lithologic section造句

The reservoir in middle and upper part of qiketai formation is mainly composed of lithic sandstone , which is the first lithologic section
七克台组中上部储集层以岩屑砂岩为主，属于第一岩性段。
The reservoir from the lower part of qiketai formation to xishanyao formation is mainly composed of feldspathic litharenite , which is the second lithologic section
七克台组下部-西山窑组储集层以长石岩屑砂岩为主，属于第二岩性段。
It's difficult to find lithologic section in a sentence. 用lithologic section造句挺难的