| 火山岩地层地震反射特征和地震-地质联合解释:以徐家围子断陷为例 |
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| 引用本文： | 程日辉,李飞,沈艳杰,唐华风.火山岩地层地震反射特征和地震-地质联合解释:以徐家围子断陷为例[J].地球物理学报,2011,54(2):611-619. |
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| 作者姓名： | 程日辉 李飞 沈艳杰 唐华风 |
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| 作者单位： | 吉林大学地球科学学院,长春 130061 |
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| 基金项目： | 国家重点基础研究发展计划(973)项目,国家自然科学基金项目(40972074)资助.本文同时获东北亚生物演化与教育部重点实验室、吉林大学"211"工程三期建设项目和2009年教育部基本科研业务经费(吉林大学创新团队发展计划)支持 |
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| 摘 要： | 火山岩地层的地震反射特征可通过地震参数、反射结构与地震相、地震地层结构进行地质解释.徐家围子断陷营城组是一套以火山岩占优势的火山岩地层.钻遇营城组钻井与地震资料匹配给出了各种地震属性、反射结构和地震相的地质解释.在徐家围子断陷地震三维工区开展的火山岩地层的地震-地质联合解释包含三个层次1:地震参数、反射结构与地震相、地...
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| 关 键 词： | 火山岩地层 地震反射 地震-地质联合解释 营城组 松辽盆地 |
| 收稿时间： | 2010-06-29 |
The seismic reflection features of volcanic stratum and the seismic-geological interpretation: The case study in Xujiaweizi faulted depression, Songliao basin |
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| CHENG Ri-Hui,LI Fei,SHEN Yan-Jie,TANG Hua-Feng.The seismic reflection features of volcanic stratum and the seismic-geological interpretation: The case study in Xujiaweizi faulted depression, Songliao basin[J].Chinese Journal of Geophysics,2011,54(2):611-619. |
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| Authors: | CHENG Ri-Hui LI Fei SHEN Yan-Jie TANG Hua-Feng |
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| Institution: | College of Earth Sciences, Jilin University, Changchun 130061,China |
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| Abstract: | It is possible to describe the seismic features of volcanic strata in geology using seismic parameter, seismic reflection configuration and phases, and seismic stratigraphy. Yingcheng formation is a set of volcanic strata in which the volcanic rock is dominant in Xujiaweizi faulted depression of Songliao basin. Matching both the drilling data and seismic data of Yingcheng formation can give some geological interpretations of seismic attribute, reflection configuration and phases. The seismic-geological interpretation of volcanic strata in the 3D seismic region of Xujiaaweizi faulted depression contains three aspects: seismic parameter, seismic reflection configuration and phases, and architecture of seismic strata, responding to the stratigraphic records of volcanism and related sedimentation. The seismic reflection configuration and phases are the key to the seismic-geological interpretation. The parallel and divergent reflections occurred in rock beds formed in the transitional environments from volcanic slope to basin, showing continuous distribution and stable accumulation of volcanic materials. The progradational reflections often occurred in rock beds formed from volcanic slope to basin, showing the characteristics of non-continuous and rapid accumulation. The mound and cover reflections occurred in some environments from crater to basin, related to magma extrusion and hot surge accumulation. The filling reflections occurred in many environments, showing deep cutting and erosion of volcanic materials. The possible geological interpretation of seismic volcanic stratigraphy should obey a rule that is "from large to small scale and from outline to detail", corresponding to seismic parameter, seismic reflection configuration and phases, and architecture of seismic strata. |
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| Keywords: | Volcanic stratigraphy Seismic reflection Seismic-geological interpretation Yingcheng formation Songliao basin |
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