| 地震剖面中走滑断层旋向判断模型——以塔东阿拉干北断层为例 |
| |
| 引用本文： | 卢华复,王胜利.地震剖面中走滑断层旋向判断模型——以塔东阿拉干北断层为例[J].大地构造与成矿学,2009,33(1). |
| |
| 作者姓名： | 卢华复 王胜利 |
| |
| 作者单位： | 南京大学地球科学与工程学院,江苏,南京,210093 |
| |
| 摘 要： | 地震剖面解释中尚无走滑断层旋向的直接判别标志,本文提出了一个在地震剖面解释中直接判断走滑断层旋向的模型。该模型假定断层作用前既存的某个地层厚度有变化,则垂直或斜交地层厚度变化方向的走滑断层必定在穿过断层的地震剖面中两盘地层厚度不等。确定了地层厚度变化方向,又测定了剖面中两盘地层厚度,则走滑断层的旋向就可以唯一地确定下来。穿过塔里木盆地东部阿拉干北右行走滑断层的地震剖面资料证实了这一模型的适用性。
|
| 关 键 词： | 地震剖面走滑断层旋向 阿拉干北右行走滑断层 塔里木盆地 |
A Concept Model of Determination of Shear Sense of Strike-Slip Faults in Seismic Profiles:An Example from the Alaganbei Fault in the Eastern Tarim Basin |
| |
| LU Huafu,WANG Shengli.A Concept Model of Determination of Shear Sense of Strike-Slip Faults in Seismic Profiles:An Example from the Alaganbei Fault in the Eastern Tarim Basin[J].Geotectonica et Metallogenia,2009,33(1). |
| |
| Authors: | LU Huafu WANG Shengli |
| |
| Institution: | Earth Sciences and Engineering School;Nanjing University;Nanjing 210093;Jiangsu;China |
| |
| Abstract: | There is no indicator to directly determine the shearing sense of the strike-slip fault in seismic profiles until the model presented in this paper.We present a concept model to directly determine the shearing sense of strike-slip faults in seismic profiles.If the thickness of pre-existing certain strata is changing in some directions,the strata thicknesses in both walls of a strike-slip fault must be different in the seismic profiles across the fault.The shearing sense of the strike-slip fault would be uni... |
| |
| Keywords: | seismic profiles shear sense of strike slip fault the Alaganbei dextral strike-slip fault eastern Tarim basin |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
