Resistivity imaging as a tool for rock quarry planning

In the aggregate industry the use of geophysical measuring is rare. The aim of this project is to investigate how geophysical instruments can be a tool in prospecting for rock quarries, and also how they can be a help in which direction they should expand in. To have control over the quality of the aggregates is important and therefore to know when the rock mass is changing is of interest for the production. Two quarries, with different properties, were investigated with different geophysical methods, of which only the result from the electrical measurement is presented here. The fracture frequency was measured as well for comparison. The depth to the bedrock is visible in the inverted resistivity sections for the two sites, and an estimation of the quantity of the till is possible to make. It is also shown that the fracture frequency affects the resistivity of the bulk mass. The results also show that the resistivity imaging is well suited for detecting anomalies in the rock mass, which might affect the production.

Dahlin, T.Lund University,Lunds universitet,Teknisk geologi,Institutionen för biomedicinsk teknik,Institutioner vid LTH,Lunds Tekniska Högskola,Engineering Geology,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)tg-tda (författare)
Fernlund, J.KTH Royal Institute of Technology (författare)
KTH Royal Institute of TechnologyTeknisk geologi (creator_code:org_t)

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