The Liaoji Paleoproterozoic fold zone is an important fold-orogenic and metallogenic zone in the early Precambrian.
辽吉古元古宙褶皱带是早前寒武纪时期的一条重要的褶皱造山带与成矿带。
2
The Longshoushan Group of Paleoproterozoic age in the Dongdashan district is a metamorphic terrane composed of metamorphic rocks of amphibolite facies.
东大山地区龙首山岩群形成于早元古代，是一套经角闪岩相变质改造的变质地质体。
3
This implies that they have close affinity, and probably are derived from same metamorphic basement with a crust formation age of late Paleoproterozoic.