1) gold in coal formation
煤系金
2) coal measures
煤系
1.
Genetic potential and geochemical features of pyrolysis oils of macerals from Jurassic coal measures, Northwest China;
中国西北侏罗纪煤系显微组分生烃潜力、产物地球化学特征及其意义
2.
Biomarker and its implication of pyrolysis oils of macerals from Jurassic coal measures,Northwest China;
中国西北侏罗纪煤系显微组分热解油生物标志物特征及其意义
3.
Contribution of various coal measures source rocks to oil and gas reservoir formation;
不同类型煤系烃源岩对油气藏形成的作用
3) coal series
煤系
1.
The bentonite in coal series is very rich.
煤系地层中膨润土储量相当丰富,绝大部分品质优良。
2.
1)Evolution degree of hydrocarbon source rocks is relatively lower and the Longtan coal series are still dominated by soft coal.
湘中坳陷海相油气勘查区块与南方其他区块相比,具有较为明显的成藏条件优势:1)烃源岩演化程度相对最低,龙潭煤系现今仍以烟煤为主;2)测水、龙潭2套煤系在区域上连片分布,封盖能力较强,钻井证实其下油气显示异常活跃;3)湘中在古生代时地处赤道附近,广泛发育的风暴岩有利于油气及时运移与聚集;4)早期形成的江南雪峰古隆起为油气藏的保存和重建创造了有利条件。
4) coal-measures
煤系
1.
The nonmetallic mineral resources characteristics in the coal-measures and its development-utilization countermeasure and suggestion in Jilin province;
吉林省煤系中非金属矿产特征及开发利用对策与建议
2.
According to the general feasures and the characteristics of the rock combination of Fangzi coal-measures and the data of lithofacies and paleogeography, the authors put forward the viewpoint that Fangzi coal-measures were formed in front of bajada and that the coal-bearing features are related to the location of tectonic area.
根据坊子煤系的一般特征及岩石组合特点,结合岩相古地理资料,提出了坊子煤系主要形成于山前扇扇缘部位,其含煤性与煤系所处的构造位置有关的观点。
5) coal-bearing strata
煤系
1.
In the coal－bearing strata of Dagaozhuang mine field in Jiyu coal－field of Tianjin city,there associated multi－kinds of rare element,and the Ga of them primarily rich in No.
天津蓟玉煤田大高庄井田煤系中煤伴生有多种稀有元素，其中镓主要富集在9煤及其直接底板岩石之中，品位>30mg/kg，而且镓的含量与煤中粘土矿物有关。
2.
Intercalation complexes of kaolinite in the coal-bearing strata were prepared with potas-sium acetate.
用煤系高岭石与醋酸钾合成夹层复合体，并利用热分析（TA）、红外光谱（IR）和X射线衍射（XRD）等手段研究其热行为特征。
6) coal measure
煤系
1.
The petroleum generation model for organic matterfrom Jurassic coal measure, Northwest China;
西北地区侏罗纪煤系有机质成烃模式
2.
Taking the example of Shizibao mine field,this paper describes features of Ma'an coal measures.
通过对井田地质特征、煤系地层、含煤性及控煤特征的简要分析,阐明煤层与煤系地层发育的正消长关系,断定马鞍煤系找煤方向主要应针对煤系地层厚的地段。
补充资料：含煤岩系
| 含煤岩系 coal-bearing strata 一套含有煤层或煤线的沉积岩系。又称煤系、含煤沉积或含煤建造。构成含煤岩系的沉积岩大都呈灰、灰绿、灰黑和黑色，主要是各种粒度的砂岩以及粉砂岩、泥岩、灰质泥岩和煤组成，砾岩、粘土岩和石灰岩也常见，有时也见到铝质岩、油页岩、硅质岩和火山碎屑岩等。含煤岩系一般富含动、植物化石。有时还可见到多种碳酸盐结核、硫铁矿结核以及硅质结核等。含煤岩系的形成时代从古生代（主要是晚古生代）至第三纪。含煤岩系在世界各大洲的许多地方都有发现。含煤岩系的变化，主要受控于它形成时的古构造和古地理环境。不同时代、不同地区的含煤岩系，其特征不同。含煤岩系的厚度由几米至几十米甚至上万米，含煤层数由一至一二百层不等，煤层厚度相差也极大，有的厚度超过100米。 |
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参考词条