Open AccessCrustal structure of the Bay of Bengal and adjacent seas
Author(s) -
G. S. VARMA
Publication year - 1974
Publication title -
mausam
Language(s) - English
Resource type - Journals
ISSN - 0252-9416
DOI - 10.54302/mausam.v25i1.5190
Subject(s) - bengal , bay , geology , seismometer , crust , seismology , mantle (geology) , oceanography , geophysics
The time-distance curves, plotted from the first onsets of P-waves, recorded by the coastal seismograph stations for the earthquakes originating from the Bay of Bengal and Andaman and Nicobar Islands, indicate a single layered crust in this region. The depth to the Moho has been determined as 25.4 km. The velocities at the upper layer and at the top of the mantle have been determined as 6.28 ± 0. 04 and 7.97 ± 0.01 km/sec respectively. The granitic layer was found totally absent.