岩石中钾的分布特征带及对地球化学元素迁移机理的探讨

CHARACTERISTIC DISTRIBUTION BELT OF POTASSIUM IN ROCKS AND TRANSPORT MECHANISM OF GEOCHEMICAL ELEMENTS

粤东－闽西南航空伽玛能谱数字图象较清晰地显示出本区岩石中放射性元素存在分布特征带。本文叙述了岩石中钾的分布特征带及其主要特征。传统理论难以解释这些特征，作者提出了带电粒子迁移假说。地壳的挤压和拉仲地带由于有一定方向的压力和张力作用，故能产生一定相位的电位差，在电位差的作用下，离子和离子团在岩石矿物颗粒之间缓慢地移动，最终在地表形成分布特征带。该假说较好地解释了岩石中钾分布特征带的特征，并扩大了找矿思路。

There is a characteristic distribution belt of radioactive elements across East Guangdong andSouthwest Fujian. This paper describes the chief characteristic distribution belt of potassium and itscharacteristics. But it is difficult to explain these characteristics in terms of the traditional theory. Sothe hypothesis of charged particle transport was put forward. Because of orientational pressure and ten-sion in a compressive and tensile zone, which causes a potential difference, ions and ion groups willslowly move among mineral grains, forming a distribution belt. This hypothesis can well explain thefeatures of the potassium distribution belt in the rocks.