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Quarterly Journal of Engineering Geology and Hydrogeology
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Quarterly Journal of Engineering Geology and Hydrogeology; 1968; v. 1; issue.3; p. 181-194;
DOI: 10.1144/GSL.QJEG.1968.001.03.04
© 1968 Geological Society of London

Article

Ground-water conditions in Greater Tehran

John Lawrence Knill, PH.D. B.SC. F.G.S. & Kenneth Stuart Jones, B.SC. F.G.S

Reader in Engineering Geology, Imperial College, Prince Consort Road, London s w 7.
Sir Alexander Gibbs and Partners, Telford House, 14 Tothill Street, London s w 1.

Tehran is situated on an alluvial plain immediately south of the Alborz Mountains which form an east-west chain stretching across northern Iran. The alluvium is composed of an older, folded group, of probable Pliocene age, which is overlain by flat-lying Quaternary gravels, sands, silts and boulder beds. Recharge from surface streams takes place in the areas underlain by the flat-lying alluvium. The pattern of ground-water flow is related to the sub-surface structure of the alluvium. Chemical data are presented which indicate that extensive surface recharge takes place below the city. The ground-water balance is discussed and it is concluded that, at present, there is a balance between inflow and abstraction.