主要介绍了碳和氧同位素的地球化学特征, 利用这些特征在沉积环境方面的指示意义分析了潜江盐湖的碳、氧同位素并得出了以下认识: 碳、氧同位素值的高低变化与气候的变化和沉积环境的变化具有很好的相关性; 潜江盐湖是一个封闭的内陆盐湖, 就该湖而言, 其碳同位素值可初步确定为- 5‰(PDB) , 其氧同位素值为- 2‰(PDB)。

This paperm ainly int roduced geochemical characters of C and O iso tope. Using the sign if icance of these characters in the aspect of sediment environment, th is paper analyzed C and O iso tope ofQ ian jiang Saline lake and educed conclu sion s: there are good relat ivity betw een the change of clim ate and sedim ent\r\nenvironm en t and the con tent’s change of C and O iso tope from high to low; it is aobturated saline lake of\r\ninnerland tow ard Q ian jiang saline lake, and the con ten t of C and O iso tope was primarily decided that Ciso tope is - 5‰(PDB) and O isotope is - 2‰(PDB).