Light Auger Drilling for Placer Prospecting in the Klondike District, Yukon; A Pilot Project
In unconsolidated material, penetration rates for the all-terrain-vehicle (ATV) drill ranged from 3 ft/hr (0.9 m/hr) in frozen sandy pebble/cobble gravel to 33 ft/hr (10 m/hr) in unfrozen, loose muck. Drilling penetration was influenced by: 1)...