Alexander the Great's Tombolos at Tyre and Alexandria, Eastern Mediterranean ⁎ N
Available online at www.sciencedirect.com Geomorphology 100 (2008) 377–400 www.elsevier.com/locate/geomorph Alexander the Great's tombolos at Tyre and Alexandria, eastern Mediterranean ⁎ N. Marriner a, , J.P. Goiran b, C. Morhange a a CNRS CEREGE UMR 6635, Université Aix-Marseille, Europôle de l'Arbois, BP 80, 13545 Aix-en-Provence cedex 04, France b CNRS MOM Archéorient UMR 5133, 5/7 rue Raulin, 69365 Lyon cedex 07, France Received 25 July 2007; received in revised form 10 January 2008; accepted 11 January 2008 Available online 2 February 2008 Abstract Tyre and Alexandria's coastlines are today characterised by wave-dominated tombolos, peculiar sand isthmuses that link former islands to the adjacent continent. Paradoxically, despite a long history of inquiry into spit and barrier formation, understanding of the dynamics and sedimentary history of tombolos over the Holocene timescale is poor. At Tyre and Alexandria we demonstrate that these rare coastal features are the heritage of a long history of natural morphodynamic forcing and human impacts. In 332 BC, following a protracted seven-month siege of the city, Alexander the Great's engineers cleverly exploited a shallow sublittoral sand bank to seize the island fortress; Tyre's causeway served as a prototype for Alexandria's Heptastadium built a few months later. We report stratigraphic and geomorphological data from the two sand spits, proposing a chronostratigraphic model of tombolo evolution. © 2008 Elsevier B.V. All rights reserved. Keywords: Tombolo; Spit; Tyre; Alexandria; Mediterranean; Holocene 1. Introduction Courtaud, 2000; Browder and McNinch, 2006); (2) establishing a typology of shoreline salients and tombolos (Zenkovich, 1967; The term tombolo is used to define a spit of sand or shingle Sanderson and Eliot, 1996); and (3) modelling the geometrical linking an island to the adjacent coast.
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