assessment drilling

assessment drilling

[ə′ses·mənt ‚dril·iŋ]
(mining engineering)
Drilling to fulfill the requirement that a prescribed amount of work be done annually on an unpatented mining claim to retain title. Also known as annual labor.
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References in periodicals archive ?
Perth, Australia, Aug 4, 2011 - (ABN Newswire) - Toro Energy Limited (ASX:TOE) (PINK:TOEYF) is pleased to announce the commencement of an enhanced resource assessment drilling program for the Theseus prospect, at the Company's wholly owned Lake Mackay uranium project in Western Australia.
Tier I projects are at the pre-feasibility and production assessment drilling stage.

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