中文摘要：

为了研究中亚黄土中的碳酸盐、有机质和可溶性盐等不同组分对磁化率的影响,本文对伊犁黄土样品分别进行盐酸、醋酸、蒸馏水和双氧水等处理,并与黄土高原黄土样品进行了对比.结果表明,盐酸不但可以溶蚀样品中的碳酸盐而且还可以与磁性矿物中的铁离子反应,分解超顺磁性颗粒（SP）中细颗粒组分,造成磁化率降低.与原样相比,中亚和黄土高原醋酸样品质量磁化率（χlf）和频率磁化率（χfd）分别增加20.3%、53.4%和4.8%、13.0%,说明中亚黄土碳酸盐对磁化率影响远大于黄土高原,醋酸对SP没有影响或者影响很小.双氧水和蒸馏水样品χlf变化幅度小于4%,说明黄土中有机质和易溶组分对磁化率的影响均非常小.此外,通过对中亚和黄土高原盐酸和醋酸样品的温度磁化率（TDS）曲线对比分析,表明黄土高原黄土退热过程磁性矿物的转化可能主要是SP组分中的细颗粒成分,伊犁黄土中纤铁矿和磁赤铁矿或针铁矿含量较黄土高原低.

英文摘要：

In order to identify the effects of different components （carbonate, organic matter, soluble salt） on magnetic susceptibility ,＇MS） enhancement of eolian loess in the Ill area, Central Asia （CA）, we designed a series of comparative experiments to remove organic material by perhydrol （H2O2） and carbonate by acetic acid （AA） and hydrochloric acid （HCl）, and compared with the loess samples from Chinese Loess Plateau （CLP）. The results show that strong acid HCl not only can remove carbonate, but also can react with Fe ion in samples, dissolves superparamagnetic particles（SP）, which directly reduced the MS. Compared with the original samples, MS, Xfd of the CA and CLP samples pretreated by AA have an average increase of 20. 3%, 53. 4% 4. 8% and 13. 0%, respectively, which indicates that carbonate has greater influence on MS of CA samples than CLP samples, whereas the AA has little or small effect on them. The MS of samples pretreated by H20z and distilled water have a change by less than 4%, which implies that both have little effect on MS. In addition, based on the comparison of the temperature dependence of susceptibility （TDS） curves of different samples, the results indicate that the newly formed ferrimagnetic minerals during heating may be transformed from the fine particle composition of SP, the contents of lepidocrocite and ferromagnetic maghemite or goethite are higher in the Ili loess than those in the Chinese loess.