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Title: | Delineation of graves using electrical resistivity tomography |
Authors: | Nero, Callistus Aning, Akwasi Acheampong Danuor, Sylvester K. Noye, Reginald M. |
Keywords: | Electrical resistivity tomography Graves Gradient array Cemetery Roll-along Forward modeling |
Issue Date: | 21-Jan-2016 |
Publisher: | Elsevier B.V. |
Citation: | C. Nero et al. / Journal of Applied Geophysics 126 (2016) 138–147, Delineation of graves using electrical resistivity tomography, doi.org/10.1016/j.jappgeo.2016.01.012 0926-9851 |
Abstract: | A suspected old royal cemetery has been surveyed at the Kwame Nkrumah University of Science and Technology
(KNUST) campus, Kumasi, Ghana using Electrical Resistivity Tomography (ERT) with the objective of detecting
graves in order to make informed decisions with regard to the future use of the area. The survey was conducted
on a 10,000 m2 area. Continuous Vertical Electrical Sounding (CVES) was combined with the roll along technique
for 51 profiles with 1 m probe separation separated by 2 m. Inverted data results indicated wide resistivity variations
ranging between 9.34 Ωm and 600 Ωm in the near surface. Such heterogeneity suggests a disturbance of
the soil at this level. Both high (≥600 Ωm) and low resistivity (≤74.7 Ωm) anomalies, relative to background
levels, were identified within the first 4 m of the subsurface. These were suspected to be burial tombs because
of their rectangular geometries and resistivity contrasts. The results were validated with forward numerical
modeling results. The study area is therefore an old cemetery and should be preserved as a cultural heritage site. |
Description: | An article published by Elsevier B.V. and also available at http://dx.doi.org/10.1016/j.jappgeo.2016.01.012
0926-9851 |
URI: | http://hdl.handle.net/123456789/12637 |
Appears in Collections: | College of Science
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