CAJ | 학술논문

在渤海湾沿海低地地区获得4个机械钻孔，结合AMS 14C测年方法，对Ⅱ海的年龄进行了研究。结果显示，在Ⅱ海所在层位获得的14C样品年龄均大于43.5ka BP，说明渤海湾沿海低地地区Ⅱ海形成于MIS 3早期或MIS 5，而不是前人认为的23~39ka。建议在前人地层结构研究成果的基础上，系统开展Ⅱ海年龄研究。
재발해만연해저지지구획득4개궤계찬공，결합AMS 14C측년방법，대Ⅱ해적년령진행료연구。결과현시，재Ⅱ해소재층위획득적14C양품년령균대우43.5ka BP，설명발해만연해저지지구Ⅱ해형성우MIS 3조기혹MIS 5，이불시전인인위적23~39ka。건의재전인지층결구연구성과적기출상，계통개전Ⅱ해년령연구。
Four drilling cores were collected from coastal lowland of Bohai Bay, and AMS 14C dating method was used to study the age of the second marine layer in coastal low land of Bohai Bay. The dating results of the samples collected form the second marine layer show that the ages are all older than 43.5ka BP, which indicates that the formation of the second marine layer occurred in early MIS3 or MIS 5 rather than 23~39ka as previously considered. Based on previous stratigraphic studies, the authors hold that systematic investigation should be carried out for the age of the second marine layer on coastal lowland of Bohai Bay.