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Resistivity and Georadar Survey on the Nazca LinesNormal access

Authors: A. Weller, M. Eidner, S. Rosas and K. Hartsch
Event name: Near Surface Geoscience 2012 – 18th European Meeting of Environmental and Engineering Geophysics
Session: Archeological prospection
Publication date: 03 September 2012
DOI: 10.3997/2214-4609.20143310
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 1.47Mb )
Price: € 20

Summary:
The investigation of shallow structures beneath the Nazca lines aims at a better understanding of the alteration and weathering processes of the desert soils. Suitable geophysical, mineralogical, geochemical, and geotechnical methods should be identified. Our paper reports the application of a combined resistivity and georadar survey at a single test site. The resulting images of the two methods indicate similar structures. Georadar enables a fast and continuous data acquisition but is restricted in its depth of penetration in dependence of the nominal frequency. The slower resistivity imaging reveals structural features up to a depth of 3.5 m.


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