Imaging the geometry and structure of kimberlite pipes using audio-MT
EM methods (1)...
EM methods (2)...
Parameter measured: electrical conductivity (1/resistivity) Range...
Conduction mechanisms...
MT method...
Skin Depth….
MT advantages over controlled-source EM methods
MT signals….
Generic model of a kimberlite
Acquisition Array: 250 m dia. pipe
2D Earth response
3D cf. 2D: rhoTM
Wide conductive pipe: model
Wide conductive pipe: response
Wide conductive pipe: inversion
Thin kimberlite
Resistive kimberlite
Heterogeneous pipe
Imaging kimberlite through till
Phases:
Models:
Conclusions:
Costs for test survey:
Email: ajones@cg.NRCan.gc.ca
Home Page: http://www.cg.nrcan.gc.ca/staff/jones