1) Yan an Formation coal-bed
延安组煤
2) Yan'an Formation
延安组
1.
Pre-Jurassic palaeogeomorphic control on the hydrocarbon accumulation in the Lower Yan'an Formation in southern Ordos Basin;
鄂尔多斯盆地南部前侏罗纪古地貌对延安组下部油藏的控制作用
2.
Relationship between Uranium Anomaly and Depositional System of Yan'an Formation,North-east Margin of Ordos Basin;
鄂尔多斯盆地东北部延安组铀异常与沉积体系的关系
3.
Genetic Mechanism and Development Periods of Fracture in Yanchang and Yan'an Formation of Western Mahuangshan Block in Ordos Basin
鄂尔多斯盆地麻黄山西区块延长、延安组裂缝成因及期次
3) Yanan Formation
延安组
1.
High Resolution Sequence Stratigraphic Characteristics of Yanan Formation InHuanxian County of Ordos Basin;
鄂尔多斯盆地环县地区延安组高分辨率层序地层学特征
2.
Sequence Stratigraphic Division of Jurassic Yanan Formation in West Ordos Basin;
鄂尔多斯分地西缘延安组层序地层划分
3.
The High-Resolution Sequence Stratigraphy Feature of Yanan Formation in Yanan Area, Ordos Basin;
鄂尔多斯盆地中部延安地区中侏罗统延安组高分辨率层序地层研究
4) Yan an Formation
延安组
1.
Use of natural gamma-ray well log to study sedimentary cycles of Yan an Formation in Eastern Gansu, Ordos Basin, China;
应用自然伽马曲线反演陇东地区延安组沉积旋回
2.
Exploration potential of Jurassic Yan an Formation in Mahuangshan region of south Ordos Basin;
麻黄山西地区侏罗系延安组勘探前景分析
3.
Sequence stratigraphy analysis of Yan an Formation in the southwest of Ordos Basin,China;
鄂尔多斯盆地西南缘延安组层序地层分析
5) the V-rock member of Yan'an Formation
延安组第Ⅴ岩段
6) Yan 'an Formation
侏罗系延安组
1.
The main oil-bearing layer is Jurassic Yan 'an Formation, and it was formed on the background which is the temporary uplift of indosinian movement.
安塞油田位于鄂尔多斯盆地陕北斜坡的中东部偏南处是鄂尔多斯盆地一个重要的产油区，侏罗系延安组作为安塞油田重要的含油层系之一，沉积地层形成于晚三叠世的印支构造运动，其背景是盆地的短暂抬升，该区油气资源的勘探与开发对长庆油田的发展有很重要的意义。
补充资料：煤的镜质组反射率
煤的镜质组反射率
reflectance of vitrinite in coal
mei de如夕hjzll fan劝el五煤的镜质组反射率(r eflectauceofvitrinite in eoal)镜质组在绿色光(几~546lun)中的反射光强相对于垂直入射光强的百分比。是煤岩学的研究内容之一口煤的镜质组反射率是表征煤化度的重要指标。各种煤若显微组分的反射率均随煤化度加深而增大，这反映了煤的内部由芳香稠环化合物组成的核的缩聚程度在增长，碳原子的密度在增大。但各煤岩显微组分的反射率随煤化度变化的速度有差别，其中以镜质组的变化快而且规律性强。镜质组是煤的主要组分，颗粒较大而表面均匀，其反射率易于测定。而且，镜质组反射率与表征煤化度的其他指标(如挥发分、碳含量)不同，它不受煤的岩相组成变化的影响，因此是公认的较理想的煤化度指标，尤其适用于烟煤阶段。中国煤的镜质组反射率与干燥无灰基挥发分(见煤的分析)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条