中国钾盐地质资源现状与找钾方向初步分析

分析了中国钾资源供需形势、有利成盐找钾时代、主要的有利成钾盆地等,回顾了中国找钾工作的历史,指出中国西部仍有找钾前景,尤其是中、上侏罗统-白垩系和新生界,其次是上震旦统-寒武系、石炭系、奥陶系和三叠系,同时,还应继续开展现代盐湖和地下卤水找钾和综合评价,主要找钾地区为塔里木盆地、滇西-羌塘盆地、柴达木盆地和上扬子盆地.鉴于中国特定的成盐构造地质条件和钾盐成矿、保存特点,以及国外预测找钾的经验,在中国找钾要有做长期深入勘查研究的思想准备和采取切实有效的措施,建议对找钾工作加大投入,加强找钾预测的地质基础研究,建立专业队伍和落实油钾兼探的方针.

Present situation of potash resources and direction of potash search in China

This paper analyzes the situation of supply and demand of potash resources, favorable salt- and potash-forming epochs and main favorable potash-forming basins in China and reviews the history of potash search work of China. It points out that there are still potash prospects in western China, especially in the Mid-Late Jurassic-Cretaceous and Cenozoic and secondarily in the late Sinian-Cambrian, Carboniferous, Ordovician and Triassic, and in addition, it also indicates that we should continue to look for potash in modern salt lakes and underground brine and conduct a comprehensive evaluation of them. The main areas of potash search are the Tarim, western Yunnan-Qiangtang, Qaidam and Upper Yangtze basins. According to China's particular salt-forming tectonic conditions and characteristics of potash formation and preservation, combined with the experience in potash prognosis and exploration in foreign countries, we should prepare for long-term, persistent and deep-going exploration and study of potash in China. It is suggested that the country should make more investment in potash search, strengthen the basic geological study of potash prognosis, establish a professional contingent of potash search and implement simultaneous exploration of oil and potash.