2013年第5期目录
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封面故事：云南兰坪—思茅盆地勐野井钾盐矿床的开采坑道628 m中段坑道顶部的纯钾石盐层。该钾石盐层厚度3~20 cm，走向NE20°，出露长度30余m。沉积时代为白垩纪，是我国至今发现的唯一一处古代固体钾盐矿床。勐野井钾石盐层的产状特征可与美国犹他州卡尔斯巴德得的钾盐层进行对比，说明兰坪—思茅盆地海源陆相的古盐湖环境有利于钾石盐沉积，为钾盐成矿研究和该地区的钾盐产业发展提供了科学依据。由中国地质科学院矿产资源研究所刘成林研究员主持的国家“973”计划项目相关研究成果和进展详见本期专辑。（图片提供：方勤方）
Cover Story：The pure sylvite bed at the top of the 628 m level tunnel, the mining tunnel of the Mengyejing potash deposit in Lanping–Simao basin of Yunnan Province. This sylvite bed is 3~20 cm in thickness and strikes NE20°, with the exposed length being over 30 m. Its sedimentation occurred in the Cretaceous, and it is the only ancient solid potash deposit ever discovered in China. The Mengyejing sylvite bed is comparable with the Carsbad potash bed in Utah State of the USA in modes of occurrence, which suggests that the marine-sourced continental ancient saline lake environment was favorable for the depo-sition of sylvite. The results obtained by the authors provide scientific basis for the study of potash mineralization and the development of potash industry in the study area. The details of the relevant research achievements and progress of the State ‘973’ Plan directed by Professor LIU Cheng-lin, Institute of Mineral Resources, CAGS, see this spe-cial issue. (Photo by FANG Qin-fang)
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