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目的:研究南华北中、新生代盆地构造特征。方法:对盆地基底特征及造盆阶段进行划分。结果:探讨了盆地形成机制及盆地演化。结论:南华北盆地晚三叠世及早、中诛罗世因秦岭大别造山带的挤压形咸两期压陷盆地,晚件罗世一早白尘世、晚白噩世(?)一早第三纪形成两期拉张断陷盆地。上述4期盆地均具有压陷、拉张不强的特点,因而其作用卷入层次浅,盆地基底沉降量不足,地壳拉张幅度小、热流值低。这些因素造成了该区烃源岩发育差和(或)有机质演化程度低,不利于油气形成。下步勘探的重点应放在边界断裂滑脱面深达岩石圈中等层次的断陷里。
Objective: To study the tectonic features of Meso-Cenozoic basins in South China. Methods: The basal characteristics of the basin and the basin-making stage were divided. Results: The basin formation mechanism and basin evolution were discussed. CONCLUSIONS: Late Triassic early and Middle Zhuluo Mountains in southern North China Basin were formed by the compression-braided and salt-formed depression basins of the Qinling Dabie orogen. Broken down the formation of two fault basin. All of the above 4 stages have the characteristics of subsidence and weak extension. Therefore, their functions are shallowly involved in the strata, the basal sedimentation of the basin is not enough, the amplitude of the crustal extension is small and the heat flow value is low. These factors cause poor development of source rocks and / or low evolution of organic matter in the area, which is not conducive to the formation of oil and gas. The exploration of the next step should focus on the middle reaches of the lithosphere, where the strike-slip surface of the boundary faulting is located.