首页> 外文期刊>Geophysics: Journal of the Society of Exploration Geophysicists >Tutorial on rotational seismology and its applications in exploration geophysics
【24h】

Tutorial on rotational seismology and its applications in exploration geophysics

机译:旋转地震学的教程及其在勘探地球物理中的应用

获取原文
获取原文并翻译 | 示例
获取外文期刊封面目录资料

摘要

Traditionally, seismological interpretations are based on the measurement of only translational motions, such as particle displacement, velocity, and/or acceleration, possibly combined with pressure changes; yet theory indicates that rotational motions should also be observed for a complete description of all ground motions. The recent and ongoing development of rotational sensors renders a full analysis of the translational and rotational ground motion possible. We have developed the basic mathematical theory related to rotational motion. And we also evaluated several instruments used to directly measure the rotational ground motion, which may be applicable for exploration geophysics. Finally, we made several applications of rotational motion in exploration geophysics, namely, (1) P-and S-wavefield separation, (2) wavefield reconstruction, (3) ground-roll removal, (4) microseismic event localization and reflection seismic migration by wavefield extrapolation, and (5) moment tensor inversion. The cited research shows that in particular, the information on the spatial gradient of the wavefield obtained by rotational sensors is beneficial for many purposes. This tutorial is meant to (1) enhance familiarity with the concept of rotational seismology, (2) lead to additional applications, and (3) fast track the continued development of rotational sensors for global and exploration geophysical use.
机译:传统上,地震释放基于仅对平移运动的测量,例如颗粒位移,速度和/或加速度,可能与压力变化相结合;然而理论表明,还应该观察到旋转运动,以完整描述所有地面运动。旋转传感器的最近和持续发展使得可以完全分析平移和旋转地面运动。我们开发了与旋转运动相关的基本数学理论。我们还评估了几种用于直接测量旋转地面运动的仪器,这可能适用于勘探地球物理。最后,我们在勘探地球物理中旋转运动的几种应用,即(1)P-and S-Wavefield分离,(2)波场重建,(3)接地滚动,(4)微震事件定位和反射地震迁移通过波场外推,(5)矩扭转反转。所引用的研究表明,特别地,通过旋转传感器获得的波场空间梯度的信息对于许多目的是有益的。本教程意味着(1)增强熟悉旋转地震学的概念,(2)导致额外的应用,(3)快速追踪全球和勘探地球物理使用的旋转传感器的持续发展。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号