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采用同位素稀释法热电离质谱测量技术 ,藉助于铀系国家一级标准物质GBW0 441 2建立了测年程序 .高精度测定了我国南海全新世珊瑚礁样品的年龄 ,并对质谱和α谱测年方法获得的精度进行了对比和讨论 .研究表明 ,南海在 6 80 0～ 5 80 0aBP是珊瑚礁繁盛时期 ,此期间古海平面高于现今海平面 .
The isotope dilution method is used to determine the age of coral reefs in the Holocene coral reefs in the South China Sea with the help of uranium national standard GBW0 441 2. The dating of mass spectrometry and α-spectrometry The accuracy of the study was compared and discussed.Research shows that the South China Sea was the period when the coral reef was 6 80 0 ~ 580 a BP, during which the paleo-sea level was higher than the current sea level.