Multiscale inhomogeneities on the surface of the Earth's inner core

封面

如何引用文章

全文:

开放存取 开放存取
受限制的访问 ##reader.subscriptionAccessGranted##
受限制的访问 订阅存取

详细

The analysis of differential travel-time residuals of reflected PcP and PKiKP waves that probe the core regions under Eurasia, Southeast Asia, and South America indicates a mosaic picture of the surface properties of the inner core, including large-scale and small-scale lateral inhomogeneities. A strong anomaly has been discovered under the Caspian Sea.

作者简介

V. Ovtchinnikov

Sadovsky Institute of Geosphere Dynamics, Russian Academy of Sciences

编辑信件的主要联系方式.
Email: ovtch@idg.ras.ru
俄罗斯联邦, Moscow

O. Usoltseva

Sadovsky Institute of Geosphere Dynamics, Russian Academy of Sciences

Email: kriukova@mail.ru
俄罗斯联邦, Moscow

参考

  1. Tkalčić H. The Earth’s Inner Core Revealed by Observational Seismology. Cambridge, UK: Cam bridge University Press. 2017. https://doi.org/10.1017/ 9781139583954
  2. Овчинников В. М., Краснощеков Д. Н. Сейсмические исследования ядра Земли // Физика Земли. 2021. № 2. С. 3–26. doi: 10.31857/S0002333721020083.
  3. Адушкин В. В., Овчинников В. М. О мозаичности отражающих свойств поверхности внутреннего ядра Земли // ДАН. 2004. Т. 397. № 6. С. 815–817.
  4. Krasnoshchekov D. N., Kaazik P. B., Ovtchinnikov V. M. Seismological evidence for mosaic structure of the surface ofthe Earth’s inner core // Nature. 2005. V. 435. P. 483–487.
  5. Niu F., Wen L. Hemispherical variations in seismic velocity at the top of the Earth’s inner core // Nature. 2001. V. 410. P. 1081–1084.
  6. Simmons N. A., Myers S. C., Joannesson G. M., Matzel E. LLNL-G3Dv3: global P wave tomography model for miproved regional and teleseismic travel time prediction // J. Geopys. Res.: Solid Eaarth. 2012. 117 (B10). 189–200.
  7. Kennett B. L. N., Engdahl E. R., Buland R. Con straints on seismic velocities in the Earth from tra veltimes // Geophys. J. Int. 1995. 122(1). 108–124. doi: 10.1111/j.1365-246X.1995.tb03540.x.
  8. Souriau A., Souriau M. Ellipticity and density at the inner core boundary from subcritical PKiKP and PcP data // Geophys. J. Int. 1989. V. 98. P. 39–54.
  9. Oreshin S., Vinnik L. Heterogeneity and anisotropy of seismic attenuation in the inner core // Geophys. Res. Lett. 2004. V. 31. L02613.
  10. Tanaka S., Hamaguchi H. Degree one heterogeneity and hemispherical variation in anisotropy in the inner core from PKP(BC) – PKP(DF) times // Journal of Geophysical Research. 1997. V. 102. P. 2925–2938.
  11. Koper D. K., Pyle M. L. Franks J. M. Constraints on aspherical core structure from PKiKP-PcP differential travel times //J. Geophys. Res Solid Earth. 2003. V. 108. P. 2168. https://doi.org/10.1029/2002JB002750
  12. Stevenson D. J. Limits of lateral density and velocity variation in the Earth’s outer core // Geoph. J. R. Astron. Soc. 1987. V. 88. P. 311–319.

补充文件

附件文件
动作
1. JATS XML
下载

版权所有 © Russian Academy of Sciences, 2024