Archaeologia Islandica - 01.01.2015, Page 60

Archaeologia Islandica - 01.01.2015, Page 60
Scott Riddell Jarðabók although there is variability in the degree of dependence from one region to the next (Guðmundsson 1944; Kristjánsson 1980, 312-18; Amorosi 1990). Later hunt- ing activity is also visible in the archaeolog- ical record as is the link between the coast and the interior (Ogilvie et al. 2009). In 1992 zooarchaeologist Thomas Amorosi published the findings of an ar- chaeological excavation of a farm midden at Svalbarð in northeast Iceland (Amorosi 1992). The midden was found to contain a high percentage of seal bones; more than have been found at other archaeologi- cal sites in Iceland to date. This seal bone assemblage was primarily composed of material derived from the common seal Phoca vitulina and harp seal Pagophilus groenlandicus with the bones situated in a stratigraphy that spanned the period 1050- 1800. The dating sequence was derived from tephra layers and the stylistic char- acteristics of specific artefacts e.g. bone combs. The sudden appearance of quanti- ties of harp seal bone in the 17th century in association with bone fragments of bearded seal Erignathus barbatus, walrus Odobenus rosmarus and polar bear Ursus maritimus, was attributed to the appearance of drift and pack ice in the vicinity of Svalbarð at this time. Drift ice is also cited as a possi- ble cause for an increase in lamb mortal- ity that coincided with the appearance of the Arctic mammals. These features of the archaeofauna were seen as a consequence of climate cooling during the 17th and 18th centuries, the height of the Little Ice Age (LIA), with the exploitation of harp seals seen as an indicator of sea ice and hard times provisioning (Amorosi 1989, 1990, 1992 & 1996, 303). Amorosi (1990, 1992) has also suggested that the presence of harp seal bone in the assemblage is indicative of a dramatic alteration in the distribution of North Atlantic drift ice. In particular, the presence of neonate harp seal bone (less than 1 month old) presented the possibil- ity that there was a stable whelping area in close proximity to Iceland during the 17th and 18th centuries (Amorosi 1992 & 1996, 303). Although a recent reassessment of the tephra sequences has called the Svalbarð chronology into question (Woollett 2008) the association of harp seal bone with sea ice near Iceland persists in the archaeologi- cal literature (Amorosi 1996; Amundsen et al. 2005; Pálsdóttir 2006; Harrison et al. 2008a & 2008b; Woollett 2008; Hicks & Harrison 2009; McGovern 2009; Ogilvie et al. 2009; Hamilton-Dyer 2010; McGovern et al. 2013, Harrison 2014). Moreover, the notion that the presence of harp seals in the archaeological record is a consequence of climate cooling and subsistence stress also endures (Byock 2001, 353; McGovern et al. 2001; Ogilvie et al. 2009; McGovern et al. 2013). However, should the interpre- tation of the Svalbarð assemblage apply to all instances of harp seal bone in the 58

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