Mining exploration is a long and difficult process. There is a lot of ground to cover and limited resources to get the desired results. It is important to find the best sites through quality sample drilling.

This involves the collection of rocks from the area at a certain distance below the surface. It is crucial for the samples to be intact and unspoiled. This is easier said than done given the difficulty of retrieving them from their locations.

Simply blasting the site to reveal the layers underneath will not do. This will destroy the samples themselves and could alter the character of the rocks. Residue from the blasts may mix in with the samples and affect the lab analysis.

Using the right drilling process is crucial. For soft ground, air core drilling may suffice. For hard ground, RC drilling may be necessary. Consult a specialist for advice.