July 30, 2015

There are many types of ‘targets’ that geophysics can be used to detect.  For exploration, targets can be gold, base metals, specialty metals, diamonds and sand/gravel deposits, to name a few.  Each target type has its own unique response to geophysical methods based on its local geologic environment – this is called its ‘geophysical signature’.

So rather than try to fit one or two geophysical methods for every situation, ClearView’s approach is to maintain a repertoire of many geophysical methods.  Within each method, there are many parameters that can be adjusted.  For example, a gold target in the Abitibi belt could be influenced by intense folding, shearing and alteration.  This requires a relatively high-resolution and focused IP array, as opposed to a ‘bulk-sampling’ array that is more appropriate for large low-grade mineralization.

The process of determining the ‘geophysical signature’ of the target consists of historic data, near-mine tests, and experience from intrusive test follow-up.

ClearView is presently developing a ‘geophysical signature’ for economic mineralization at an operating mine in North Eastern Ontario using modern equipment.  The initial survey design phase will consist of varying various IP parameters.  This is a consulting phase which will be followed up with a test drill-hole to calibrate results so that the designed method can be applied systematically along strike in production-mode.