Seismic Structure of Southern African Cratons: A study based on teleseismic receiver functions and finite-frequency tomography

Research output: Contribution to journal › Conference abstract in journal › Research › peer-review

Standard

Seismic Structure of Southern African Cratons : A study based on teleseismic receiver functions and finite-frequency tomography. / Soliman, Mohammad Youssof Ahmad; Artemieva, Irina; Levander, Alan; Thybo, Hans.

In: Geophysical Research Abstracts, Vol. 16, 10884, 04.2014.

Research output: Contribution to journal › Conference abstract in journal › Research › peer-review

Harvard

Soliman, MYA, Artemieva, I, Levander, A & Thybo, H 2014, 'Seismic Structure of Southern African Cratons: A study based on teleseismic receiver functions and finite-frequency tomography', Geophysical Research Abstracts, vol. 16, 10884.

APA

Soliman, M. Y. A., Artemieva, I., Levander, A., & Thybo, H. (2014). Seismic Structure of Southern African Cratons: A study based on teleseismic receiver functions and finite-frequency tomography. Geophysical Research Abstracts, 16, [10884].

Vancouver

Soliman MYA, Artemieva I, Levander A, Thybo H. Seismic Structure of Southern African Cratons: A study based on teleseismic receiver functions and finite-frequency tomography. Geophysical Research Abstracts. 2014 Apr;16. 10884.

Author

Soliman, Mohammad Youssof Ahmad ; Artemieva, Irina ; Levander, Alan ; Thybo, Hans. / Seismic Structure of Southern African Cratons : A study based on teleseismic receiver functions and finite-frequency tomography. In: Geophysical Research Abstracts. 2014 ; Vol. 16.

Bibtex

@article{e1483dfbe23844938d981fc4d81081aa,
title = "Seismic Structure of Southern African Cratons: A study based on teleseismic receiver functions and finite-frequency tomography",
abstract = "Cratons are extremely stable continental crustal areas above thick depleted lithosphere. These regions have remained largely unchanged for more than 2.5 Ga. This study presents a new seismic model of the seismic structure of the crust and lithospheric mantle constrained by seismic receiver functions and finite-frequency tomography based on data from the South Africa Seismic Experiment (SASE). Combining the two methods provides high vertical and lateral resolution. The main results obtained are (1) the presence of a highly heterogeneous crustal structure, in terms of thickness, composition (as shown by estimated Vp/Vs), and sharpness of the discontinuities, (2) observation of an unexpectedly strong crustal azimuthal anisotropy, and (3) a fast lithospheric keel of the Kaapvaal Craton which reaches depths of 300-350 km and relatively slow anomalies beneath both the paleo-orogenic Limpopo Belt and modified Bushveld Complex down to depth of ~250 km and ~150 km, respectively.",
author = "Soliman, {Mohammad Youssof Ahmad} and Irina Artemieva and Alan Levander and Hans Thybo",
year = "2014",
month = apr,
language = "English",
volume = "16",
journal = "Geophysical Research Abstracts",
issn = "1607-7962",
publisher = "Copernicus GmbH",
note = "EGU General Assembly 2014 ; Conference date: 26-04-2014 Through 02-05-2014",

}

RIS

TY - ABST

T1 - Seismic Structure of Southern African Cratons

T2 - EGU General Assembly 2014

AU - Soliman, Mohammad Youssof Ahmad

AU - Artemieva, Irina

AU - Levander, Alan

AU - Thybo, Hans

PY - 2014/4

Y1 - 2014/4

N2 - Cratons are extremely stable continental crustal areas above thick depleted lithosphere. These regions have remained largely unchanged for more than 2.5 Ga. This study presents a new seismic model of the seismic structure of the crust and lithospheric mantle constrained by seismic receiver functions and finite-frequency tomography based on data from the South Africa Seismic Experiment (SASE). Combining the two methods provides high vertical and lateral resolution. The main results obtained are (1) the presence of a highly heterogeneous crustal structure, in terms of thickness, composition (as shown by estimated Vp/Vs), and sharpness of the discontinuities, (2) observation of an unexpectedly strong crustal azimuthal anisotropy, and (3) a fast lithospheric keel of the Kaapvaal Craton which reaches depths of 300-350 km and relatively slow anomalies beneath both the paleo-orogenic Limpopo Belt and modified Bushveld Complex down to depth of ~250 km and ~150 km, respectively.

AB - Cratons are extremely stable continental crustal areas above thick depleted lithosphere. These regions have remained largely unchanged for more than 2.5 Ga. This study presents a new seismic model of the seismic structure of the crust and lithospheric mantle constrained by seismic receiver functions and finite-frequency tomography based on data from the South Africa Seismic Experiment (SASE). Combining the two methods provides high vertical and lateral resolution. The main results obtained are (1) the presence of a highly heterogeneous crustal structure, in terms of thickness, composition (as shown by estimated Vp/Vs), and sharpness of the discontinuities, (2) observation of an unexpectedly strong crustal azimuthal anisotropy, and (3) a fast lithospheric keel of the Kaapvaal Craton which reaches depths of 300-350 km and relatively slow anomalies beneath both the paleo-orogenic Limpopo Belt and modified Bushveld Complex down to depth of ~250 km and ~150 km, respectively.

M3 - Conference abstract in journal

VL - 16

JO - Geophysical Research Abstracts

JF - Geophysical Research Abstracts

SN - 1607-7962

M1 - 10884

Y2 - 26 April 2014 through 2 May 2014

ER -

ID: 130674333