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本文描述了内蒙古某干旱荒漠区旱季和雨季期间地下地球化学异常的特征。根据19切们年旱季和雨季两次区域性地下水地球化学采样结果。发现地下水中主要指示元素含量具有明显的季节性变化。雨季期间水地球化学异常的峰值与旱季比较沿剖面向较低部位移动,已知矿带上方或其附近的主要指示元素的水地球化学异常几乎消失,异常的浓集中心向远离矿带处位移。文中详细探讨了本区降雨和蒸发一浓集作用对水地球化学异常的形成及运移的影响。
This paper describes the characteristics of underground geochemical anomalies during the dry and rainy seasons in an arid desert region of Inner Mongolia. Based on 19 regional dry-ground and wet-season regional groundwater geochemical sampling results, It is found that the content of main indicator elements in groundwater has obvious seasonal changes. The peak of hydrogeochemical anomaly during the rainy season moved along the profile to the lower part of the map compared with the dry season. The hydrogeochemical anomalies of the major indicator elements above or near the known ore zone almost disappeared and the abnormal concentration center moved away from the ore zone . In this paper, the effects of rainfall and evaporation-concentration on the formation and migration of hydrogeochemical anomalies are discussed in detail.