With only 400 ft left to go, and with the core beginning to show the right kind of alteration, Goldpac Investments (VSE) has encountered a 2-week delay in the deep drilling project on its Bar property near Cranbrook, B.C.
At a depth of about 5,800 ft, with too little water pressure, the core tube welded itself to the drill bit, President John Leask tells The Northern Miner.
About 5,200 ft of the drill string has been removed from the hole, leaving about 600 ft remaining. Two options are now being tested to avoid re-drilling that 600 ft.
Cement has been poured at the bottom of the hole around the B-size string so that drillers can try to drill over the B core with a larger N-size core.
And if that doesn’t work, they’ll try to break the joints on the B string by using a technique known as a reverse tap. “Either way, we’ll get it done,” Leask says.
The target is a geophysical signature suggestive of a Sullivan-type massive sulphide deposit. Visual examination of the core has revealed large amounts of Sullivan-type alteration (tourmalinite, albite and chlorite) as well as thin laminated sulphides (pyrrhotite and sphalerite), slumping and local stratographic thickening, Leask says.
It should take about two weeks to get further results.
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