Ancient Poliochni is one of the oldest excavated cities in the Aegean Sea and its connection with the sea is indisputable and diachronic during the city habitation from 3500/3300 BC to 2000/1900 BC. The research focuses on the palaeogeographical evolution of the city valley, the coastal zone, and the nearshore seabed. On land, the study area is the lower part of the river valley located between the archaeological site and the foothills of the Agia Triada coastal hill. Data were acquired by geomorphological and geophysical research, drillings (up to 14.5 m depth) stratigraphical and paleontological analysis, and high accuracy topography using GNSS receivers and Unmanned Aerial Vehicles (UAVs). The marine survey extends to the entire Voroskopos (Poliochni) Bay including satellite image analysis, single-beam echo soundings, side-scan sonar seafloor detection and imaging, and visualization of special seabed features. Ancient Poliochni was founded on a coastal terrace shaped by the erosive action of the waves on the hard formations of the Limnos Island geological basement. The seabed morphology and geology of the Poliochni Bay shows that it was part of the coast, during the city habitation, in a progressively flooded by the rising sea level coastal environment.

Sediment cores of 4m were sampled in Epanoni coastal lagoon basin in Eastern Thermaikos Gulf. Within this study, we present results of Magnetic Susceptibility (MS) measurements and sedimentological analysis (XRD and grain-size distribution) for the first meter EP1-1 aiming to contribute to the reconstruction of the paleoclimatic regime in Thermaikos Gulf during the Holocene. Based on MS and XRD, we concluded that probably a wet episode is reflected at 3760±25 BP resulting in greater material transfer with higher values of magnetic susceptibility. The increased ratio of the coarser sediments in depths 40-50cm suggests an increased run-off. Subsequently that, the presence of gypsum in the upper layers of 14-39cm depth indicates a dry period with intense evaporation.

The Anthemous Valley Archaeological Project is a cooperation between Greek and Polish scientists aiming towards archaeological recognition of the northern Aegean within the alluvial Anthemous Valley. The methodology of the project consists of the multidisciplinary tools of settlement archaeology and geoarchaeology. The timeframe spans the prehistoric periods from the Neolithic to the Early Iron Age. One of the main research tasks is to reconstruct the evolution of the landscape in close reference to the cultural changes in the region. To date, all sites within the valley have been catalogued and identified through archaeological prospection and some with the use of geophysical survey. The results point to an intensive occupation in the past, especially during the Bronze Age. Geoarchaeological research was conducted in the tell of Nea Raedestos, which has shown major landscape transformations in the Holocene due to river activity. The current work focuses on the mouth of the Anthemous River to reconstruct the progradation processes and formation of the deltaic plain in relation to prehistoric human occupation of this area.

Research has shown that fluvial systems exhibit a rapid response to extreme events, such as floods or climatetectonic interplay, the evidence of which is recorded in fluvial sediments. This article provides new data and insights into the reconstruction of the Anthemountas River depositional environment. The study was conducted with granulometric analysis and with the lithostratigraphic and chronostratigraphic description of approximately 20000 yr B.P., the area's most extended sedimentary sequence to date. The evolution of the Anthemountas River Valley during the Late Pleistocene and Holocene is closely linked to tectonic activity and changes in the sea-level and climate. The interpretation of grain size cumulative curves, frequency curves, and the Passega C-M diagram is used in conjunction with the textural parameters of the sediments to obtain information about the means of transport and the intensity of environmental conditions. In addition, the loss on ignition method was used to estimate two parameters; organic matter and carbonates. Chronostratigraphic details were also obtained from the A.M.S. dating of charcoal samples. The analysis has identified the Late Pleistocene aggradation materials and the transition to the Holocene. Sedimentation can be described as a fluvial valley-fill sequence with periodical inchannel, off-channel, and floodplain series. After 3500 cal. B.P., the area is affected by the possible formation of a bay-head delta, with fluvial-dominated sands and the development of stable floodplains. Finally, the fluvial records of the Anthemountas River reveal phases of hydrological activity and stability.

The aim of the present study is to investigate the sedimentological characteristics of Lake Koronia down to a depth of 3.5m below lake bottom. Sampling operations took advandage of a season that the lake bottom was exposed to subaerial conditions. The sedimentological analysis proved that sediments consist of mud to sandy mud, with 2 phases of very fine sand fractions. The proportion of dry organic matter contained into sediment, appears to be generally small while the rates of moisture and volatiles are relatively high. Furthermore, this study examines the distribution of ostracod populations in the sediments of the lake in relation to depth, grain size and other environmental conditions of this water body. Four ostracod species were identified: Candona neglecta, Darwinula stevensoni, Heterocypris spp. and Limnocythere inopinata. The study of freshwater ostracods provides information for the palaeoecological/palaeoenvironmental conditions during the sedimentation.