| 辽河东部凹陷驾掌寺—小龙湾地区沙三段上亚段沉积古地理及聚煤作用分析 |
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| 引用本文： | 汪浩,邵龙义,蔡国刚,陈振岩,李晓光,郭立君.辽河东部凹陷驾掌寺—小龙湾地区沙三段上亚段沉积古地理及聚煤作用分析[J].中国煤炭地质,2010(2):1-6. |
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| 作者姓名： | 汪浩 邵龙义 蔡国刚 陈振岩 李晓光 郭立君 |
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| 作者单位： | 中国矿业大学(北京)地球科学与测绘工程学院;辽河油田勘探开发研究院; |
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| 基金项目： | 中石化海相前瞻性研究项目; 国家973项目(2006CB202202); 国家自然科学基金项目(40672103)资助 |
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| 摘 要： | 利用钻探、测井及地震资料对辽河盆地东部凹陷驾掌寺—小龙湾地区沙河街组三段上亚段进行了沉积环境和聚煤作用分析,编制了各种单因素图件及古地理图,识别出冲积扇、三角洲平原、三角洲前缘和前三角洲以及滨浅湖等古地理单元。分析认为,研究区物源来自东侧东部斜坡带和西侧中央凸起,并在区内沉积中心—驾掌寺—小龙湾凹陷处汇集,在适宜的气候、缓和的构造背景、适中的沉降幅度、较少的碎屑输入条件下,有一定水体深度的三角洲平原分流间湾沼泽区是成煤的有利地带,巨厚煤层分布于小龙湾地区的小14井、小5井以及小31井一带。
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| 关 键 词： | 聚煤作用 辽河东部凹陷 古近系 沙河街组 三角洲 |
Sedimentary Paleogeography and Coal Accumulation in Upper Part of Member III, Shahejie Formation in Jiazhangsi-Xiaolongwan Area, Eastern Liaohe Sag |
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| Wang Hao,Shao Longyi,Cai Guogang,Chen Zhenyan,Li Xiaoguang , Guo Lijun.Sedimentary Paleogeography and Coal Accumulation in Upper Part of Member III, Shahejie Formation in Jiazhangsi-Xiaolongwan Area, Eastern Liaohe Sag[J].Coal Geology of China,2010(2):1-6. |
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| Authors: | Wang Hao Shao Longyi Cai Guogang Chen Zhenyan Li Xiaoguang Guo Lijun |
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| Institution: | Wang Hao1,Shao Longyi1,Cai Guogang1,2,Chen Zhenyan2,Li Xiaoguang2 , Guo Lijun1(1.School of Geoscience , Surveying Engineering,CUMTB,Beijing 100083,2.Research Institute of Exploration , Exploitation,Liaohe Oil Company,CNPC,Panjin,Liaoning 124010) |
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| Abstract: | Sedimentary paleogeography and coal accumulation were analyzed for the upper part of Member III,Shahejie Formation in the Jiazhangsi area of the eastern Liaohe sag,single-factor plots and paleogeographic map were drawn and palaogeographic units,including alluvial fan,delta plain,delta front,prodelta and shore-shallow lacustrine were recognized.Two provenances deriving from the eastern structural slope to the east and the central uplift to the west provided sediments into the Jiazhangsi-Xiaolongwan depressio... |
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| Keywords: | coal accumulation eastern Liaohe sag Paleogene System Shahejie Formation delta |
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