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    中亚及邻区沉积盆地形成演化与含油气远景

    Formation, Evolution and Petroleum Prospects of Central Asia and its Adjacent Regions

    • 摘要: 提要:中亚及邻区位于亚洲大陆古老地块之间的巨型构造活动带,在这个地区发育众多类型的沉积盆地。在形成演化机制上,发育有裂谷盆地、前陆盆地、克拉通盆地等单型盆地和这些单型盆地组成的叠合盆地。在形成时代上,发育前寒武纪沉积盆地、古生代沉积盆地和中新生代沉积盆地。这些不同时代不同类型的沉积盆地发育在不同的大地构造背景上,基底性质、成盆机制、沉降特征、构造特征及含油气性等具有较大的差别。沉积盆地类型和形成时代与油气分布规律和含油气远景密切相关,拉张裂谷型沉积盆地油气资源潜力较大,克拉通裂谷-坳陷型盆地具有一定的油气资源潜力。

       

      Abstract: Abstract:Central Asia and its adjacent regions are located along a huge tectonic active belt between old blocks of Asian continent. Basins of various types are developed in this area. In the aspect of formation and evolution mechanism, single type basins like rift basins, foreland basins, and craton basins as well as their superimposed basins are developed. In formation ages, Precambrian, Palaeozoic and Mesozoic-Cenozoic sedimentary basins are developed. Sedimentary basins of different types and ages are developed in different geotectonic backgrounds. The properties of their basements, basin formations, subsidence features, and structural and petroliferous characteristics show remarkable differences. The types and formation ages of the sedimentary basins are closely related to hydrocarbon distribution regularity and petroleum prospects. Rift valley sedimentary basins seem to have great potential of petroleum resources, whereas craton rift and depression basins have certain potential of petroleum resources.

       

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