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Projects: 06/2004 Magnetic prospection |
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Project:
Geomagnetic survey at the Kurgan Barsuchij Log |
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On site topographic mapping and surveying.
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Location:
near Abakan, Republic of Chakassija / Russian Federation |
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Client:
DAI (German Archaeological Institute) Berlin
Prof. Dr. Hermann Parzinger
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Target:
Geomagnetic prospection at the Kurgan Barsuchij Log previous to the excavation. Investigating
a pyramid of 50 m side length and 9 m height accrues about 7500 cubic metres of structural material.
The surroundings of the Kurgan were mapped systematically before the excavations started to
avoid that potentially existing traces of the burial ceremonial are covered. |
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Operations:
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Geomagnetic survey with the established Fluxgate-Array provided a very high pixel density
due to the narrow profile and measuring point distance.
With gradients of up to 25 % the accurate projection of anomalies in the magnetogram was only
possible together with a 3D topographic survey.
At the same time Russian geophysicists from Novosibirsk applied their newly developed technologies
at the Kurgan Barsuchij Log. Their approach induces electromagnetic fields at several
frequencies to reach different depths of penetration.
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Results:
Different levels of information about the Kurgan
are provided by the results of topographic survey and geophysics. The topographic survey
uncovers magnetic anomalies which are produced by topographic effects. Vice versa, the geophysics
visualise the connected quadratic building structure of the fence which was previously presented
as a concentric construction when applying the conventional building inspection to the outstanding
stones.
Kurgan Barsuchij Log - geomagnetic map corresponding to a digital terrain model.
The disturbance due to illicit excavations and the quadratic sandstone fence are visible.
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Contact persons:
Prof. Dr. Hermann Parzinger (praesident@dainst.de)
Dipl.-Geophys. Burkart Ullrich (info@eastern-atlas.com)
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Links:
UIGGM - the Institute of Geophysics in Novosibirsk
(http://www.uiggm.nsc.ru/uiggm/geophysics/indexe.htm) |
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