ǻİȜIJȓο IJȘȢ ǼȜȜȘȞȚțȒȢ ΓİωȜογȚțȒȢ ǼIJαȚȡȓαȢ, IJȩȝοȢ L, 2016 ΠȡαțIJȚțά 14 ου ǻȚİșȞοȪȢ ΣυȞİįȡȓου, ΘİııαȜοȞȓțȘ, ΜάȚοȢ 2016 Bulletin of the Geological Society of Greece, vol. L, 2016 Proceedings of the 14 th Intern. Conference, Thessaloniki, May 2016 ΜULTIPROXY PALEOENVIRONMENTAL RECONSTRUCTION: THE PIRAEUS COASTAL PLAIN CASE STUDY Triantaphyllou M.V. 1 , Pavlopoulos K.P. 2, 3 , Kouli K. 1 , Koukousioura O. 4 , Dimiza M.D. 1 , Aidona E. 5 , Pallikarakis A. 6 , Goiran J.-P. 7 , Fouache E. 2 1 University of Athens, Faculty of Geology and Geoenvironment, Department of Historical Geology-Paleontology, Panepistimiopolis, 157 84 Athens, Greece, mtriant@geol.uoa.gr 2 Paris-Sorbonne University Abu Dhabi, Department of Geography and Planning 3 Harokopion University, 70 El Venizelou Street, 17671 Athens, Greece 4 Aristotle University of Thessaloniki, School of Geology, Department of Geology, 54124, Thessaloniki, Greece 5 Aristotle University of Thessaloniki, School of Geology, Department of Geophysics, 54124, Thessaloniki, Greece, 6 Agricultural University of Athens, Department of Natural Resources Management & Agricultural Engineering, Laboratory Mineralogy - Geology, Iera Odos 75, Athens 118 55, Greece 7 Centre National de la Recherche Scientifique (CNRS), UMR 5133-Archéorient, MOM, 7 rue Raulin, 69007 Lyon, France Abstract The joint application of benthic foraminifera, pollen and NPPs and magnetic sus- ceptibility analyses in Piraeus coastal plain deposits resulted in the detailed study of palaeoenvironmental evolution of the area during almost the last 9000 years and the distinction of five lithostratigraphical-paleoenvironmental units and subunits. Com- bined results of our analyses features the occurrence of an inner lagoon (unit Aa) followed by an open lagoon (Unit Ab) depositional environment that was trans- formed to a shallow marine paleoenvironment with lagoonal features (Unit B) after 7800 BP. Since about 4800 BP a closed oligohaline lagoon (Unit C) used for graz- ing, occurred in the area, while after 2800 BP a marshy oligohaline depositional environment (Unit D) and signs of intensive agricultural activities are evidenced. The very good correlation of benthic foraminiferal, palynological and magnetic sus- ceptibility data and resulted indices is indicative of the potential of the applied methodologies as a paleoenvironmental tool box. Key words: benthic foraminiferal, pollen, NPPs, magnetic susceptibility, Holocene. Περίληψη Η ȝİȜȑIJȘ IJȘȢ ȜİπIJȠȝİȡȠȪȢ παȜαȚȠπİȡȚȕαȜȜȠȞIJȚțȒȢ İȟȑȜȚȟȘȢ ȖȚα IJα IJİȜİυIJαȓα πİȡȓπȠυ λίίί χȡȩȞȚα ȕαıȓıIJȘțİ ıİ αȞȐȜυıȘ IJωȞ ȕİȞșȠȞȚțȫȞ IJȡȘȝαIJȠφȩȡωȞ, IJωȞ ȖυȡİȩțȠțțωȞ țαȚ «ȐȜȜωȞ» παȜυȞȩȝȠȡφωȞ țαȚ IJȘȢ ȝαȖȞȘIJȚțȒȢ İπȚįİțIJȚțȩIJȘIJαȢ IJωȞ απȠșȑıİωȞ IJȘȢ παȡȐțIJȚαȢ πİįȚȐįαȢ IJȠυ ȆİȚȡαȚȐέ ΔȚαțȡȓșȘțαȞ πȑȞIJİ ȜȚșȠıIJȡωȝαIJȠȖȡαφȚțȑȢ-παȜαȚȠπİȡȚȕαȜȜȠȞIJȚțȑȢ İȞȩIJȘIJİȢ țαȚ υπȠİȞȩIJȘIJİȢ, ıIJȚȢ ȠπȠȓİȢ țαIJαȖȡȐφİIJİ Ș İȟȑȜȚȟȘ IJȘȢ πİȡȚȠχȒȢ απȩ ȝȓα αȡχȚțȐ țȜİȚıIJȒ ȠȜȚȖȩαȜȘ ȜȚȝȞȠșȐȜαııα (Unit Aa) αȡχȚțȐ ıİ ȝȚα αȞȠȚțIJȒ (Unit Ab) țαȚ ıIJȘ ıυȞȑχİȚα, πİȡȓπȠυ ικίί ȑIJȘ πȡȚȞ