The main pathway of oil-gas long-distance and large-scale migration consists of two regional unconformity interfaces, two detachment surfaces and two groups of faults.

两个区域不整合面、两个滑脱面、两组断裂是油气长距离、大规模运移的主要通道。

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The principal fold age of the two "Indosinian geosynclines" is between the Middle and Late Eocene, which is marked by the regional flagrant unconformity below the Mengla Group and equivalent horizons.

这两个“印支地槽”的主要褶皱时代是中、晚始新世之交，以勐腊群及其相当层位之下的区域性巨大不整合为标志。

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Field surveys and seismic exploration show that the lowest regional angular unconformity older than the Carboniferous developed between the Cretaceous and the pre-Cretaceous strata.

地表地质调查和人工地震勘探结果证实，石炭纪以来最早的区域性角度不整合发育于白垩系与前白垩纪地层之间。

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