| 大兴安岭地区突泉盆地高精度重磁电特征及其构造格架 |
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| 引用本文： | 王丹丹,李世臻,周新桂,李爱勇,温泉波,林燕华.大兴安岭地区突泉盆地高精度重磁电特征及其构造格架[J].吉林大学学报(地球科学版),2016(1):240-253. |
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| 作者姓名： | 王丹丹 李世臻 周新桂 李爱勇 温泉波 林燕华 |
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| 作者单位： | 中国地质大学 北京 能源学院，北京 100083;中国地质调查局油气资源调查中心，北京 100029;中国地质调查局油气资源调查中心,北京,100029;江苏省有色金属华东地质勘查局八一四队,江苏 镇江,212005;吉林大学地球科学学院,长春,130061 |
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| 基金项目： | 中国地质调查局项目(12113021080192，1212010782001)@@@@Supported by China Geological Survey Project (12113021080192，1212010782001) |
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| 摘 要： | 松辽盆地西部及外围中生界是新近确定的东北油气资源新区的主力层系,其盆地内部地层展布、构造样式、油气成藏组合条件等均不明确,油气资源潜力研究程度较低。笔者以内蒙古东北部突泉盆地为主要研究区,通过高精度重力、磁力和大地电磁等地球物理方法,揭示了突泉盆地深部地层结构形态并评价油气资源潜力。综合勘探成果显示:盆地内沉积地层由盆地边缘向盆地内部逐渐倾斜,即沉积地层向盆地中心延伸,其埋深逐渐加大,马吉拉胡一带可能为盆地中心;突泉盆地内部存在区域性断裂13条,断裂走向以NE、NW向为主,这些断裂构成了研究区的基本构造格架,控制着研究区内中生界和上古生界的隆凹格局及沉积地层发育;并圈定了北部次凸、德泉次凹、白子庙次凹、东南次凸4个中生代构造单元。这些认识和成果为下一步油气资源勘探工作部署提供了盆地深部结构方面的重要证据,也对在东北油气资源新区(松辽盆地西部及外围)进行上古生界-中生界油气资源潜力评价具有重要理论和现实意义。
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| 关 键 词： | 突泉盆地 油气勘探 重力 磁力 大地电磁(MT) 构造格架 |
Lithology Lithofacies Identification and Deep Structure of Tuquan Basin in Great Xinggan Range Area Based on High-Precision Gravity-Magnetic-Electrical Survey |
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| Wang Dandan,Li Shizhen,Zhou Xingui,Li Aiyong,Wen Quanbo,Lin Yanhua.Lithology Lithofacies Identification and Deep Structure of Tuquan Basin in Great Xinggan Range Area Based on High-Precision Gravity-Magnetic-Electrical Survey[J].Journal of Jilin Unviersity:Earth Science Edition,2016(1):240-253. |
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| Authors: | Wang Dandan Li Shizhen Zhou Xingui Li Aiyong Wen Quanbo Lin Yanhua |
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| Abstract: | In the latest round of oil and gas resources nationwide survey and integral deployment,the western district of Songliao basin and its periphery are taken as the study area to do the Mesozoic oil and gas resource potential evaluation.To gain further insight of the oil & gas resource potential of the new regions and new layers,the high precised gravity,magnetic and electrical geophysical methods are used to study the stratigraphic distribution, deep structural styles, and hydrocarbon accumulation combination of Tuquan basin.The research results indicate that the sedimentary strata gradually slopes from the edge to the centre of the basin with a gradual increase of the burial depth;13 regional faults develop mainly in NE and NW direction in Tuquan basin,and these faults control the basic structural framework of Tuquan basin,the Mesozoic and Upper Paleozoic upwarping-downwarping pattern,as well as the sedimentary strata.We delineate four Mesozoic tectonic unites:the secondary salient of north part, the secondary depression of Dequan, the secondary depression of Baizimiao, and the secondary salient of southeast part.These perceptions and results provide important deep structure evidence of the basin for the next oil and gas exploration,and also have important theoretical and practical significance for the Upper Paleozoic- Mesozoic oil and gas resources assessment of the new oil and gas district in Northeast China(Western Songliao Basin and external area). |
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| Keywords: | Tuquan basin oil and gas exploration gravity magnetic MT tectonic framework |
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