Investigation of the weathering layer using seismic refraction and highresolution seismic reflection methods, NE of Riyadh city

Ghunaim T. Al-Anezi; Abdullah M. Al-Amri; Haider Zaman

doi:10.1071/ASEG2012ab218

ISSN: 2202-0586
E-ISSN:

oa Investigation of the weathering layer using seismic refraction and highresolution seismic reflection methods, NE of Riyadh city
Authors Ghunaim T. Al-Anezi^a, Abdullah M. Al-Amri^b and Haider Zaman^c
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^a King Abdulaziz City for Science & Technology, Riyadh, , Saudi Arabia, [email protected] ^b King Saud University, Riyadh, , Saudi Arabia, [email protected] ^c King Saud University, Riyadh, , Saudi Arabia, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2012, Issue ASEG2012 - 22nd Geophysical Conference, Dec 2012, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2012ab218
- Published online: 01 Dec 2012

Abstract

Summary

Five seismic refraction and five high-resolution seismic reflection (HRSR) profiles were carried out in northeastern part of Riyadh city to investigate depth of the weathering layer. Results obtained from seismic refraction survey reveal the depths of weathering layer at 12, 25, 17, 12, and 16 m, respectively. On the other hand, HRSR stack sections illustrate the depths of weathering layer at 14, 28, 20, 13, and 18 m, respectively. The weathering layer is composed of alluvial sediments and gravel, which is underlain by a sequence of limestone and dolomite layer. Seismic results from site no. 2 have been found to be in good agreement with lithological information reported from the adjacent water well. The HRSR data generally reveal better signal-to-noise ratio and enhanced resolution compared to the refraction data. Although, the HRSR data failed in achieving high-quality common midpoint (CMP) stacking profile at site no. 3, it provide an improved image of the subsurface features than the refraction data, recognizing it as a potential seismic technique.

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2012-12-01

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References

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Article Type: Research Article

Keyword(s): high resolution seismic reflection; Seismic refraction; stack sections; the weathering layer.

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oa Investigation of the weathering layer using seismic refraction and highresolution seismic reflection methods, NE of Riyadh city

Abstract

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