Archaeologia Islandica - 01.01.2010, Page 120

Archaeologia Islandica - 01.01.2010, Page 120
OSCAR ALDRED, ELÍN ÓSK HREIÐARSDÓTTIR AND ÖSKAR GÍSLI SVEINBJARNARSON smaller impact on the archaeology than in many other European countries, it nonetheless has transformed former urban hinterlands. As mentioned above, much of the archaeology in Iceland consists of earthworks, and for the most part, negative features which produce cropmarks (crop growth in ploughed fields that shows the underlying negative features such as ditches and pits) and soilmarks (plough marks that have scorched the underlying features), do not constitute any appreciable component that is observable on aerial photographs in the country. Although buried archaeology does exist, especially in the wake of home field levelling after the war, it rarely constitutes infilled negative features (e.g. systems of ditches etc.) which are characteristic of lowland areas in other parts of Europe. Thus parchmarks (differential vegetation growth relating to underlying features) and related phenomena are also of limited value and the condition under which these types of sites are visible from the air depends on suitable longer term weather conditions, such as droughts which do not readily occur in Iceland. However, little research and systematic testing of areas have been carried out and therefore one cannot dismiss the presence of this type of aerial feature until more experimental and comparative studies have been made. It is likely that, under the right conditions in Copyright FSÍ & DigitalGlobe Incorporated, Longmont CO USA 80503-6493 Figure 4. Part of the area of Garðar, south-west Iceland, mapped for the Kortlagning fomleifa af gervihnattamyndum project - mapping of boundaries and other linear features using DigitalGlobe satellite imagery (Copyright DigitalGlobe Incorporated Longmont CO USA 80503-6493). 118
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Archaeologia Islandica

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