【作者】 李江涛；

【导师】 李增学； 余继峰；

【作者基本信息】 山东科技大学 ， 古生物学与地层学， 2005， 硕士

【摘要】 鄂尔多斯盆地蕴藏着丰富的煤、石油、天然气和砂岩型铀矿等多种能源矿产。在纵向上,煤聚积于石炭—二叠系和侏罗系,石油和铀矿主要分布在侏罗系,天然气则储集在奥陶系和二叠系。在平面上,石油位于盆地中南部,铀矿位于盆地边部,天然气和煤炭资源在全盆地均有分布。多种能源矿产存在油中气、煤中气、上气下油、油中铀、煤中铀、煤中油以及独立富集等7种共存富集形式。在盆地发展演化过程中,在不同的构造单元叠置了不同的能源组合类型,包括煤、天然气与铀组合,煤与天然气组合,煤与石油、天然气组合,煤、石油、天然气与铀组合等4种组合类型,并且表现出某些相关性。鄂尔多斯盆地多种能源矿产的共存富集是盆地构造演化、沉积环境和热演化综合作用的必然结果。构造演化格局决定盆地的性质以及内部充填序列,并且控制着煤、油气和铀在盆地中的分布;沉积环境则是矿产富集的基础,不同沉积环境和沉积相形成的矿产各异;盆地的热演化,则是促进了煤、油气和铀的生成、聚积以及消亡。更多还原

【Abstract】 Ordos basin is prolific in many energy resources, such as coal, oil, gas, sandstone type of uranium, etc. Vertically, coal distributes in Permo-Carboniferous and Jurassic; oil and uranium distributes mainly in Jurassic while gas distributes in Ordovician and Permian. Laterally, oil distributes in the center and southern parts of the basin, uranium deposits are located at the edges of the basin, natural gas and coal distribute in the whole basin. There are seven association and accumulation form of different energy resources, namely gas in oil, gas in coal, gas enriched in the upper while oil enriched in the lower, uranium in oil, uranium in coal, oil in coal and independent accumulation separately. During the development of the basin, there are four kinds of energy resource combination types which are relative: combination of coal, gas and uranium, combination of coal and gas, combination of coal, oil and gas, combination of coal, oil, gas and uranium, because of the overlap of different tectonic units. Tectonic evolution, sedimentary environment and hot evolution together cause the association and accumulation of different energy resource in Ordos basin. The tectonic evolution framework controls the characteristics of the basin, the internal sequences of basin-fill and the distribution of coal, oil, gas and uranium. Depositional environment is the base of mineral accumulation, that is to say, minerals are differentiated because of sedimentary environment and sedimentary facies; the hot evolution of basin contributes to the formation, accumulation and disappearance of coal, oil, gas and uranium.更多还原