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近几年在国外次生晕工作中的两个问题,即景观地球化学在次生晕中的应用及非残坡积物覆盖层次生晕的研究.一、景观地球化学在次生晕中的应用(一)所谓景观地球化学,即研究地壳表面各种介质中(土壤、水、植物、各种堆积物),元素的分配、分布规律及存在形式,并阐明其原因.根据气候、土壤类型、植被、水文、地形及地貌、岩性、元素存在形式及迁移形式等因素,划分为各种景观单元及各种亚类.次生晕的控制因素和不同单元景观的控制因素基本是相同的,或者说:一定的景观单元和亚类,应该具有一定成因类型和发育规律的次生晕,以
In recent years, the work of foreign secondary halo in the two problems, namely, the application of landscape geochemistry in the secondary halo and non-residual sediment cover the level of halo research.A landscape geochemistry in the secondary halo Application (1) The so-called landscape geochemistry, that is, the study of the distribution of the various elements (soil, water, plants, various deposits) on the surface of the earth’s crust, the distribution and distribution of elements and the reasons for its existence, and elucidate the reasons.According to climate, , Vegetation, hydrology, topography and geomorphology, lithology, elemental existent forms and migration forms, etc. The control factors of secondary halo and the control factors of different unit landscape are basically the same , Or that certain landscape units and subclasses should have a secondary halo of certain genetic type and developmental rule