Upper Mantle Structure in and around The Indian sub-continent (from S-waves)

Authors

  • R. K. DUBE

DOI:

https://doi.org/10.54302/mausam.v21i2.5389

Abstract

Upper Mantle Structure of the Indian sub-continent has been studied from the S-wave observations of shallow focus earthquakes, using T-D method. The 8-wave velocity below the Mohorovicic discontinuity is found to be 4.54 km/see, whereas this seems to be lesser under Himalayas. The depth of the top of low velocity layer in the Upper Mantle found to be about 140 km and its thickness about 50 km. S-wave velocity increase with depth from the discontinuity to the top of the low velocity layer has been observed.  A steep velocity gradient below the low velocity layer has also been observed.  Lehman’s model for the continental Upper Mantle has been fitted with the observations and its deviations discussed.

 

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Published

01-04-1970

How to Cite

[1]
R. K. . DUBE, “Upper Mantle Structure in and around The Indian sub-continent (from S-waves)”, MAUSAM, vol. 21, no. 2, pp. 291–294, Apr. 1970.

Issue

Vol. 21 No. 2 (1970): MAUSAM

Section

Shorter Contribution

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