Research on the depositional environment and resources potential of the oil shale in the chang 7 member , triassic yanchang formation in the ordos basin 鄂尔多斯盆地三叠系延长组长7油层组油页岩沉积环境与资源潜力研究
From these characteristics of biostratigraphy , lithostratigraphy and chronostratigraphy , the oil shales in shuanghu area are similar to those in early toarcian europe 从生物地层、岩石地层、年代地层来看，双湖地区的油页岩与欧洲早toarcian期广泛分布的黑色页岩有很好的可对比性。
Although the resource base of other fossil fuels such as oil sands , heavy oil and oil shale is very large , they are likely to supply only small amounts of energy before the year2000 虽然其他的矿物燃料如油砂、重油和油页岩的蕴藏量很大，但在2000年前，似乎只能供应能量中的一小部分。
Wudaoliang group is grayish - white , yellow - grey , dark - grey ash rock , which interbeded with the conglomerate , sandstone , a little amount mudstone , oil shale with unconsolidated sand mud rock 五道梁群以灰白色、灰黄色灰岩为主，含有砾岩、砂岩，夹有少量泥岩、油页岩和未固结砂泥沉积。
Additional transfer included the alaska , bonneville , southeastern , and southwestern power marketing administrations from the interior department and the navy oil reserves and oil shale reserves from the department of defense 另外，还包括从内政部转移来的阿拉斯加、波尼维尔、东南和西南地区电力市场管理局，以及从国防部转来的海军石油储备局和石油页岩储备局。
Except for plenty of ammonite fossiles , abundant coccotithophorid is also found but simple species variation . therefore , we put forward that black shale deposition , especially the oil shales may have the relationship with the bloom of coccotithophorid of palaeo - oceanographical phytoplankton C n原于比与6 ’七toc曲线的变化趋势一致，说明5 ’七toc异常受到有机质组分变化的控制，即受陆源高等植物与海洋水生生物相对输人量的变化所控制。
Through the analysis of the stratigraphy and sedimentary facies of the research areas , the description model between the stratigraphic framework and deposite environment can be set up firstly by the transition from the " three horizons sandstone with two intercalated limestone horizons ' mn yanshiping area to shale and marl in amdo - zigetang co , and to oil shale in bilong co , then by the transition of the shallow water platform facies to the deep water continental shelf , slope , and to the deep water basin 通过对研究区地层和沉积相分析，建立起一个从北向南由雁石坪地层类型“三砂夹两灰”过渡为安多?兹格塘错地层类型泥页岩、泥灰岩，最后到比洛错地层类型黑色油页岩，由浅水台地相过渡到深水陆棚、斜坡，最后到深水盆地相的地层格架与沉积环境解释模式。
