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pure and applied geophysics

, Volume 158, Issue 1–2, pp 193–209 | Cite as

On the Use of Calibration Explosions at the Former Semipalatinsk Test Site for Compiling a Travel-time Model of the Crust and Upper Mantle

  • N.N. Belyashova
  • V.I. Shacilov
  • N.N. Mikhailova
  • I.I. Komarov
  • Z.I. Sinyova
  • A.V. Belyashov
  • M.N. Malakhova

Abstract

 — Two chemical calibration explosions, conducted at the former Semipalatinsk nuclear test site in 1998 with charges of 25 tons and 100 tons TNT, have been used for developing travel-time curves and generalized one-dimensional velocity models of the crust and upper mantle of the platform region of Kazakhstan. The explosions were recorded by a number of digital seismic stations, located in Kazakhstan at distances ranging from 0 to 720 km. The travel-time tables developed in this paper cover the phases P, Pn, Pg, S, Sn, Lg in a range of 0–740 km and the velocity models apply to the crust down to 44 km depth and to the mantle down to 120 km. A comparison of the compiled travel-time tables with existing travel-time tables of CSE and IASPEI91 is presented.

Key words: Chemical calibration explosions, 1-D velocity model, Semipalatinsk test site. 

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Copyright information

© Birkhäuser Verlag Basel, 2001

Authors and Affiliations

  • N.N. Belyashova
    • 1
  • V.I. Shacilov
    • 2
  • N.N. Mikhailova
    • 1
  • I.I. Komarov
    • 1
  • Z.I. Sinyova
    • 1
  • A.V. Belyashov
    • 1
  • M.N. Malakhova
    • 1
  1. 1.Institute of Geophysical Research, National Nuclear Center, Republic of Kazakhstan. E-mail: igr@nnc.kzKZ
  2. 2.Institute of Seismology, Department of Science, Republic of Kazakhstan.KZ

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