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在控制着陕甘宁盆地中生界尤其是侏罗系油气聚集和分布的许多因素中,印支末期的侵蚀面及其地貌有特别重要的意义。它有别于我国东部的潜山地貌,是找油中值得注意的另一种发育于构造稳定区的古地貌类型。本文将对本区某些涉及古地貌的油气分布规律问题,予以讨论。一、基本地质情况在现今构造上,陕甘宁盆地除周缘有几个地堑外,中部广大地区表现为一个大型的
Among the many factors controlling the oil and gas accumulation and distribution in the Mesozoic, especially the Jurassic, in the Shan-Gan-Ning basin, the erosion surface and its topography in the late Indosinian period are of particular importance. It is different from the buried hill landform in the eastern part of China and is another palaeogeomorphic type worthy of attention in the structural stability area. This article will discuss some of the laws governing the distribution of oil and gas in ancient landforms in this area. First, the basic geological conditions In today’s structure, the Shanxi-Gansu-Ningxia basin in addition to several peripheral graben, the vast central region showed a large