Consequences of Designating the Recent Past: Korreweg-district,Groningen, The Netherlands

The article focuses on the meaning of heritage, especially on its connection to time, space and people, and is concerned with signification, representation and identity at a national scale. Key questions are how the image of Estonianness creates national heritage out of diverse legacies and how these messages fit the local circumstances. This is examined in the case of Paldiski, a small town on the Pakri Peninsula west of the Estonian capital Tallinn. The area encompasses all that is considered non‐Estonian, but nevertheless reflects the history and geography of the country and thus is used for critical examination of current heritage creation and preservation.     

Geoarchaeology of Ancient Aulis (Boeotia,Central Greece): human occupation and Holocene landscape changes

This article presents the results of a coring operation which brought to light new evidence for the evolution of the coastal plain of Aulis (Boeotia, Central Greece) in the Holocene. Thanks to Homer, Aulis is best known as the gathering point of the Achaean fleet before it sailed to Troy and a sanctuary of the goddess Artemis. Ancient sources and archaeological evidence suggest the presence of an ancient marine bay, potentially used as a harbor. In the course of investigation, we drilled two cores, to a maximum depth of 4.20 m in the marshy lowlands and performed mollusc and micro-paleontological identifications, laser grain size analyses, and magnetic susceptibility measurements in order to reveal the facies evolution of the area. We obtained a chronostratigraphy sequence through a series of seven AMS ¹⁴C radiocarbon dates. Our study shows that the area was affected by a shallow marine incursion from the first half of the 6th millennium BC and gradually turned into a succession of shallow marine/lagoon environments from ca. 5000 cal. BC to the 2nd Century AD, and into a confined lagoon environment during the Roman and Byzantine periods.     

Marine Quaternary dinoflagellate cysts of Australia,Papua-New Guinea,New Zealand and the Southern Ocean: a review

Dinoflagellate cysts are widespread in Australian, Papua-New Guinea, New Zealand and Southern Ocean Pleistocene and Recent marine sediments. They occur in estuaries and deltas as well as on the continental shelf and in ocean basins. They have proven invaluable in palaeoecology for the interpretation of changing temperature, salinity and distance from shore in particular. These changes have also been used to examine climate change in Quaternary sequences. A small number of First Appearance Datums (FADs) and Last Appearance Datums (LADs) within this time period allows only limited biostratigraphic definition. LADs within the Pleistocene of southern Australia include Achomosphaera ramulifera and Spiniferites rubinus. Introduction within the past 50 years of several taxa, such as Gymnodinium catenatum and Gymnodinium microreticulatum, has been attributed to ballast water import.     

Reconstruction of the landscape history around the remnant arch of the Klidhi Roman Bridge,Thessaloniki Plain,North Central Greece

This paper deals with the palaeoenvironmental reconstruction of the area surrounding the remnant arch of the ancient bridge of Klidhi, Thessaloniki Plain, Greece. 19th century travellers and 20th century historians discussed the age of the monument and concluded that it was built during Late Roman Times (3rd Cent. AD) and supported a branch of the Via Egnatia road. However, few studies have considered the environmental context of the construction of the bridge, and until now, only two hypotheses have been presented: The bridge was built on or over a junction of the Aliakmon and Loudias Rivers, or on a coastal barrier. Within the framework of a geoarchaeological project developed in April 2008, five boreholes were drilled and the sediment cores analysed for microfauna and sedimentology. Seven ¹⁴C AMS dates provided a chronostratigraphic sequence and helped to define the geomorphological evolution of the area. Spatial interpretation of the results was possible using a Landsat TM image (False Colour Composite – FCC). Our data indicate the gradual transition of the site from a marine to a terrestrial environment during Ancient Times. Lagoonal conditions dominated during the construction of the bridge and the presence of a palaeochannel of the Aliakmon River was later revealed (transition from Byzantine and Ottoman periods), overlying sediments of a coastal barrier.     

The age of the Drake Passage

The distribution of benthic foraminifera in Miocene deposits of the continental margin of southeastern South America is compared with that in the Recent. The comparison indicates that Miocene zoogeographic boundaries were located in higher latitudes than at present, suggesting that the climate at that time was warmer than now. In the Pliocene, temperatures were lower than at present. This signifies that a considerable decrease in water temperature took place in the latest Miocene or at the Miocene/Pliocene boundary in the southwestern Atlantic. The main reason for this drop in temperature was the opening of the Drake Passage and the establishment of the Circumpolar Antarctic Current and a branch — the Malvin Current. The opening resulted from strong orogenic movements, in the latest Miocene, which created the main part of the Andes. Prior to the opening of the passage, the anticyclonic (counterclockwise) gyre of surface currents in the South Atlantic was much larger and warm Brazilian waters reached higher latitudes. The Austral Strait, connecting the Pacific and Atlantic Oceans, may have existed from the Cretaceous in the southern part of South America, but its location and character did not permit the establishment of the true Circumpolar Antarctic Current. The Austral Strait was closed simultaneously with the opening of the Drake Passage.