Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/1464
AuthorsMauriello, P.* 
Monna, D.* 
Bruner, I.* 
TitleExamples of ac resistivity prospecting in archaeological research
Issue DateAug-1998
Series/Report no.41/3
URIhttp://hdl.handle.net/2122/1464
Keywordsapplied geophysics
archaeological prospecting
geoelectric
alternating current
Subject Classification04. Solid Earth::04.05. Geomagnetism::04.05.99. General or miscellaneous 
AbstractIn this paper we present the results of an alternating current resistivity survey, with a view to future tomographic processing. Two examples are given to evaluate the validity and the resolution of the method. The first in the Sabine Necropolis of Colle del Forno (Montelibretti, Rome), the second in the Etruscan settlement of Poggio Colla (Vicchio, Florence). All the measurements were carried out utilising current up to 512 Hz and a mobile dipole MN along straight lines, having two fixed current probes A and B. It was found that skin effect is uninfluential in the frequency range adopted. Given the absence of natural or artificial disturbances in the signal (e.g. electrode polarization and self potential), it was possible to perform very fast measurements with two operators only. Moreover, the use of a multiple dipole source configuration allows the calculation of the determinant of the apparent resistivity tensor. In the examples shown, this parameter detects the actual position of buried structures independently of the direction of the electric sources.
Appears in Collections:Annals of Geophysics

Files in This Item:
File Description SizeFormat 
11 mauriello.pdf1.71 MBAdobe PDFView/Open
Show full item record

Page view(s)

73
Last Week
0
Last month
0
checked on Jul 24, 2017

Download(s)

103
checked on Jul 24, 2017

Google ScholarTM

Check