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 ?
Starting from June of the current year, based on the obtained positive results, control and assessment drilling operations are being carried out from the potentially promising Agyohush site discovered by geologists of AzerGold.
An Environmental Assessment study for the purpose of expanded exploration commenced in early 2017 and is scheduled to be completed soon in preparation for the 2018 target assessment drilling program.
Tunnel refurbishment is almost complete, and additional underground assessment drilling has been finished.

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