李健,蒲丽君,刘娜
LI Jian1,PU Lijun2,LIU Na2(1.Gansu Coal Resources Development and Investment Co.Ltd

• 1:甘肃省煤炭资源开发投资有限责任公司
• 2:甘肃煤炭地质勘查院

摘要(Abstract)：

通过对平山湖含煤区中侏罗统含煤性特征、地层厚度、煤层厚度以及展布规律的研究,结合构造、沉积环境以及物源供给等方面进行综合分析,结果表明:平山湖含煤区中侏罗统含煤性呈中南部好,向四周逐渐变差的趋势,煤系总体沿北西走向呈条带状分布,煤层厚度总体上沿走向(NW-SE)变化不大,沿倾向向两侧逐渐变薄;"两隆三凹"的构造形态和扇三角洲沉积环境决定了中侏罗统煤系的分布状态;碎屑物的补给程度与地层厚度呈正比,二者共同影响了煤层垂向上的发育状态。
In order to know middle Jurassics coal-bearing property,by research of coal-bearing properties,stratum thickness,coal-bearing strata thickness and distribution patterns,we analyzed structural,sedimentary environment and material supply and so on.The results showed that middle Jurassics coal-bearing property of central and southern area is good,however,became worse gradually around.Coal-bearing strata had a banding distribution along the northwest direction;The change of coal-bearing strata thickness is little along stri ke(northwest-southeast),and it get thinner along dip.The distribution of middle Jurassic coal-bearing strata was determined by structural form of the two uplift zones and three depression zones as well as fan delta sedi mentary environments;The supply of classic materials was of positive correlation with the strata thickness.Both of them affected the vertical development state of the middle Jurassic coal-bearing strata.

关键词(KeyWords)： 中侏罗统;含煤性;影响因素;沉积环境;平山湖
Middle Jurassic;coal-bearing property;influencing factors;sedimentary environment;Pingshanhu.

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 李健,蒲丽君,刘娜
LI Jian1,PU Lijun2,LIU Na2(1.Gansu Coal Resources Development and Investment Co.Ltd

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