The fault depressions, isolated with one another but genetically related, are developed in deep of southern Songliao basin and most of them are considered to be capable of generating hydrocarbon.
2
矿区地质灾害既普遍又严重，主要类型有：地震、活动断裂、滑坡、地面裂陷、泥石流及土壤侵蚀等。
Main disasters in the region include earthquake, active faulting, landslide, fissure and sinking, debris flow and soil erosion.
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