中文摘要：

用重量分析法对长武剖面第四纪黄土和古土壤样品的碳酸盐含量进行测量,并与中和滴定法进行了对比,发现所测样品的碳酸盐含量样本标准差（S）均在0.8以内,平均值为0.48;与中和滴定法测量的结果具有很高的相关性（R^2=0.926）,但相比较而言前者测量迅速,精度较高.结果表明,用该方法测定西峰黄土-古土壤序列碳酸盐含量与磁化率指标具有很好的一致性,能够很好的反应S5以来的古气候旋回,是一种较好的测定黄土沉积中碳酸盐含量的方法.

英文摘要：

The determination of carbonate in Xifeng and Changwu section by gravimetric analysis is developed.The standard deviation is less than 0.8,and the average value is 0.48.The result is consistent with neutralization titrimetry,but the former one is more precise and rapid.The concentrations of carbonate in Xifeng section by gravimetric analysis are good consistent with magnatic susceptibility,reflect the palaeo-climate significantly,and also indicate that the gravimetric analysis is a good method for the determination of carbonate in loess deposits.