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Abstract

The aim of the project Norse Farming in Greenland: Agriculture on the edge was to determine whether the Norse farmers actually cultivated crops in Greenland during colonisation in the Viking age and the medieval period. This was investigated by analysing macrofossils extracted from soil samples of middens, combined with phosphate analyses of the area around Norse farmsteads. In three field seasons 450 kg of soil was sampled from 12 Norse farmsteads together with samples for phosphate analysis covering an area of 12 ha from two farmsteads. The soil samples contained numerous seeds from wild plants giving information about the local vegetation. Charred grains and threshing waste of barley was found in samples from four sites, strongly indicating that barley was cultivated in Greenland by the Norse farmers. The phosphate analyses showed no sign of any deliberate manuring of the infields as high concentrations of phosphate were only found around the houses and pens.
... comm.). Large quantities of charred A. nodosum thallus fragments found in middens at sites in the Norse Greenlandic Eastern Settlement have been interpreted as evidence for the use of seaweed for fuel (Henriksen 2016), but given that the cultivation and processing of flax in Norse Greenland is known from archaeological and palaeoenvironmental evidence seaweed ash may have also been used in flax processing there (cf. Østergård 2009). ...
... The use of seaweed as fuel is often suggested as an interpretation for archaeological finds of charred fragments (e.g. Donaldson et al. 1981;Hunter 1986;Donaldson & Nye 1989;Dickson 1994;Dockrill et al. 1994;Adams et al. 2012;Murray & McCormick 2012;Bending 2014;Henriksen 2016) and the use specifically of A. nodosum as a fuel resource in Iceland is known from ethnohistorical sources (Hallsson 1964;Kristjánsson 1980). Seaweed was also used as fuel in ritual activities. ...
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Seaweed forms an important element of diet in many parts of the world and has a wide variety of other uses due to its high mineral content. However, while seaweed remains are relatively frequently reported from archaeological contexts, its use in the past in northern Europe is little understood. Over the past two decades, charred remains of Fucus-type seaweed have been recovered from excavations of sites in Scandinavia and the North Atlantic mostly dated from the Iron Age to the Early Medieval period. At some locations charred seaweed appears to be associated with industry, such as the ironworking sites of Vatnsfjörður and Lækjargata 10–12 in Iceland, and the silversmithing site of Sømme in southwestern Norway. At others charred seaweed finds have been variously interpreted as being related to the preservation of food, agriculture, and textile processing. Furthermore, ethnohistoric evidence documents burnt seaweed being used as fertiliser in arable fields, and seaweed ash is also known to have been historically used in glass manufacture. This paper examines how archaeologists can recover, recognise and interpret charred seaweed remains from archaeological sites, with a particular focus on finds from Iceland.
... European whalers and traders established contact with these Thule (later Historic Inuit) communities up and down the west coast at different points during the sixteenth and seventeenth centuries, later followed by the founding of the first Danish-Norwegian mission at Haabet Øe in 1721 by Hans Egede (1686-1758) near the present-day capital of Nuuk (Amdrup, Louis Bobé, and Steensby 1921). All of these past cultural groups - Paleo-Inuit, Norse, and Thule -have left behind incredible records of their settlement and livelihood in the Nuuk fjord, much of it in preserved in middens that possess a remarkably high archaeological state of preservation as a result of favourable preservation conditions of the cold climate (see Gulløv 1983;Grønnow 1994;McGovern et al. 1996;Gulløv 1997;Henriksen 2016). ...
... As a direct result of these activities many sites now see a proliferation of opportunistic species of vegetation that slowly 'moved in' to fill the cleared areas. Impact from other human activities, such as farming, was not observed at any of the sites visited in this study and this phenomenon is currently observed only at archaeological sites in South Greenland (Henriksen 2016;Vésteinsson 2016). This reflects the nature of the Nuuk fjord study area which is too far north in latitude to allow for any sustainable agricultural activities (however, this may change in the coming years as Inuit sheepherding is being reintroduced after a 50-year hiatus, see: https://knr.gl/kl/ ...
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Evaluating the rate of deterioration at archaeological sites in the Arctic presents several challenges. In West Greenland, for example, increasing soil temperatures, perennial thaws, coastal erosion, storm surges, changing microbial communities, and pioneer plant species are observed as increasingly detrimental to the survival of organic archaeological deposits found scattered along the country’s littoral zones and extensive inner fjord systems. This article discusses recent efforts by the REMAINS of Greenland project for developing a standardised protocol that defines the archaeological state of preservation, the preservation conditions, and asset value of organic deposits. Special emphasis is given to the degradation of materials such as bone and wood that are historically observed to be well-preserved in Greenland but now currently at risk. The protocol provides a baseline for monitoring future changes and will assist archaeologists in Greenland with a procedure for documenting and predicting areas of increasing vulnerability due to a warming climate.
... There are many examples of the use of seaweed from Iron Age and Viking Age in North west Europe. In a study of middens from Norse settlements in Greenland, carbonised seaweed was found as refuse from the households at almost all the investigated farms (Henriksen 2016). Sea weed used as fuel is known from the Faroe Islands (Bend ing 2014) and the Orkney Islands (Dickson 1994). ...
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Strontium (Sr) isotope analyses were performed on a number of individual charred grains of barley recovered from two selected Norse middens (Ø35; Ø49) in southwestern Greenland. The two middens were chosen because remnants of barley had been found in them in a previous project. Here we investigate whether barley was grown locally by the Norse or whether it was imported from Europe. While the Sr isotope signatures in each of the middens are in themselves homogenous through their depth profiles, they are distinctly different in each of their location (site Ø35 with an average 87Sr/86Sr = 0.70728 +/- 0.00058 (n = 5; 2σ).; site Ø49 with an average 87Sr/86Sr = 0.70978 +/- 0.00018 (n = 5; 2σ)). These compositions likely represent the homogenized signatures impacted by foodstuffs, mainly bones of domestic animals, fish, whales and seals as major dietary constituents. There is an additional contribution of local bioavailable strontium from the immediate surroundings, as emphasized by the strontium isotope signatures of soil extracts, plants and surface waters that are different from seawater strontium. Strong hydrochloric acid leaching of the barley grains, despite removal of > 90 % of the labile strontium, only led to insignificant isotopic changes in the first residuals attacked by aqua regia. A second aqua regia attack however was successful in recovering systematically more radiogenic 87Sr/86Sr signatures in both sites (87Sr/86Sr = 0.711 to 0.718) than those characterizing the respective midden signatures. At Ø49 these are compatible with the environmental soil extracts and plants, while at Ø35 the barley signatures resemble those recovered from site Ø49 and most likely imply local cultivation of barley in the nearby elevated terrains around the sites which are dominated by granitoid basement rocks of the Paleoproterozoic Ketilidian Province. Import of barley from Norway can however not be excluded as bioavailable strontium from some areas along the western coast and inner fjords has the same signature. Our results imply an effective adsorption of strontium from the midden onto the charred grains, making it difficult to fully extract the original strontium isotope biosignature of the barley. The 14C dating of the middens show that they had been extensively disturbed and reworked during their period of use, making it impossible to establish a reliable chronological stratigraphy. However, overall, the dates indicate that Ø35 was established in the early 1000 s and operated for at least a couple of centuries. The midden at Ø49 was likely established in the mid-1000 s and operated at least until the mid-1200 s.
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