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Authors: Gambetta, M.* 
Armadillo, E.* 
Carmisciano, C.* 
Stefanelli, P.* 
Caratori Tontini, F.* 
Cocchi, L.* 
Title: Integrated MVG and ERT Survey Over a Shallow Cave
Issue Date: 26-May-2009
Keywords: Karst Studied, Electrical Resistivity Tomography
Microgravity Vertical Gradient, Void detection
Subject Classification04. Solid Earth::04.02. Exploration geophysics::04.02.99. General or miscellaneous 
Abstract: An integrated geophysical MVG (Microgravity Vertical Gradient) and ERT (Electrical Resistivity Tomography) survey was performed over a shallow cave in the Armetta Mountain karst area, close to the Liguria-Piedmont wa- tershed (Tanaro valley). The aim of this study is to test the response of a known shallow karst cave. The cave was developed in the Mesozoic sedimen- tary cover (dolostones and limestones - CAU : Caprauna Armetta Unit); the shallowest portion of the cave exhibits narrow passages and, at about 30 m below the entrance, a fossil meander which links two large chambers, that represent the target of the geophysical survey.....
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