New Technology Ground EM system
The first outing for our new Ground EM system, was both a proving test for the prototype equipment, as well as a particularly sucessful outcome for the test line.
We spent a morning taking 13 stations across a prospective area which had previously been drilled to a depth of approx 6-700m.
Anticipating recording EM data that confirmed the known drill results, we were rather surprised and impressed with the results.
Below are the first results of processing the initial data - with NO filtering or noise removal. Data was recorded at 20ms on 80ms off, for 5 minutes per station. Transmitter current 110Amps into 100 x 100m loop.
We spent a morning taking 13 stations across a prospective area which had previously been drilled to a depth of approx 6-700m.
Anticipating recording EM data that confirmed the known drill results, we were rather surprised and impressed with the results.
Below are the first results of processing the initial data - with NO filtering or noise removal. Data was recorded at 20ms on 80ms off, for 5 minutes per station. Transmitter current 110Amps into 100 x 100m loop.
Ground EM data
Ground EM data taken with 100m x100m moving loop.
South Australian resistive granite area with conductive bodies at depth.
Note signal out as far as 70ms in places.
CDI below shows resistive sections to 2000m and conductive area at 700-1200m
South Australian resistive granite area with conductive bodies at depth.
Note signal out as far as 70ms in places.
CDI below shows resistive sections to 2000m and conductive area at 700-1200m