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高分辨率层序地层学研究的关键是等时界面的确定。前人提出高频基准面转换旋回分析和用关键界面(洪泛面 )对比分析来确定等时性对比。以黄骅坳陷板桥凹陷板中东油田板 4上油组深水浊积扇沉积为例 ,就湖盆内事件沉积的特点 ,提出结合洪泛面和事件沉积界面 ,结合异旋回和自旋回来开展高分辨率层序地层对比。事件沉积破坏了正常沉积的规律性 ,但它本身却是良好的等时界面。异旋回特征和自旋回特征互相补充 ,提高了高分辨率层序对比的等时性和可行性。图 2参 4(邹冬平摘 )
The key to high-resolution sequence stratigraphy research is the determination of isochronous interface. The predecessors proposed a high-frequency reference plane conversion cycle analysis and the key interface (flood surface) comparative analysis to determine isochronism contrast. Taking the sedimentary facies of deep-water turbidite fan in Ban4 oil-bearing formation of Middle East Oilfield in Banqiao Depression of Huanghua Depression as an example, the characteristics of sedimentary events in the lake basin are proposed. Combining flood surface and event depositional interface, combining different gyration and spinback High-resolution sequence stratigraphy contrast. Event deposition destroyed the normal deposition of regularity, but it is itself a good isochronous interface. Heterocyclical and spin-back features complement each other, improving the isochronicity and feasibility of high-resolution sequence comparisons. Figure 2 Senate 4 (Zou Dongping pick)