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亚洲东北部的沉积盆地绝大多数为海相或近海陆架盆地,它们已被证实或可能存在油气,且集中分布在西太平洋过渡带。本文分析了这些盆地中不同级别的油气目标定位的条件和特点,其中包括一个区域性可产层,这些条件和特点与过渡带的构造和演化有关。该带的鄂霍次克—白令段(Okhotsk—Beringian)的主要单元有:弧—槽体系构造、弧后盆地、与褶皱作用和倾伏相关的鄂霍次克巨型拗陷、与地堑相关的拗陷、白令准板块、具活动边缘的被动构造单元、堪察加(Kamchat-ka)、萨哈林(Sakhalin)和科里亚克(Koryak)高地褶皱的新生代构造。本文介绍根据资源丰度的盆地分类,再根据其构造、演化及过渡带总体地貌成因特征确定盆地归属于上述哪些主要构造单元。
The vast majority of sedimentary basins in northeastern Asia are marine or offshore shelf basins that have been proven or are likely to have hydrocarbons and are concentrated in the western Pacific transitional zone. This paper analyzes the conditions and characteristics of different levels of hydrocarbon targets in these basins, including a regional deliverable layer, which is related to the structure and evolution of the transitional zone. The major elements of the Okhotsk-Beringian belt include arc-trough system, back-arc basin, Okhotsk mega-depression associated with fold and plunge, Related depressions, Beringic plates, passive tectonic units with active edges, the Cenozoic tectonics of the Kamchat-ka, Sakhalin and Koryak highlands. This paper presents basin classification based on abundance of resources, and then determines which of the major tectonic units belong to the above-mentioned tectonic units based on its tectonic and evolution characteristics and geomorphic characteristics of the transitional zone.