Typically,,Weathering of any rock occurs near-surface.
Deeper holes will be less weathered / more “fresh.”
This is why the shallow holes will always be more weathered and expected to have a reduced grade - the first 4 holes are all shallow, shorter holes.
The deeper holes (150-250m) are where you’d expect to see decent grade, similar to Bald Hill’s lithology.
Ann: Second Rig Mobilised to New Dawn Lithium Project, page-3
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