Proterozoic dolomite and quartzite in Damintun Depression are best buried hill reservoir rocks, and study of Proterozoic distribution is of significant importance in buried hill exploration.

• 摘要大民屯凹陷元古界白云岩、石英岩为古潜山最佳储集岩性，因而元古界分布研究在古潜山勘探中占有重要地位。