溴的地球化学习性及其在四川找钾工作中的应用

溴随海水蒸发成盐发展进程,于固液相中的分布会不断提高,呈线型函数关系。石盐中的 Br·10~3/Cl 值与戍化阶段关系密切,具有找钾标志意义;可判别石盐的海、陆相和原、次生成因及进行盐系韵律划分对比。在四川盆地三叠系成钾预测应用中取得了相应的效果,提供了找钾线索及工作范例。

GEOCHEMICAL BEHAVIOUR OF BROMINE AND ITS APPLICATION TO PROSPECTION FOR POTASH RESOURCE IN SICHUAN

Content of bromine would increase,gradually or in linear functions,both in the solid phase and in the liquid phase with increasing evaporation into salt of sea water. Due to being extremely sensitive to salinization of sea water,the Br·10~3/C(?)ratio in the halite is a better recognizor of the mineral as marine,continental,primary or secondary origin,thus able to be used for correlation and division of the cycles of evaporite succession.Furthermore,its application to potash exploration can not been overlooked,in fact with a successful precedent in conducting potashgenic prognosis on the Triassic sediments of Sichuan basin,providing the clues for hunting potash there and preparing the working standards for prospection of this resource.