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采用X射线衍射技术确定西沙石岛海洋碳酸盐岩样品中文石和方解石的含量比例,进一步用原子吸收技术定量地测定样品中的锶含量.测试结果表明,海洋碳酸盐岩样品中的锶含量可以灵敏地反映出次生碳酸盐的含量比例.据本文中的公式可以校正海洋碳酸盐岩样品的~14C年龄,校正后的~14C年代为古气候和海平面变化的研究提供了有价值的资料.
X-ray diffraction (XRD) was used to determine the proportion of Chinese stone and calcite in Xishuangdao marine carbonate samples, and the content of strontium in the samples was further determined by atomic absorption spectrometry.The results showed that strontium Content can sensitively reflect the proportion of secondary carbonate content.According to the formula in this paper can correct the ~ 14C age of marine carbonate samples, the corrected ~ 14C of paleoclimatic and sea level changes in the study provided Valuable information.