| 断陷湖盆陡坡带陆相层序地层的“沉积滨线坡折”问题探讨? |
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| 引用本文： | 胡受权,郭文平,颜其彬,刘树根,童崇光,杨凤根.断陷湖盆陡坡带陆相层序地层的“沉积滨线坡折”问题探讨?[J].古地理学报,2000,2(4):20-29. |
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| 作者姓名： | 胡受权 郭文平 颜其彬 刘树根 童崇光 杨凤根 |
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| 作者单位： | 中山大学地球科学系;
南京大学地球科学系;
西南石油学院勘探系 ;
成都理工学院石油系 |
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| 基金项目： | “油气藏地质及开发工程”国家重点实验室开放基金项目 (PLN992 2号 )，广东省自然科学基金资助项目 (994113号 )联合资助 |
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| 摘 要： | 本文在分析断陷湖盆陡坡带不同构造部位的可容空间变化规律及其沉积响应特征的基础上，探讨了断陷湖盆陡坡带参照井选取的可容空间机理，并阐明了参照井的选择原则；根据参照井处的沉积相迁移特征及体系域叠置样式，建立了在参照井的背景下，Ⅰ型与Ⅱ型陆相层序划分及其层序界面判识的标准，以及低水位体系域（LST）、水进体系域（TST）、高水位体系域（HST）及水退体系域（RST）的识别模式。本文以泌阳断陷双河～赵凹地区下第三系核三上段为例，采用泌207井为参照井，对研究区目的层段开展了断陷湖盆陡坡带陆相层序地层学的尝试性研究，并编制了研究区目的层段的陆相层序地层等时框架模式。研究结果表明，采用选取参照井的办法，可以有效地解决断陷湖盆陡坡带陆相层序地层分析中的“沉积滨线坡折”问题。
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| 关 键 词： | 断陷湖盆 陡坡带 层序地层学 老第三纪 沉积滨线坡折 参照井 |
| 修稿时间： | 2000年4月14日 |
STUDY ON DEPOSITIONAL SHORELINE BREAK FOR TERRIGENOUS SEQUENCE STRATIGRAPHY ALONG THE STEEP SLOPE ZONE OF FAULT-DEPRESSED LACUSTRINE BASIN |
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| Hu Shouquan,Guo Wenping.STUDY ON DEPOSITIONAL SHORELINE BREAK FOR TERRIGENOUS SEQUENCE STRATIGRAPHY ALONG THE STEEP SLOPE ZONE OF FAULT-DEPRESSED LACUSTRINE BASIN[J].Journal of Palaeogeography,2000,2(4):20-29. |
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| Authors: | Hu Shouquan Guo Wenping |
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| Institution: | Hu Shou-quan & Guo Wen-ping (Department of Earth Sciences , Zhongshan University , Guangzhou , 510275);
Yang Feng-gen (Department of Earth Sciences , Nanjing University , Nanjing , 210093);
Yan Qi-bin (Petroleum Institute of Southwest , Nanchong , China , 637001);
Liu Shu-gen & Tong Chong-guang (Technology University of Chengdu , Chengdu , 610059) |
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| Abstract: | Based on analyses of the sedimentation-responsed charateristics to the accommodation variation law at different structural positions of the steep slope zone in fault-depressed lacustrine basin, accommodation mechanics to select reference well has been discussed; and the principle for selecting reference well has been put forward. According to the facies migration character and systems tract superimposed style in reference well, the standards for identifying two types of terrigenous sequence (type Ⅰand Ⅱ) and the models of their systems tract in a terrigenous sequence have been established under the background of reference well. In this paper, the upper member of Eh3 in Shuanghe～Zhao'ao area, Biyang fault-depression, is treated as a case to study terrigenous sequence stratigraphy by using well B207 as reference well. This result shows that it can effectively resolved the problem about depositional shoreline break for terrigenous sequence in the steep slope zone of fault-depressed lacustrine basin by using reference well. |
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| Keywords: | fault depressed lacustrine basin steep slope zone depositional shoreline break reference well system tracts model sequence stratigraphy Biyang fault depression Palaeogene |
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