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A geological note on the Qir earthquake, SW Iran, April 1972

Published online by Cambridge University Press:  01 May 2009

H. McQuillan
Affiliation:
Department of Geology, Pahlavi University, Shiraz, Iran

Summary

This note outlines some thoughts on the possible significance of the April 1972 Qir earthquake with respect to the geological structure of Fars Province, SW Iran. The area in which the disturbance occurred belongs to a belt of simple folds of the Zagros system. These folds exhibit localized anomalies of structure which are attributed both to renewed movements along deep-seated basement features and to the modifying effects of salt mobility in the subsurface. The absence of surface indications of rupture in the devastated area is puzzling, but the alignment of zones of maximum destruction to buildings suggests a shallow epicentre associated with a concealed N70°W trending thrust fault system. Such seismicity is indicative of the continued activity of the Zagros orogenic movements.

Type
Articles
Copyright
Copyright © Cambridge University Press 1973

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References

Akasheh, B. 1972. Seismizitat und Tektonik von Iran. Jl Earth & Space Phys. 1, No. 1, 823.Google Scholar
Falcon, N. L. 1969. Problems of the relationship between surface structure and deep displacements illustrated by the Zagros Range. In Time and Place in Orogeny, Sp. pubn geol. Soc. Lond. 3.Google Scholar
Gansser, A. 1955. New aspects of the geology of central Iran. Proc. 4th World Petrol. Congr., Section 1, 279.Google Scholar
Iran National Cartographic Center, 1967. Airphotographs scale 1:20,000.Google Scholar
James, G. A. & Wynd, J. G. 1965. Stratigraphic nomenclature of Iranian Oil Consortium Agreement Area. Bull. Am. Ass. Petrol. Geol. 49, No. 12, 2182–245.Google Scholar
National Iranian Oil Company, 1959. Geological Map of Iran. 1:250,000.Google Scholar
Takin, M. 1972. Iranian Geology and Continental Drift in the Middle East. Nature, Lond. 235, 147–50.CrossRefGoogle Scholar