古地理学报 ›› 2009, Vol. 11 ›› Issue (6): 611-627. doi: 10.7605/gdlxb.2009.06.002

• 岩相古地理学及沉积学 • 上一篇    下一篇

陆表海碎屑岩—碳酸盐岩混积层系沉积相研究——以鄂尔多斯东北部大牛地气田为例

郭书元1,2 张广权1 陈舒薇1   

  1. 1 中国石油化工股份有限公司石油勘探开发研究院, 北京 100083
    2 中国石油化工股份有限公司华北石油局,河南郑州 450006
  • 收稿日期:2009-04-10 修回日期:2009-06-01 出版日期:2009-12-01 发布日期:2009-12-01
  • 作者简介:郭书元, 男,1937年生,1960年毕业于北京地质学院普查系,教授级高级工程师,从事地层古生物、沉积、构造、盆地分析和石油地质工作。

Study on sedimentary facies of mixed clastic-carbonate sediments strata system in epicontinental sea ——A case of Daniudi Gasfield in northeastern Ordos

Guo Shuyuan1,2, Zhang Guangquan1, Chen Shuwei1   

  1. 1 Research Institute of Petroleum Exploration & Production,SINOPEC, Beijing 100083
    2 North China Petroleum Bureau, SINOPEC,Zhengzhou 450006,Henan
  • Received:2009-04-10 Revised:2009-06-01 Online:2009-12-01 Published:2009-12-01
  • About author:Guo Shuyuan, born in 1937,graduated from Geology Institute of Beijing in 1960, is a professorial engineer, and is engaged in palaeontology and stratigraphy, sedimentology, structure, basin analysis and petroleum geology.

摘要: 陆源碎屑岩和碳酸盐岩的混合沉积是陆表海重要的沉积现象,反映了其沉积特征。鄂尔多斯东北部大牛地气田本溪组和太原组是典型的陆表海碎屑岩—碳酸盐岩混积层系。结合区域地质研究,建立了陆表海碎屑岩—碳酸盐岩混积层系的沉积相模式。根据华北晚古生代聚煤盆地的地质背景和沉积演化过程,认为大牛地气田本溪组、太原组是陆表海碎屑滨岸—碳酸盐岩台地混积体系和海岸平原沉积体系:本溪组下段为碎屑滨岸相局限浅海亚相,上段为碳酸盐岩台地相和碎屑滨岸相;太原组下段为三角洲相和碎屑滨岸相→碎屑滨岸相;中段为盆控型泥炭沼泽相→碳酸盐岩台地相和碎屑滨岸相;上段为三角洲相和碎屑滨岸相→碳酸盐岩台地相和碎屑滨岸相→三角洲相和碎屑滨岸相→碳酸盐岩台地相和碎屑滨岸相。

关键词: 鄂尔多斯, 大牛地气田, 陆表海, 碎屑岩—碳酸盐岩台地混积, 盆控型泥炭沼泽

Abstract: The mixed clastic-carbonate sediment is the important sediment phenomenon which can react characteristic deposits of the epicontinental sea. The Benxi and Taiyuan Formations in the Daniudi Gasfield located in the northeast of Ordos are typical series of the mixed clastic-carbonate sediments deposited in the epicontinental sea. According to these features on lithologic assemblage with the study on regional geology, the pattern has been first created on sedimentary facies of the mixed clastic-carbonate sediments in the epicontinental sea in this paper. Sedimentary environment of Benxi and Taiyuan Formations is numerously considered as barrier clastic coastal environment. Based on geologic setting and sedimentary evolutionary process of the coal bearing basin in North China during the Late Paleozoic,the Benxi and Taiyuan Formations in Daniudi Gasfeild belong to epicontinental sea clastic coastal-carbonate platform mixed depositional system and coastal plain depositional system in this paper. The lower member of the Benxi Formation of Upper Carboniferous belongs to restricted clastic coastal facies and upper member belongs to carbonate platform and clastic coastal facies. The Lower member of the Taiyuan Formation of Upper Carboniferous-Lower Permian belongs to delta facies and clastic coastal facies→clastic coastal facies,the middle member belongs to basin-controlled peat marsh facies→carbonate platform facies and clastic coastal facies, the upper member belongs to delta facies and clastic coastal facies→carbonate platform facies and clastic coastal facies→delta facies and clastic coastal facies→carbonate platform facies and clastic coastal facies.

Key words: Ordos, Daniudi Gasfield, epicontinental sea, mixed clastic-carbonate sediments strata system, basin-controlled peat marsh

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