Sorry in advance for anyone who thinks this is cross-promoting but its impossible to show the possible value that was announced by Core on 18th April without going into detail about another company than A11. This is all about Passive Seismic, at least that's my theory.
Core hasn't confirmed why they identified and drilled Blackbeard (and Seadog). The intercepts announced yesterday however have all the hallmarks of being pegmatites that didn't make it to the surface and were identified using passive seismic. If Blackbeard was identified through this technology, that is a huge endorsement of the technology. At this stage it remains speculation as to exactly why Core waited nearly two years and then suddenly drilled in these locations to hit multiple fantastic intercepts.
Looking at Blackbeard, there were 3 exploratory holes that any explorer would love to have. 41m @ 1.63% from 137m, 59m @ 1.54m from 158m and 71m @ 1.05% from 101m (Seadog also had a huge hit at 64m @ 1.77% from 128m). These results weren't step-out drilling on known big pegmatites but at least for Blackbeard and I think Seadog the first time these pegmatites have been referenced.
From the co-ordinates, Blackbeard is NE of Centurion and broadly north of "Northern Reward". It would appear Core had no idea about Blackbeard when they acquired the tenement. The early map from Core noted two dozen pegmatites including Leviathan, Northern Reward and Trojan among others. Blackbeard was not a pegmatite named in the acquisition announcement.
The map below is the early drilling of acquired MLN1148. Blackbeard was not noted as a Historic tin occurrence. Where the drilling occurred was just a blank white area on the map. Based on past experience you would target centre/left and that's exactly what Core did.
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