Late Holocene Paleogeography of the Coastal Plain of the Gulf of Messenia, Greece, and Its Relationships to Archaeological Settings and Coastal Change
Late Holocene Paleogeography of the Coastal Plain of the Gulf of Messenia, Greece, and Its Relationships to Archaeological Settings and Coastal Change JOHN C. KRAFT Department of Geology, University of Delaware, Newark, Delaware 19711 GEORGE RAPP, JR. Department of Geology and Geophysics, University of Minnesota, Minneapolis, Minnesota 55455, and Hellenic Institute of Oceanographic and Fishing Research, Agios Kosmas, Ellinikon, Athens, Greece STANLEY E. ASCHENBRENNER Minnesota Messenia Expedition, Department of Geology and Geophysics, University of Minnesota, Minneapolis, Minnesota 55455 ABSTRACT INTRODUCTION made that current geomorphic elements have existed from middle Holocene time to The coastal plain of the Pamisos River The late Holocene geologic history of the the present. Despite extensive discussion in and five associated rivers at the head of the world's sandy coastal plains undoubtedly the literature of the interplay between cul- Gulf of Messenia in the southwestern played a significant role in their occupancy tural and physical phenomena since Peloponnese includes middle through upper by man. These plains are loci of relatively Neolithic time, a true synthesis of these Holocene sedimentary-environment litho- rapid geographic change, so there is a po- elements has been exceedingly difficult to somes of alluvial flood-plain deposits, tential for large error if the assumption is achieve. In addition to a lack of adequate channel sand, braided streams and deltas, bank swamps and marshes, dune fields, minor lagoons, beach-accretion ridges, and shallow-marine sediment. The areal dis- tribution of these environments is in bal- ance between the sediment supplied by the alluvial systems and their modification by coastal wave action. Questions remain about the importance of tectonic uplift and downwarp relative to sediment input and changes in eustatic sea level.
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