Data
The MIMDAS system collects both a pole-dipole (P-DP) and a dipole-pole (DP-P) configuration in general. Furthermore, both DC and IP data were collected through the system. The data are viewed prior to quality control measures.
Note
The data in UBC format can be downloaded here
DCR
In preparation for the inversion, a first-pass assessment of data quality is completed through visualization. While sensing the same Earth, these two configurations can yield different responses and consequently be subject to different noise levels. The DC data were first separated by line and then by survey configuration.
Note that a large portion of the DP-P shows higher apparent conductivity data than observed on the P-DP configuration. This may be explained by the presence of conductive units on the eastern edge of the survey. As demonstrated with the numerical simulation, current channeling through the Breakaway Shale unit and the mineralization at depth may considerably reduce the measured potentials west of these anomalies.
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IP
Similarly, 2D pseudo-sections of IP data are shown below for first-pass assessment through visualization. Note on several lines the large negative apparent chargeability values on the DP-P configuration. The data for this configuration were particularly noisy and exhibited apparent chargeabilities of less than -100 ms. Therefore, data that was greater than an n-spacing of 10 were removed. This is likely due to low potentials measured as predicted by the forward simulation of the charge density. (Seogi: Question)
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