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中文摘要：
在波数域中处理孙吴—嘉荫剖面重力资料，使用常密度单界面位场异常反演法计算出结晶基底起伏界面深度，并利用Hilbert变换计算重力归一化总梯度及其相位，得到归一化总梯度等值线和相位图。根据孙吴—嘉荫剖面布格异常特征及归一化总梯度相位曲线特征，划分了16条断裂，反演了该剖面结晶基底起伏界面，并对结晶基底构造特征进行了分析，将孙吴—嘉荫盆地划分为4个凹陷区和4个隆起区，确定逊克凹陷带、结列河凹陷带和乌拉嘎凹陷带为油气远景区。
英文摘要：
The authors dealt with how to process the gravimetric data of Sunwu - Jiayin profile in wavenumber field by using normal density single interface potential anomalies inversion to calculate the depth of boundary interface of the crystalline basement and the normalized full gradient of gravity anomalies and the phase of gravity anomalies based on Hilbert＇s transform method, and obtained the chorisogram phase diagram. According to these characteristics and Bouguer gravity anomaly, sixteen faults were marked off, and the boundary interface of the crystalline basement of the profile was reversed. By analyzing the characteristics of crystalline basement structure, the authors divided the Sunwu- Jiayin basin into four depressions and four uplifts, confirmed Xunke, Jieliehe and Wulaga depressions to be gas-oil prospective areas.
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