Preliminary results from very long period data collected by a broad band digital seismic station

Ramakrishna Rao, C. V. ; Gaur, V. K. (1991) Preliminary results from very long period data collected by a broad band digital seismic station Proceedings of the Indian Academy of Sciences - Earth and Planetary Sciences, 100 (4). pp. 369-378. ISSN 0253-4126

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Official URL: http://www.ias.ac.in/j_archive/epsci/100/4/369-378...

Related URL: http://dx.doi.org/10.1007/BF02839256

Abstract

Preliminary analysis of seismograms recorded by a wide band high dynamic range digital seismograph installed under a collaborative research programme between IPG, Paris and NGRI, Hyderabad, indicates that the crust and upper mantle structure below the Indian continent are characterized by high velocity up to a depth of 500 km. Both the group and phase velocities in the period range of 100-350s are found to be faster by 3-4% and 1-3% respectively compared with global models such as the preliminary reference earth model.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Broad Band; Surface Waves; Group Velocity; Phase Velocity
ID Code:21836
Deposited On:22 Nov 2010 16:38
Last Modified:31 May 2011 14:23

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