Lower Crustal and Upper-most Mantle Structure beneath Station WMQ, China by using Teleseismic P-wave Polarization Signals,

Abstract

We have applied a polarization tomographic inversion to the single station WMQ to retrieve the velocity structure of the lower crust and upper-most mantle in the vicinity of Lop Nor. 828 teleseismic P-wave waveforms with event magnitude Mb > 5.0 around the world with excellent coverage of back azimuth were collected and are used to measure polarization anomalies. In addition, 39 PKP signals are used. Inversion results reveal a low velocity region or a depressed Moho to the northwest of the WMQ station.

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Document Details

Document Type
Technical Report
Publication Date
Aug 14, 1995
Accession Number
ADP204430

Entities

People

  • Liping Gao
  • Paul G. Richards

Organizations

  • Lamont–Doherty Earth Observatory

Tags

DTIC Thesaurus Topics

  • Earth Models
  • Earthquakes
  • Elastic Waves
  • Geological Surveys
  • Inversion
  • Models
  • Observatories
  • Polarization
  • Three Dimensional
  • Time Domain
  • Tomography
  • Travel Time
  • Waveforms
  • Waves

Readers

  • Seismology