I believe I may have answered one of my questions in this excerpt, where I stated the resitivity changes with the physical state of the mineralization.
are identified as large to moderate area (>600m X 600m) anomalies
exhibiting moderate-strong IP response with DC and MT resistivity moderate-low association,
interpreted to be consistent with structural zones, sulphide/oxide mineralization and/or alteration
zones with potential for gold mineralization. In addition, first priority targets are identified as
large to moderate area (>600m X 600m) anomalies exhibiting moderate-strong IP response
located at the edges and/or over DC and MT resistivity moderate to high gradient zones
interpreted to be consistent with structures (faults, shears and fractures) where disseminated to
weak sulphide/oxide and gold mineralization may be encountered.
IMO