| 11. |
- Alkarp, Magnus, et al.
(författare)
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Tempel av guld eller kyrka av trä? : markradarundersökningar vid Gamla Uppsala kyrka
- 2006
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Ingår i: Fornvännen: meddelanden från K. Vitterhets, historie och antikvitets akademien. - 0015-7813. ; :1, s. 261-272
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Tidskriftsartikel (refereegranskat)abstract
- In 1164 the "archbishopric of Sweden" was established at "Gamla Uppsala", once the political centre of the "Svear kingdom" in the late Iron Age and a stronghold of pre-Christian cult. This highly symbolic decision was manifested through the construction of one of the largest churches in Scandinavia.The cathedral church at Gamla Uppsala was allegedly built on the same spot as the famous "pagan temple2 described by "Adam of Bremen" in the early 1070s. Excavations carried out there in 1926 revealed a highly complex stratigraphic sequence and a confusing set of postholes that were immediately interpreted as the remains of the temple. Though still maintained today in school textbooks and elsewhere, this conclusion is clearly erroneous as the postholes can be shown stratigraphically to belong to different phases of construction.The exact events of the period c. 1050-1150 in Gamla Uppsala have never been satisfactorily understood, but there is clear evidence to suggest that the cathedral was by no means the first church to have been built on the site. In an effort to elucidate this early history of the church plateau, in 2003-04 the authors examined the area with ground-penetrating radar. In this paper we discuss some of the more important results of these investigations.
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| 12. |
- Gustafsson, Jaana, et al.
(författare)
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Array GPR investigation of the cathedral of Uppsala
- 2007
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Ingår i: Near surface geophysics. - 1569-4445. ; 5:3, s. 203-207
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Tidskriftsartikel (refereegranskat)abstract
- In this paper an example of a so-called array GPR investigation outside the Cathedral of Uppsala, Sweden is shown. The aim with the investigation was to reveal historically interesting features in a surrounding where excavation is not allowed. In the investigation 17 different GPR antennas of the same frequency was used to give measurements in 16 parallel profiles simultaneously. When several separate transmitter and receiver antennas are combined into one single antenna array unit, exactly positioned parallel profiles are gained, resulting in a seamless high-resolution 3D picture of the subsurface. Processing the radar data into the resulting images involves several steps as aligning traces, removing static shifts and match the mean response. Radar data is merged with geometry data from a total station (used to track the position of the antenna array) and then gridded and migrated. The resulting pictures in form of time slices gave in the presented Uppsala case the archaeologists very valuable help to understand the subsurface and map historical anomalies. The findings points on older paths and early medieval streets among others.
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