
TY  - JOUR
A1  - Asten, M.W. 
T1  - Drillhole EM ? a strictly scientific Hokey-Pokey
JF  - Exploration Geophysics
JO  - Explor. Geophys.
Y1  - 1996
VL  - 27
IS  - 3
SP  - 41
EP  - 49
KW  - 
UR  - https://doi.org/10.1071/EG996041 
N2  - Examples of drillhole EM (DHEM) from the Eloise copper-gold ore deposit, Queensland, show how EM methods can contribute to exploration and resource evaluation drilling programmes, by determining existence and extent of conductive mineralisation above and below a drillhole, along strike and off-section. Multiple conductors respond with differing transmitter coupling and time-constants, and can be identified by the use of multiple transmitter loops; an extreme example shows how four separate conductors can be identified in one drillhole with the use of five transmitter loops. 
ER  -

