Based on core observation,thin-section analysis,physical property testing,fracture statistics,fluid inclusions analysis and fracture fractal research,it is concluded that there are four types of metamorphic rocks in the Archean Ciyutuo buried hill.

• 运用岩心观察、薄片鉴定、物性实测、裂缝统计、包裹体分析、裂缝分形等技术方法,研究了茨榆坨潜山太古界裂缝型储层特征及其控制因素。