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The rigidity of the western Arabian margin: extensional strain rate field from GPS networks

Aldaajani, Thamer and Furlong, Kevin and Malservisi, Rocco (2021) The rigidity of the western Arabian margin: extensional strain rate field from GPS networks. Arabian Journal of Geosciences, 14 (5). Art. No. 393. ISSN 1866-7511. doi:10.1007/s12517-021-06751-x.

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Previous analysis of the deformation field of the Arabian margin using then the available network of Global Navigation Satellite System (GNSS) stations found that an assumption of a rigid Arabia satisfied the observations as reported by ArRajehi et al. (Tectonics 29, no. 3, 2010). However, an Mw 5.4 intra-plate earthquake occurred in 2009 in the Alshaqqah Harrat as discussed by Pallister et al. (Nature Geoscience 3, no. 10:705, 2010) suggesting that there is ongoing active deformation within the western Arabian margin. We evaluate the Arabian margin deformation field using an expanded network totaling 87 GPS stations distributed within Saudi Arabia. With the addition of these GPS stations, we found evidence of extensional strain within the Arabian margin, in regions that were unsampled by the previous geodetic networks. Although, due to the short time series, the signal at these new GPS sites is very close to the limit of the resolution, this study provides the first indication, derived from GPS velocities, of the location and extent of active internal deformation within the Arabian plate.

Item Type:Article
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URLURL TypeDescription ReadCube access
Furlong, Kevin0000-0002-2674-5110
Malservisi, Rocco0000-0003-1767-8187
Additional Information:© 2021 Saudi Society for Geosciences. Received 27 July 2020; Accepted 16 February 2021; Published 01 March 2021. We acknowledge the Saudi General Commission for Survey for providing GPS data used in this study. This research was supported by King Abdulaziz City for Science and Technology. Many of the figures were produced using GMT (Wessel and Smith, 1991). The authors declare that they have no competing interests.
Funding AgencyGrant Number
King Abdulaziz City for Science and Technology (KACST)UNSPECIFIED
Subject Keywords:Tectonics; Lithospheric deformation; Geodynamics
Issue or Number:5
Record Number:CaltechAUTHORS:20210407-143501224
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Official Citation:Aldaajani, T., Furlong, K. & Malservisi, R. The rigidity of the western Arabian margin: extensional strain rate field from GPS networks. Arab J Geosci 14, 393 (2021).
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:108646
Deposited By: Tony Diaz
Deposited On:08 Apr 2021 22:10
Last Modified:08 Apr 2021 22:10

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