Crustal structure and upper mantle stratigraphy of the Arabian shield
Authors:
- 27 April 2002
- journal article
- Published by American Geophysical Union (AGU) in Geophysical Research Letters
- Vol. 29 (8) , 130-1-130-4
Abstract
Analysis of receiver functions from an eight‐station network on the Saudi Arabian shield indicates that the Moho depths vary between 35–38 km. The crust appears to be rather felsic in nature as evidenced by Poisson's ratios of 0.25–0.27. A prominent negative phase following the Moho conversion is suggestive of a zone of velocity inversion. Indication of mantle stratification is observed beneath the coastal region of Arabia, by way of an additional upper mantle discontinuity at about 240 km. The conversions from the 410 and 660‐km discontinuities are significantly delayed, suggesting a slow and hot upper mantle.Keywords
This publication has 24 references indexed in Scilit:
- Surface wave waveform anomalies at the Saudi Seismic NetworkGeophysical Research Letters, 2001
- Crustal structure of the Indian Shield: New constraints from teleseismic receiver functionsGeophysical Research Letters, 2001
- Global‐scale analysis of the mantle Pds phasesJournal of Geophysical Research, 1999
- Mantle stratigraphy and evolution of the Slave provinceJournal of Geophysical Research, 1998
- Crustal structure of the East African Plateau from receiver functions and Rayleigh wave phase velocitiesJournal of Geophysical Research, 1997
- Nature and composition of the continental crust: A lower crustal perspectiveReviews of Geophysics, 1995
- Archean and Proterozoic crustal evolution: Evidence from crustal seismologyGeology, 1991
- Ray path interpretation of the crustal structure beneath Saudi ArabiaTectonophysics, 1986
- Saudi Arabian seismic-refraction profile: A traveltime interpretation of crustal and upper mantle structureTectonophysics, 1985
- Upper mantle seismic anisotropy and lithospheric decouplingNature, 1981