Ann: Alchemy Secures Key Karonie Gold Project-ALY.AX, page-6

One of the key learnings from the Goldfields' Invincible discovery was that in a stripped regolith profile (see paragraph 4, page 3) anomalies might not be as broad as one might expect.

"The absence of a broader gold halo associated with the sub-cropping mineralisation means bedrock testing of good conceptual targets should always be considered where prior exploration techniques have been judged ineffective. Invincible had no discernible supergene dispersion and therefore weak associated gold anomaly in early regolith drilling." Woodcock, NewGenGold 2015