摘要
以经典沉积学理论为基础,结合现场工作的成果,对浑江煤田石炭—二叠系的沉积环境和聚煤模式进行了研究。研究结果表明:研究区石炭—二叠系沉积环境是一个完整的由海侵到海退的连续沉积过程。太原组煤层聚煤模式有5种,分别为泻后泥炭坪成煤、岛后泥炭坪成煤、潮汐三角洲泥炭坪成煤、支流间湾泥炭坪成煤、混合泥炭坪成煤;山西组1号、2号、3号煤层均形成河流体系和河流—湖泊复合体系。
Based on classic sedimentological theory,combined with field work results,have studied sedimentary environment and coal-accumulation model in the Permo-Carboniferous Hunjiang coalfield.The results indicated that： the Permo-Carboniferous sedimentary environment of the study area is an intact continuous depositional course from transgression to regression.Coal seams in the Taiyuan formation have 5 coal-accumulation models： back-lagoon peat flat coal-forming,back-island peat flat coal-forming,tidal delta peat flat coal-forming,interdistributary bay peat flat coal-forming and mixed type peat flat coal-forming;while the Nos.1,2 and 3 coal seams in the Shanxi Formation are all formed in fluvial system or fluvial-lacustrine composite system.
出处
《中国煤炭地质》
2010年第4期23-27,共5页
Coal Geology of China
基金
<中国煤炭资源潜力评价>的<吉林省浑江煤田潜力评价示范区>
关键词
浑江煤田
沉积环境
聚煤规律
Hunjiang coalfield
sedimentary environment
coal-accumulation pattern
