists of Miocene to Eocene reef coral with two notches. Position of one notch is in the one of high tide and another one is in 3-4m high above high tide with attched reef corals. ^<14>C ages of these emerged reef corals attached basement rock are dated by the Tandetron method at the Dating and Materials Research Center, Nagoya University. Result of age dating is shown is Table 1. Sea levels of 22to 40ka before present were 120 to 50m deeper than the present sea level. So uplifting rates calculate to 5.5 to 1.5mm/year. It is unresonable that two different rates estimate in same locality. Then sea level of 20 to 40ka before present must have been high geoid surface in this area.