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YM1-2构造带位于塔北隆起西部英买力低凸起构造单元内,整体表现为一寒武系盐上大型穹隆背斜,形成于海西期,定型于印支期。期间经历多期构造运动,发育有大量断裂,构造样式多样,成因机制也非常复杂。通过蚂蚁追踪等技术的应用,对YM1-2三维区断裂进行精细解释,能有效指导对断裂的刻画与认识。首次把研究区内所有断裂划分为4期,即中加里东期、早海西期、晚海西期、海西—印支期,并对每期断裂的形成机制进行深入分析,为断裂与油气成藏关系的研究提供重要依据。
The YM1-2 tectonic belt is located in the Yingbu low bump tectonic unit in the western part of Tabei uplift. The whole YM1-2 tectonic belt is a large Cambrian salt dome anticlinal formed in the Hercynian period and shaped in Indosinian. During the period of multi-period tectonic movement, a large number of faults are developed, and the structure and style are diverse, and the formation mechanism is also very complicated. Through the application of ants tracking and other techniques, the detailed interpretation of YM1-2 3D fracture can effectively guide the description and understanding of faults. For the first time, all the faults in the study area are divided into four phases, that is, the Middle Caledonian, the Early Hercynian, the Late Hercynian, the Hercynian-Indosinian. The formation mechanism of each fault is analyzed in depth, The relationship between hydrocarbon accumulation provides an important basis for the study.