The drilling is aircore-therefore once saprock/fresh rock is intercepted the hole will end due to blade refusal-if the geo wants to go deeper rods are pulled and a hammer is put on rather than the 'blade'.
End of hole multi element samples will be taken for path finder elements and to classify different rock units. If anything of interest then deeper drilling methods will be used.
Ann: Commencement of Drilling at Wodger Prospect, page-14
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