【摘要】 在永城矿区新庄井田二叠系下石盒子组内含有菱铁矿， 呈分散状、结核状分布在高岭石粘土岩中， 通过系统测试分析， 研究了菱铁矿在高岭石粘土岩层中的含量和特征， 对于高岭石粘土岩和菱铁矿的开发利用具有重要意义更多还原

【Abstract】 The kaolinite clayrock of Shihezi formation pesystem,from Xinzhuang mining area of Yong?cheng coal basin,usually is formed by siderites.The siderite occurrences in disproduct and dispersed in the way of concretion in the kaolinite clayrock.On the basis of the survey,experiment and analysis,the authors have studied the content and features of siderites in the kaolinite clayrock bed.更多还原