Structural Reverse and its Significance to Oil and Gas Accumulation in Ordos Block in Neogene

Ordos Block is considered as a rather stable basin in Cenozoic by most researchers. The result of our study is different from this opinion. Before the Cenozoic, tectonic movement directions are uplifted in the eastern part and sunk in the western part of the basin. The oldest Cenozoic strata which deposit in the east part of Ordos Basin are Neogene red clays. They appear on both Pre-Tertiary and Post-Mesozoic geological maps of Ordos Basin....