Velocity distribution of upper crust, undulation of sedimentary formation and crystalline basement beneath the Ordos basin in North China
文献类型：期刊论文
| 作者 | Teng Ji-Wen1; Wang Fu-Yun2; Zhao Wen-Zhi3; Zhao Jin-Ren2; Li Ming3; Tian Xiao-Bo1; Yan Ya-Fen1; Zhang Yong-Qian1; Zhang Cheng-Ke2; Duan Yong-Hong2 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2008-11-01 |
| 卷号 | 51期号:6页码:1753-1766 |
| 关键词 | Ordos basing Velocity distribution Sedimentary formation Crystallizine basement Hydrocarbon |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | Along the line Yanchuan-Baotou-Mandela in the Ordos basin and adjacent Yinshan mountainous area in the north China, a wide-angle reflection and refraction seismic sounding has been carried out yielding Pg wave data of high resolution. By the traveltime differential tomographic imaging, traveltime inversion of the Pg wave field is performed to determine velovity distribution of the upper crust, and undulation of sedimentary formation and crystalline basement along the profile. And geological interpretation to these features is made. The result shows that the upper crust below the Ordos basin is of a double-layer structure, with a distinct interface between the upper and lower layer. The upper layer is characterized by low velocity and big gradients in vertical direction, while the lower layer has high velocity and changes gently. In the light of the velocity distribution in the upper crust of the study area, it is suggested that the sedimentary formation and crystalline basement undulate in NS directions generating a series of rising and falling structures. From south to north. they are the depression south to Yulin, Yulin-Daotu swell, listric depression from northern Daotu to the fault on the northern edge of Ordos and secondary structure in it, and Hohhot-Baotou depression and its interior faults. In the north, seismic wave velocity in the upper crust beneath the Yinshan Mountains (Mt.) is obviously higher than that below the areas on the both sides, exhibiting a pattern of longitudinal belt. It reflects the feature of the crystalline basement of this area, which is associated with collage and accretion of several blocks such as the Wula'er shan Mt., Se'erteng double-layer structure, though its refraction interface of the basement is not so clear as that below the Ordos basin. Based on the structures of sedimentary formation and undulation of the crystalline basement of the study area, we have discussed the sedimentary features and hydrocarbon prospects of every depression along the profile. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000261313500016 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/70202]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Teng Ji-Wen |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.China Earthquace Adm, Geophys Explorat Ctr, Zhengzhou 450002, Peoples R China 3.Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Teng Ji-Wen,Wang Fu-Yun,Zhao Wen-Zhi,et al. Velocity distribution of upper crust, undulation of sedimentary formation and crystalline basement beneath the Ordos basin in North China[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2008,51(6):1753-1766. |
| APA | Teng Ji-Wen.,Wang Fu-Yun.,Zhao Wen-Zhi.,Zhao Jin-Ren.,Li Ming.,...&Xu Chao-Fan.(2008).Velocity distribution of upper crust, undulation of sedimentary formation and crystalline basement beneath the Ordos basin in North China.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,51(6),1753-1766. |
| MLA | Teng Ji-Wen,et al."Velocity distribution of upper crust, undulation of sedimentary formation and crystalline basement beneath the Ordos basin in North China".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 51.6(2008):1753-1766. |
入库方式： OAI收割
来源：地质与地球物理研究所
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