This paper introduces the half peak width method ( ki index ) which is widely used in the or1d to analyze the permo - carboniferous sample from budate group in geier sag in hailaer basin and northern songliao basin 引入国际通行的半峰宽法（ ki指数法） ，对海拉尔盆地贝尔凹陷布达特群和松辽盆地北部石炭二叠系的样品进行了分析。
