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缅甸中央岛弧带地层变形强烈、岩性复杂、横向对比困难,严重制约了油气勘探。利用地震、测井、录井及分析化验等资料识别地层界面,并结合古生物、锆石测年证据判别地层年代,首次建立了研究区的地层格架。缅甸中央岛弧带地层可划分为白垩系、古新统、始新统、中新统和上新统五套,描述了每套地层的识别特征并探讨了地层发育的控制因素,认为研究区地层发育受到构造作用、海平面变化、沉积物供给及火山活动等多种因素的影响。
The strata in the central island arc belt of Myanmar have strong deformation, complex lithology and horizontal contrast, which severely restrict oil and gas exploration. The stratigraphic framework of the study area was established for the first time by identifying the formation interface using seismic data, well logging data, logging data and analytical laboratory data, and by combining the dating data of paleontology and zircon dating. The central island arc belt in Burma can be divided into five sets of Cretaceous, Paleocene, Pliocene, Miocene and Pliocene. The identification features of each set of strata are described and the controlling factors of stratigraphic development are discussed. It is considered that the study area Stratigraphic development is affected by many factors such as tectonism, sea level change, sediment supply and volcanic activity.