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Three-dimentional Pseudo-lithology Derived from Interpretation of Airborne Geophysical DataNormal access

Authors: A. Viezzoli, V. Kaminski, H. Paasche and G. Manca
Event name: Second European Airborne Electromagnetics Conference
Session: Forward Modelling and Inversion II
Publication date: 03 September 2017
DOI: 10.3997/2214-4609.201702153
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 942.78Kb )
Price: € 20

A VTEM survey was flown over the Tli Kwi Cho kimberlite complex in 2004. The voltage data turns negative over the two kimberlitic targets (DO-18 and DO-27). The data have been transferred to Aarhus Geophysics in order to be inverted using the Cole-Cole model. The inversion of the data allowed recovery of chargeable and conductive material, which coincides with the pyroclastic and partially volcaniclastic facies of the DO-27 kimberlite. Further the TMI data collected during the same airborne survey have been inverted using 3D inversion code, then all physical properties were combined together and populated a same mesh, then the properties were clustered to yiled a 3D pseudo-lithology distribution.

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