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世界地质 2023, 42(2) 309-317 DOI: ISSN: 1004-5589 CN: 22-1111/P

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	充填演化
	沉积体系
	断陷层
	长岭断陷
	松辽盆地
	本文作者相关文章
	韩昊天
	贾可心
	薛松
	屈伟伟
	李立立
	楼仁兴
	PubMed
	Article by HH
	Article by Jia K
	Article by Xue S
	Article by Qu W
	Article by Li L
	Article by Lou R

松辽盆地长岭断陷构造演化及沉积充填特征

韩昊天1 , 贾可心1 , 薛松1 , 屈伟伟1 , 李立立1 , 楼仁兴2

1. 中国石油吉林油田分公司勘探开发研究院, 吉林松原 138000;

2. 吉林大学地球科学学院, 长春 130061

摘要：通过对长岭断陷岩心? 录井? 测井等资料的系统分析, 结合全区三维地震精细解释, 恢复了研究区断陷期岩相古地理面貌, 识别出了湖泊? 辫状河三角洲? 扇三角洲和火山相等 4 种岩相类型, 并进一步划分出了 9 种亚相和若干种微相? 同时, 在构造演化分析的基础上, 对长岭断陷断陷期的沉积演化过程及充填特征进行了深入研究? 研究表明: 长岭断陷断陷期整体可划分为初始断陷期? 快速断陷期和断陷萎缩期, 其内部进一步识别出了火石岭末期? 沙河子末期两期局部隆升和营城末期的构造反转? 上述 6 个构造阶段分别对应了断陷初期充填阶段 (火石岭期)? 断陷初期剥蚀夷平阶段 (火石岭末期)? 快速断陷期充填阶段 (沙河子期)? 快速断陷期挤压剥蚀阶段 (沙河子末期)? 断陷萎缩期充填阶段 (营城期) 和断陷萎缩期挤压剥蚀阶段 (营城末期)?

关键词：充填演化沉积体系断陷层长岭断陷松辽盆地

Structural evolution and sedimentary filling characteristics of Changling fault depression in Songliao Basin

HAN Haotian 1 , JIA Kexin 1 , XUE Song 1 , QU Weiwei 1 , LI Lili 1 , LOU Renxing 2

1. Exploration and Development Research Institute of PetroChina Jilin Oilfield Company, Songyuan 138000, Jilin, China;

2. College of Earth Sciences, Jilin University, Changchun 130061, China

Abstract: Through systematic analysis of drill core, logging and other data from Changling fault depression, combined with the detailed interpretation of 3D seismic data in the whole area, the lithofacies and paleogeography of the study area during the fault depression period were restored. Four lithofacies types such as lakes, braided river deltas, fan deltas, and volcanoes have been identified, and nine subfacies and several microfacies have been fur? ther subdivided. At the same time, based on the analysis of the structural evolution of Changling fault depression, the sedimentary evolution process and filling characteristics during the fault depression period are deeply studied. The research results show that the overall fault depression period of the study area can be divided into initial fault depression, rapid fault depression, and fault depression shrinkage periods. The internal part can further identify the local uplift at the end of Huoshiling Formation and Shahezi Formation, as well as the structural inversion at the end of Yingcheng Formation. The six structural stages mentioned above are corresponding to the initial filling stage of the fault depression (Huoshiling Formation), the initial denudation and leveling stage of the fault depression (the end of Huoshiling Formation), the filling stage of the rapid fault depression period (Shahezi Formation), the com?pression and denudation stage of the rapid fault depression period (the end of Shahezi Formation), the filling stage of the fault depression shrinkage period (Yingcheng Formation) and the compression and denudation stage of the fault depression shrinkage period (the end of Yingcheng Formation), respectively.

Keywords: filling and evolution sedimentary system fault depression layer Changling fault depression Songliao Basin

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