ISSN 1673-8217 CN 41-1388/TE
主管:中国石油化工集团有限公司 主办:中国石油化工股份有限公司河南油田分公司
张参, 刘池洋, 王建强, 宋立军. 2010: 中侏罗世延安期汝箕沟地区与鄂尔多斯盆地沉积关系探讨. 石油地质与工程, 24(02): 13-16+20+5.
引用本文: 张参, 刘池洋, 王建强, 宋立军. 2010: 中侏罗世延安期汝箕沟地区与鄂尔多斯盆地沉积关系探讨. 石油地质与工程, 24(02): 13-16+20+5.
2010: Discussion on sedimentary relationship between Rujigou area and Ordos basin in Yan'an age of mid-Jurassic. Petroleum Geology and Engineering, 24(02): 13-16+20+5.
Citation: 2010: Discussion on sedimentary relationship between Rujigou area and Ordos basin in Yan'an age of mid-Jurassic. Petroleum Geology and Engineering, 24(02): 13-16+20+5.

中侏罗世延安期汝箕沟地区与鄂尔多斯盆地沉积关系探讨

Discussion on sedimentary relationship between Rujigou area and Ordos basin in Yan'an age of mid-Jurassic

  • 摘要: 在对汝箕沟及邻区延安组残存地层分布、煤层特征、层序划分对比、沉积环境、物源及古水流、应力场等系统分析的基础上,探讨了汝箕沟与鄂尔多斯盆地之间的关系。同时汝箕沟地区冲积扇沉积物的存在,指示该区已临近古鄂尔多斯盆地的西北部边缘。故认为在中侏罗纪延安期,汝箕沟地区与鄂尔多斯盆地之间没有明显的地质分割,汝箕沟地区为更靠近盆地西北部边缘,地势由西向东平缓降低的鄂尔多斯盆地的一部分,贺兰山西缘断裂带是鄂尔多斯盆地延安期的西北沉积边界。

     

    Abstract: Based on the systematic analysis with the Yan'an forma-tion in Rujigou area of the remnants stratum distribution,coal formation characteristics,strata sequence classification and correlation,sedimentary environment,material sources and Palaeo-flow direction,stress pattern and so on,com-bined with the basic geological features in north of western margin of Ordos basin,the relationship between Rujigou are-a and Ordos basin has been discussed in this paper. At the same time,the presence of alluvial fan sediments in Rujigou region indicated that the area had been close to the north-western edge of the ancient Ordos basin. There is no obvious geological split between Rujigou area and Ordos basin in Yan 'an age of Mid-Jurassic. The comprehensive analysis showed that Rujigou area is a part of Ordos Basin near to the northern margin and topography declined slowly from west to east,the western margin fault of Helan Mountain is the northwest sedimentary boundary of Ordos basin in Yan'an age.

     

/

返回文章
返回