Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jseaes.2011.12.005
Title: Receiver function structure beneath four seismic stations in the Sumatra region
Authors: Macpherson, K.A.
Hidayat, D.
Goh, S.H. 
Keywords: Crustal thickness
Receiver functions
Sumatra
Teleseismic
Issue Date: 2-Mar-2012
Source: Macpherson, K.A., Hidayat, D., Goh, S.H. (2012-03-02). Receiver function structure beneath four seismic stations in the Sumatra region. Journal of Asian Earth Sciences 46 : 161-176. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jseaes.2011.12.005
Abstract: We estimated the velocity structure beneath four three-component broad-band seismic stations in the Sumatra region by the joint inversion of teleseismic receiver functions and surface wave group velocities. The stations, part of GEOFON network GE, are located in diverse geologic settings including backarc basins, forearc basins, and the forearc ridge. The stations are distributed roughly trench-parallel, providing samples of conditions along the length of Sumatra. 143 receiver functions were computed by employing an iterative, time-domain deconvolution in order to minimize acausal noise. The teleseismic observations at each station were grouped by back azimuth and ray parameter and then stacked to increase the signal to noise ratios. Surface wave group velocity dispersion was measured for paths across the Sunda block from events to the northeast of the stations. P-wave velocity profiles were derived by inverting the stacks and group velocity data using a linearized time-domain inversion scheme with an interpolated CRUST2.0 global model for input. The results differ significantly from CRUST2.0, and reflect the diversity of geologic environments within which the stations are located. Crustal thicknesses beneath the stations range from 16.0. km at the forearc to 30.0. km at a backarc basin. These results add to the available velocity and crustal thickness data for the Sumatra region. © 2011 Elsevier Ltd.
Source Title: Journal of Asian Earth Sciences
URI: http://scholarbank.nus.edu.sg/handle/10635/59180
ISSN: 13679120
DOI: 10.1016/j.jseaes.2011.12.005
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

7
checked on Dec 13, 2017

WEB OF SCIENCETM
Citations

7
checked on Nov 16, 2017

Page view(s)

29
checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.