Archaeologia Islandica - 01.01.2009, Side 70

Archaeologia Islandica - 01.01.2009, Side 70
Heather B. Trigo et al. plants such as chickweed (Stellaria), Polygonum, several types of wetland sedges (Cyperaceae), and a few grasses (Poaceae). While the proportions of chaiTed to uncharred seeds change across taxa, for the most part, we found both charred and uncharred seeds of the same type. This fact, combined with the integ- rity of the stratigraphy and the presence of charred, partially charred, and uncharred wood and dung suggest to us that the uncharred plant materials were not later contaminants, but instead relate to the archaeological deposits. Interpretation The presence of charred dung and charred wood suggest that the people of Reynistaður were utilizing both types of fuel. Charred seeds are visible in the dung (Figure 6), so we believe that the dung is the source of at least some of the plant materials. In contrast to other Icelandic archaeological deposits (Nordahl 1988; Ross and Zutter 2007; Zutter 1999), the seed assemblage is not particularly diverse, being dominated by only two taxa. This lack of diversity may also indicate a single, limited, source for the seed assemblage: the dung. Both human and animal components to dung deposits have been identifíed at the Gjogur midden in Iceland (Ross and Zutter 2007), but with the exception of the barley, none of the plant remains appear to relate to plant foods typically consumed by people such as blueberries/ cranberries (Vaccinium) or crowberries (Empetrum). We believe that the majority of the seeds and some of the smaller plant materials come from livestock dung and thus relate to foddering or grazing prac- tices. A substantial portion of the seeds were Taxon Count % Hordeum kemels 10 3% Hordeum glumes 1 0% Hordeum rachis 3 1% Caryophyllaceae* 147 49% Polygonum 3 1% Cyperaceae 124 41% Poaceae 12 4% Total 300 - *predominantly Stellaria Table 1. Seeds and Related Plant Parts Recoveredfrom Layer 11. uncharred or only partially charred. This suggests that if dung was being bumt purposefully at Reynistaður, then it was being bumed at very low temperatures (see Simpson et al 2003 for a discussion of burning temperatures). It is hard to imagine that at this early date at Reynistaður that any type of fuel was in short supply. Therefore, it is possible that the dung was not bumed for heat but rather for its smoke to preserve food (e.g., Hangikjöt). The plant remains indicate that barley was consumed at Reynistaður. While the presence of rachis fragments may merely be a norrnal component of poorly cleaned grain stores, they may also signal that barley was grown nearby. Moreover, the presence of these plant parts among pieces of charred and uncharred dung indicate that the barley may have been eaten by the livestock, which perhaps were allowed to graze on harvested fields or were fed grains and harvesting waste. Ethnographic accounts and archaeologi- cal data indicate that grains and chaff that were deliberately fed to livestock as fod- der are evident in the dung (Valamoti and Charles 2005; Derreumaux 2005). 68

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