Compilation of a Resistivity Atlas of Danish lithologies based on direct resistivity measurements and wireline logging data

Ingelise Møller; Flemming Jørgensen; Verner H. Søndergaard; Claus Ditlefsen; Anders V. Christiansen

doi:10.1071/ASEG2015ab168

24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery

ISSN: 2202-0586
E-ISSN:

oa Compilation of a Resistivity Atlas of Danish lithologies based on direct resistivity measurements and wireline logging data
Authors Ingelise Møller^a, Flemming Jørgensen^b, Verner H. Søndergaard^c, Claus Ditlefsen^d and Anders V. Christiansen^e
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^a Geological Survey of Denmark and Greenland, , GEUS Lyseng Allé 1, 8270, Højbjerg, , Denmark, [email protected] ^b Geological Survey of Denmark and Greenland, , GEUS Lyseng Allé 1, 8270, Højbjerg, , Denmark, [email protected] ^c Geological Survey of Denmark and Greenland, , GEUS Lyseng Allé 1, 8270, Højbjerg, , Denmark, [email protected] ^d Geological Survey of Denmark and Greenland, , GEUS Lyseng Allé 1, 8270, Højbjerg, , Denmark, [email protected] ^e Geological Survey of Denmark and Greenland, , GEUS Lyseng Allé 1, 8270, Højbjerg, , Denmark, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2015, Issue 24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery, Dec 2015, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2015ab168
- Published online: 01 Dec 2015

Abstract

Electrical conductivity, or its inverse, the resistivity, is an important geophysical property within groundwater mapping. It is known to correlate empirically to lithology, primarily through clay minerals and pore water ions. Although, in Denmark, geoelectric and electromagnetic surveys have been carried out for decades, no systematic, nationwide study on the relationship between resistivity and lithology has been carried out.

We present a procedure for generating a resistivity atlas based on resistivity measurements, which can be related directly to specific and well described soil samples. Data are obtained from archives, literature and the Danish national databases. The procedure implies a restricted use of wireline logging data in combination with direct measurements on samples, resulting in resistivity distributions for specific lithologies or geological formations. The use of documented high-quality data ensures reliable results, reflecting actual resistivity of a specific lithology.

This procedure is illustrated on clay till. The resistivity variations obtained for this lithology seems to be related to real compositional variations, which reflect the process of forming the clay till.

Our procedure is likely to provide equally reliable results for other main lithologies. Future detailed studies, in particular on sediments with low clay content, should consider resistivity differences related to the degree of saturation and variations in the formation water resistivity.

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References

Hansen, M, and Pjertursson, B., 2011, Free, online Danish Shallow geological data: Geological Survey of Denmark and Greenland Bulletin, 23, 53-56.
Jargensen, F., Sandersen, P. B. E., Auken, E., Lykke-Andersen, H., and Sarensen K., 2005, Contributions to the geological mapping of Mors, Denmark - A study based on a large-scale TEM survey: Bulletin of the Geological Society of Denmark, 52, 53-75.
Maller, I., Sandergaard, V.H., Jargensen, F., Auken, E., and Christiansen, A.V., 2009, Integrated management and utilization of hydrogeophysical data on a national scale: Near Surface Geophysics, 7, 647-659.
Pedersen, S.A.S., Hermansen, B., Nathan, C. & Tougaard, L. 2011: Digitalt kort over Danmarks jordarter 1:200.000, version 2. Geologisk kort over de overfladenasre jordarter i Danmark. Danmarks og Granlands Geologiske Undersagelse Rapport 2011/19
Sandersen, P., and Jargensen, F., 2003, Buried Quaternary valleys in western Denmark--occurrence and inferred implications for groundwater resources and vulnerability: Journal of Applied Geophysics, 53, 229-248.
Sandersen, P., Jargensen, F., Larsen, N K, Westergaard, J. H., and Auken, E., 2009, Rapid tunnel-valley formation beneath the receding Late Weichselian ice sheet in Vendsyssel, Denmark: Boreas, DOI 10.1111502-3885.2009.00105.X, 1-18.
Sarensen, K.,I., Auken, E.; Christensen, N.B., and Pellerin, L., 2005, An integrated approach for hydrogeophysical investigations: New technologies and a case history. In: Butler, D. (ed.): Near-surface Geophysics Part II, SEG Investigations in Geophysics, 13, 585-603. Society of Exploration Geophysics.

/content/journals/10.1071/ASEG2015ab168

Article Type: Research Article

Keyword(s): electrical methods; lithology; petrophysical relationship; Resistivity

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