Method and system for acquiring geological data from a bore hole

A method of charging a blast hole with explosive material comprising:

• aligning a geological measurement instrument, supported on a vehicle, with a bore hole, the bore hole having a bore hole wall;
• lowering the instrument into the bore hole;
• operating the instrument while in the bore hole to acquire geological data of the ground in which the bore hole exists;
• acquiring the geological data, using the instrument, at a plurality of depths in the bore hole;
• retrieving the instrument from the bore hole;
• using the geological data, acquired by the instrument at a plurality of depths in the bore hole, to determine geological characteristics of the ground surrounding the bore hole;
• using the geological data, acquired by the instrument at a plurality of depths in the bore hole, in combination with drill rig data to determine the charge profile of explosive materials for the blast hole, the drill rig data pertaining to the operation of a drill rig and acquired while drilling the bore hole using the drill rig;
• correlating the drill rig data with the geological data, acquired by the instrument at a plurality of depths in the bore hole, and using a combination of the drill rig data and the geological data to control the depositing of the explosive materials into the blast hole;
• determining a charge profile of explosive materials for a blast hole using the geological data acquired by the instrument at a plurality of depths in the bore hole;
• and
• depositing into the bore hole one or more explosive materials on the basis of the determined charge profile for the geological characteristics of the ground surrounding the blast hole.