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Copenhagen, Denmark

Lemdahl G.,Linnaeus University | Buckland P.I.,Umea University | Mortensen M.F.,The National Museum of Denmark
Quaternary International | Year: 2014

The Slotseng site represents Paleolithic settlements of the Havelte phase of the Hamburgian culture (c. 15 to 14calkaBP). The Lateglacial sediment stratigraphy of an adjacent kettle hole was studied in a multidisciplinary project, including the analysis of pollen, macroscopic plant remains, vertebrate bones, and insect remains. In this article the results from the insect analysis are presented. Twelve samples were analysed from a monolith, which chronologically spans from ca. 15,500 to 13,600calBP. 108 taxa of Coleoptera and 15 taxa of Trichoptera, Hemiptera, Megaloptera, Diptera and Hymenoptera were recorded. The beetle assemblages indicate an open heath environment with shrub and herb vegetation during this period, with only minor changes during the stadials and interstadials. This is in good agreement with the interpretations based on pollen and plant macrofossil analyses. The presence of dung beetles indicates that reindeer herds grazed in the vicinity of the site. A number of finds of the carrion beetle Thanatophilus dispar suggest that fish may have been a complementary food resource for the hunters at Slotseng. MCR reconstructions indicate arctic/subarctic climate conditions during the periods GS-2a (Pre-Bølling) and GI-1d (Older Dryas) with mean summer temperatures ~9-13°C and mean winter temperatures ~-3 to -20°C. During the interstadials GI-1e (Bølling) and GI-1c (Allerød 1) mean summer temperatures were ~14-16°C, but mean winter temperatures remained similar to those during the colder periods. The reconstructed environments and living conditions for the Paleolithic hunters show striking similarities with contemporaneous conditions reconstructed for Magdalenian/Azilian sites at Lake Neuchâtel, Switzerland. © 2014 Elsevier Ltd and INQUA.

Olstad T.M.,The Norwegian Institute For Cultural Heritage Research NIKU | Stornes J.M.,The Norwegian Institute For Cultural Heritage Research NIKU | Bartholin T.S.,The National Museum of Denmark
European Journal of Science and Theology | Year: 2015

The paper deals with the use of dendrochronology for dating and linking a small group of late medieval triptychs in Norway. After a short introduction to dendrochronology, the triptychs are described as well as the photographic dendrochronological examination method used in the project. The results of the dendrochronological examination correspond with the dating given to the triptychs by art historians. © 2015, Ecozone, OAIMDD.

Eriksen A.M.,The Royal Danish Academy | Gregory D.J.,The National Museum of Denmark | Botfeldt K.,The Royal Danish Academy
International Biodeterioration and Biodegradation | Year: 2014

Since in situ preservation of archaeological material has become more widespread ( European Union, 1992) the need to stop an active attack of Teredo navalis, a wood-boring mollusc, on waterlogged archaeological wood has become more urgent. The aim of current study is to examine the ability of two plastic materials (TERRAM4000 and a plastic membrane) to stop both initial attack by T.navalis and their effects on wood with active woodborer degradation. Blocks of pinewood were submerged in the southern part of the Kattegat in Denmark, where shipworm is known to be prolific. After settling and attack had been confirmed, the blocks were removed and wrapped in either TERRAM4000 (polypropylene and polyethylene) or a proprietary plastic membrane (polyethylene), normally used on fishing piles or piers, as a protection against shipworm in Denmark. An optical oxygen sensor was packed together with each block to measure the amount of available oxygen around the wood. After one week the oxygen level around the test blocks wrapped in the plastic membrane had dropped drastically and lead to the death of all shipworms within the test blocks after one-four weeks. Although no new shipworm attacked the wood wrapped in TERRAM4000, the geotextile did not impede the passage of oxygenated seawater, as living individuals were found in the blocks after 46 weeks of wrapping and submersion. © 2013 Elsevier Ltd.

Petriaggi B.D.,ISCR MBACT | Gregory D.J.,The National Museum of Denmark
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2014

Underwater archaeological excavation represents a traumatic and essentially destructive event in the history of artefacts, especially organic, and its underwater context. Indeed, due to their fragility, organic archaeological materials from underwater sites can be challenging to excavate, support, raise and transport to conservation facilities. This is due to the inherent difficulties of working underwater (limited time and potentially harsh conditions) and in particular the crucial stage of lifting artefacts from the seabed to the surface where mechanical damage can easily occur. Block lifting of fragile archaeological materials is a useful procedure often adopted on land excavations and allows the collection of information which could be irretrievably lost during more rapid excavation. This procedure could be used with success to recover fragile objects on an archaeological underwater excavation thanks to the new materials and techniques tested and adopted in the SASMAP project (http://sasmap.eu) as will be discussed. © Springer International Publishing Switzerland 2014.

Hansen P.W.,The National Museum of Denmark
Scandinavian Economic History Review | Year: 2014

The main focus of this article is the connection between the social hierarchies and charities like almshouses in Danish urban society between 1700 and 1850. The almshouses and a whole range of other charities were exclusively targeted at those of the upper and middle classes who had fallen on hard times and could not be supported by their families. They were offered better material conditions than the poor of the lower classes. Thus, this kind of charity was both based on, and reinforced, a division of society in distinct social layers. At the same time, the exclusion of the lower-class poor shows that almshouses played an important role in shoring up social boundaries as well as social markers. © 2014 © 2014 Taylor & Francis.

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